PowerCore™ Electrical Steel
Our Products
ThyssenKrupp Electrical Steel India
2
Contents
ThyssenKrupp Electrical Steel India
3
Application Engineering
4
Non Grain Oriented Electrical Steel PowerCore™ 5
Fully Processed - NGO FP
5-7
Fully Processed - Main Applications
8
Fully Processed High Permeability - AP Type
9
Semi Processed - NGO SP
10-11
Semi Processed High Permeability - PP Type
12
Pole Sheets
13
Insulation Types
14-15
Non Grain Oriented Electrical Steel PowerCore™
Dimensions and Tolerances
16
Pole Sheets
Dimensions and Tolerances
17
Grain Oriented Electrical Steel PowerCore™
19
Grain Oriented Electrical Steel PowerCore™ C
20
Grain Oriented Electrical Steel PowerCore™ H
22-23
Insulation Types
24
Conversion of Units
25
Carbon Steel
27
Properties, Comparison of Standards and
further Information
28-29
Stampings30
Dimensions and Tolerances for E&I Laminations
31
Packing32-33
Sales Network
34
Imprint35
3
ThyssenKrupp Electrical Steel India
ThyssenKrupp Electrical Steel India Ltd. (TKES India),
a wholly owned subsidiary of ThyssenKrupp Electrical
Steel, Germany, is one of the cold rolled electrical steel
manufacturer in India. A leader and a name synonymous with quality and customization. The company
ethos mirrors most characteristics similar to its core
product; like electrical steel ThyssenKrupp Electrical
Steel India is innovative and flexible in its thought process; consistent and technology driven in products;
environment friendly and energy conserving in its
manufacturing process. ThyssenKrupp Electrical Steel
India places its business philosophy on the principles
of sustainability and innovation, quality and customer
focus. ThyssenKrupp Electrical Steel India believes
that any high performance sustainable organization
rests on the three pillars of economic, social and environmental performance.
Product portfolio of ThyssenKrupp Electrical Steel India
is unique to all plants of ThyssenKrupp Steel Europe AG.
ThyssenKrupp Electrical Steel India products include:
-
Non grain oriented electrical steel - NGO
Grain oriented electrical steel - GO
Carbon steel
Stampings
Global demand for energy is constantly rising, and at
the same time resources are becoming increasingly
scarce. The use of innovative high-tech PowerCore™
electrical steel from ThyssenKrupp Electrical Steel India
contributes significantly in minimizing losses in transmission, distribution and usage of electrical energy,
thereby protecting the environment and sustainability
of energy resources.
ThyssenKrupp Electrical Steel India adopted Integrated Management System (PAS: 99) for quality and
environmental standards. It has been awarded ISO
9001 for Quality Management System, ISO 14001 for
Environment Management System and ISO 18001 for
Occupational Health & Safety.
ThyssenKrupp Electrical Steel India is a preferred
supplier for wide range of high quality Low, Medium &
High Carbon Steel for variety of applications in engineering, white-goods and automobile industry. In its
constant endeavor to provide value added products,
ThyssenKrupp Electrical Steel India also offers stampings for small and large electrical machines.
ThyssenKrupp Electrical Steel India Product Range
4
Application Engineering
Continual improvement of quality is always on the
forefront in ThyssenKrupp Electrical Steel India
and investments are continuously made to realize
the products with built in quality. ThyssenKrupp
Electrical Steel India application engineering with
R&D support from ThyssenKrupp, Germany is
always exploring ways to meet the demand of our
customers.
1. Improvement of magnetic, mechanical and
technological properties of our standard
products as well as development of new
grades of electrical steel by:
- Optimization of processing steps
- Analysis of feasibility and application of new
technologies for improving production process
2. Co-operation with customers in developing
optimal solutions for the electromagnetic
systems by:
- Development of appropriate insulation varnish
for various requirements of our customers
- Development of tailor made grades for special
application
- Right choice and economic use of electrical
steel for various applications
With one of the finest NABL (National Accreditation Board for testing and calibration Laboratories)
accredited product testing laboratory, vast technological knowhow along with experience within
ThyssenKrupp enables ThyssenKrupp Electrical
Steel India Application Engineering to develop
customized solutions.
5
Non Grain Oriented Electrical Steel PowerCore™
Fully Processed - NGO FP
Electrical Steel comprise of large family of steels, generally called „soft magnetic materials“. Without electrical steel the economic
generation, distribution & utilization of electricity would not be practical. Wide diversity of electrical machines, equipment and systems
requires specific electro-magnetic and mechanical behaviour of core material. Our PowerCore™ products come to you with a host of
advantages like several choices of insulation coatings & nominal thicknesses, slit widths and cut sheets in rectangular or parallelogram
shapes. The designer can select optimal grade required from standard high permeablity and superior core losses for applications starting from micro motors to power generators and transformers. Our highly skilled Application Engineering team works very closely with
our customers to develop and supply customised PowerCore™ products.
Standard Production Flow Chart
Guaranteed Properties
Magnetic Polarization (B) in Tesla
Thickness
in (mm)
0.35
0.50
0.65
1.00
PowerCore™ Grade
Assumed Density
g/dm3
Core Loss W/kg
at 1.5 T at 50 Hz
at 2500 (A/m)
at 5000 (A/m)
at 10000 (A/m)
Anisotropy at 1.5 T
(in %)
No of bends
(Min)
35C235
7.60
2.35
1.49
1.60
1.70
± 17 %
2
35C250
7.60
2.50
1.49
1.60
1.70
± 17 %
2
35C270
7.65
2.70
1.49
1.60
1.70
± 17 %
3
35C300
7.65
3.00
1.49
1.60
1.70
± 17 %
3
35C330
7.65
3.30
1.49
1.60
1.70
± 17 %
3
50C250
7.60
2.50
1.49
1.60
1.70
± 17 %
2
50C270
7.60
2.70
1.49
1.60
1.70
± 17 %
2
50C290
7.60
2.90
1.49
1.60
1.70
± 17 %
2
50C310
7.65
3.10
1.49
1.60
1.70
± 14 %
3
50C330
7.65
3.30
1.49
1.60
1.70
± 14 %
3
50C350
7.70
3.50
1.50
1.60
1.70
± 12 %
5
50C400
7.75
4.00
1.53
1.63
1.73
± 12 %
5
50C470
7.75
4.70
1.54
1.64
1.74
± 10 %
10
50C530
7.75
5.30
1.56
1.65
1.75
± 10 %
10
50C600
7.75
6.00
1.57
1.66
1.76
± 10 %
10
50C630
7.75
6.30
1.55
1.65
1.76
± 10 %
10
50C700
7.80
7.00
1.60
1.69
1.77
± 10 %
10
50C800
7.80
8.00
1.60
1.70
1.78
± 10 %
10
65C330
7.60
3.30
1.49
1.60
1.70
± 15 %
2
65C350
7.60
3.50
1.49
1.60
1.70
± 14 %
2
65C400
7.65
4.00
1.52
1.62
1.72
± 14 %
2
65C470
7.65
4.70
1.53
1.63
1.73
± 12 %
5
65C530
7.70
5.30
1.54
1.64
1.74
± 12 %
5
65C600
7.75
6.00
1.56
1.66
1.76
± 10 %
10
65C700
7.75
7.00
1.57
1.67
1.76
± 10 %
10
65C800
7.80
8.00
1.60
1.70
1.78
± 10 %
10
65C1000
7.80
10.00
1.61
1.71
1.80
± 10 %
10
100C700
7.65
7.00
1.54
1.64
1.73
±8 %
3
100C1000
7.80
10.00
1.58
1.68
1.76
±6 %
10
100C1300
7.80
13.00
1.60
1.70
1.78
±6 %
10
For grades other than mentioned above please enquire separately. The specimens are tested as sheared. Values are measured according to test method in IS648 & IS649.
6
Non Grain Oriented Electrical Steel PowerCore™
Fully Processed - NGO FP
With the fully processed PowerCore™ standard grades, all important quality features are fully developed. In many cases, magnetic
properties are better than those specified in the standards.
All properties are extremely uniform thanks to reliable process
control and the use of state-of-the-art equipment. The use of
hot strip mainly from the casting-rolling line means that low core
losses can be achieved even with reduced silicon and aluminum
contents. As saturation polarization increases with reduced alloy
contents, our grades display higher polarization values despite
lower core losses in the upper magnetization level.
Typical Properties
Magnetic Properties
Thickness
in (mm)
0.35
0.50
0.65
1.00
PowerCore™
Grade
Core Loss W/kg
at 1.0 T at 50Hz
Core Loss W/kg
at 1.5 T at 50Hz
Physical Properties
Magnetic
Polarization (B)
in Tesla
at 5000 (A/m)
Vicker
Hardness HV1
YS (N/mm2)
TS (N/mm2)
% El
at 80GL
35C235
0.95
2.30
1.61
220 ± 20
440 ± 30
530 ± 30
Min 8
35C250
1.00
2.45
1.63
220 ± 20
440 ± 30
530 ± 30
Min 8
35C270
1.10
2.60
1.63
220 ± 20
440 ± 30
530 ± 30
Min 8
35C300
1.15
2.85
1.63
220 ± 15
350 ± 30
480 ± 30
Min 10
35C330
1.25
3.15
1.63
180 ± 15
295 ± 30
445 ± 30
Min 18
50C250
1.00
2.45
1.61
220 ± 20
440 ± 30
530 ± 30
Min 8
50C270
1.10
2.60
1.63
220 ± 20
440 ± 30
530 ± 30
Min 8
50C290
1.12
2.75
1.63
220 ± 20
440 ± 30
530 ± 30
Min 10
50C310
1.20
2.95
1.63
200 ± 20
350 ± 30
480 ± 30
Min 10
50C330
1.30
3.15
1.64
180 ± 15
295 ± 30
445 ± 30
Min 18
50C350
1.45
3.35
1.64
180 ± 15
295 ± 30
445 ± 30
Min 18
50C400
1.60
3.85
1.64
155 ± 15
250 ± 30
380 ± 30
Min 20
50C470
1.90
4.20
1.66
155 ± 15
250 ± 30
380 ± 30
Min 30
50C530
2.15
4.70
1.67
155 ± 15
250 ± 30
380 ± 30
Min 30
50C600
2.50
5.40
1.67
155 ± 15
250 ± 30
380 ± 30
Min 30
50C630
2.50
5.50
1.70
145 ± 15
260 ± 30
385 ± 30
Min 30
50C700
2.70
6.00
1.70
145 ± 15
260 ± 30
385 ± 30
Min 30
50C800
2.80
6.50
1.71
145 ± 15
260 ± 30
385 ± 30
Min 30
65C330
1.30
3.15
1.62
220 ± 20
440 ± 30
530 ± 30
Min 8
65C350
1.45
3.35
1.63
220 ± 20
440 ± 30
530 ± 30
Min 8
65C400
1.70
3.85
1.63
190 ± 15
320 ± 30
445 ± 30
Min 18
65C470
1.90
4.30
1.64
155 ± 15
250 ± 30
380 ± 30
Min 20
65C530
2.15
4.70
1.65
155 ± 15
250 ± 30
380 ± 30
Min 20
65C600
2.50
5.50
1.67
155 ± 15
250 ± 30
380 ± 30
Min 30
65C700
2.90
6.00
1.68
145 ± 15
260 ± 30
385 ± 30
Min 30
65C800
3.10
6.80
1.70
145 ± 15
260 ± 30
385 ± 30
Min 30
65C1000
4.30
8.00
1.72
130 ± 15
235 ± 30
350 ± 30
Min 30
100C700
3.00
6.50
1.65
180 ± 15
295 ± 30
445 ± 30
Min 18
100C1000
4.30
9.00
1.69
155 ± 15
250 ± 30
380 ± 30
Min 30
100C1300
5.50
12.00
1.71
155 ± 15
250 ± 30
380 ± 30
Min 30
Values shown are the typical ones, not for guarantee.
The specimens are tested as sheared.
Values are measured according to test method in IS648 & IS649.
7
Comparison of Standards
Grades according to
Thickness
(mm)
0.35
0.50
0.65
PowerCore™ Grade
IEC 60404-8-4
JIS C 2552
ASTM A677M
ABNT NM71
-
M235-35 A5
35-A-230
-
-
35C250
35C250
M250-35 A5
35-A-250
36F145
M15
35F 320M
35C270
35C270
M270-35 A5
35-A-270
36F155
M19
35F 349M
35C300
35C300
M300-35 A5
35-A-300
36F175
M22
35F 395M
35C330
35C330
M330-35 A5
-
36F185
M36
35F 420M
50C250
50C250
M250-50 A5
50-A-250
-
-
-
50C270
50C270
M270-50 A5
50-A-270
-
-
-
50C290
50C290
M290-50 A5
50-A-290
47F165
M15
50F 370M
50C310
50C310
M310-50 A5
50-A-310
47F180
M19/M22
50F 385M
50C330
50C330
M330-50 A5
50-A-330
47F190
M27
50F 398M
50C350
50C350
M350-50 A5
50-A-350
47F200
M36
50F 422M
50C400
50C400
M400-50 A5
50-A-400
47F240
M43
50F 466M
50C470
50C470
M470-50 A5
50-A-470
47F280
-
50F 519M
50C530
50C530
M530-50 A5
-
-
M45
50F 684M
50C600
50C600
M600-50 A5
50-A-600
-
-
-
50C630
50C630
-
-
-
-
50C700
50C700
M700-50 A5
50-A-700
47F400
M47
-
50C800
50C800
M800-50 A5
50-A-800
47F450
-
-
65C330
65C330
M330-65 A5
-
-
-
-
65C350
65C350
M350-65 A5
-
64F200
M19
-
-
-
Former AISI
35C235
65C400
65C400
M400-65 A5
-
64F225
M27
65F 500M
65C470
65C470
M470-65 A5
-
64F275
M43
65F 600M
65C530
65C530
M530-65 A5
-
-
-
-
65C600
65C600
M600-65 A5
-
-
-
65F 770M
65C700
65C700
M700-65 A5
-
64F320
-
-
65C800
65C800
M800-65 A5
65-A-800
-
(M47)
-
65C1000
65C1000
M1000-65 A5
65-A-1000
64F550
-
-
100C700
1.00
IS 648
-
M700-100 A5
-
-
-
-
100C1000
100C1000
M1000-100 A5
-
-
-
-
100C1300
100C1300
M1300-100 A5
-
-
-
-
Comparison above in indicative to the nearest grade in the specification.
8
Non Grain Oriented Electrical Steel PowerCore™
Fully Processed - Main Applications
PowerCore™ Grade
Core Loss W/kg at 1.5 T and 50 Hz
Rotating Machines
Large Rotating Machines
Medium Capacity Rotating Machines
General Use A.C. Motors
Hermetically Sealed Motors
Home Appliance Motors
Small Motors
Fractional Horse Power Motor
Domestic Fan & Industrial Motors
Static Machines
Small Power Transformer
Reactor
Audio Transformer
Instrument Transformer
Ballast
Welding Transformer
Magnetic Switches
> 7.0
6.1 - 7.0
5.1 - 6.0
4.1 - 5.0 3.6 - 4.0
3.3 - 3.5
3.0 - 3.1
< 3.0
9
Non Grain Oriented Electrical Steel PowerCore™
Fully Processed High Permeability - AP Type
PowerCore™ AP grades offer decisive advantages especially for
higher field strength, mini motors in the field of application up to
200 Hz and medium sized motors for which a good heat conductivity of the steel sheet is important. For ballasts, these grades enable a higher rated working induction. In general, AP PowerCore™
grades help in downsizing the motor and reduce the overall cost
of electrical equipment due to reduced consumption of copper as
well as steel.
Non grain oriented electrical steel PowerCore™ fully processed
high permeability has been developed for the first time in the
country by ThyssenKrupp Electrical Steel India with technological
know-how provided by ThyssenKrupp, Germany. They are called
“PowerCore™ AP Grades” and designated by suffix “AP”.
Magnetic properties in all directions are significant for PowerCore™
AP grades. We achieve this by means of a special manufacturing
technology which results in an advantageous isotropic texture in
all directions in the plane of the sheet. At medium field strength
PowerCore™ AP grades can be more readily magnetized resulting
into increased magnetic PowerCore™ polarization value (permeability).
The following points are note worthy for PowerCore™ AP grades:
- For a given core loss, these steels exhibit substantially higher
magnetic polarization values (by about 3-8 %) than standard
non grain oriented fully processed grades
- Permeability at 1.5 T is higher by more than 30 % over standard
PowerCore™ non grain oriented fully processed grades
Guaranteed Properties
Magnetic Polarization (B) in Tesla
Thickness
in (mm)
0.50
0.65
PowerCore™ Grade
Assumed Density
g/dm3
Core Loss W/kg
at 1.5 T at 50 Hz
at 2500 (A/m)
at 5000 (A/m)
at 10000 (A/m)
Anisotropy of
core loss at 1.5 T
50C350-AP
7.70
3.50
1.55
1.65
1.75
± 12 %
5
50C400-AP
7.70
4.00
1.56
1.66
1.76
± 12 %
5
50C470-AP
7.75
4.70
1.57
1.67
1.77
± 10 %
10
50C530-AP
7.75
5.30
1.58
1.68
1.78
± 10 %
10
50C600-AP
7.75
6.00
1.59
1.68
1.78
± 10 %
10
50C630-AP
7.80
6.30
1.60
1.70
1.80
± 10 %
10
50C800-AP
7.80
8.00
1.60
1.70
1.80
± 10 %
10
65C400-AP
7.70
4.00
1.55
1.65
1.75
± 14 %
2
For grades other than mentioned above please enquire separately. The specimens are tested as sheared.
Values are measured according to test method in IS648 & IS649.
Typical Properties
Magnetic Properties
Thickness
in (mm)
0.50
0.65
No of bends
(Min)
Core Loss W/kg
at 1.5 T at 50 Hz
Physical Properties
Magnetic
Polarization
(B) in Tesla
at 5000 (A/m)
Vicker
Hardness HV1
YS (N/mm2)
TS (N/mm2)
% El
at 80GL
PowerCore™ Grade
Core Loss W/kg
at 1.0 T at 50 Hz
50C350-AP
1.45
3.35
1.67
180 ± 15
295 ± 30
445 ± 30
Min 18
50C400-AP
1.60
3.85
1.68
155 ± 15
250 ± 30
380 ± 30
Min 20
50C470-AP
1.90
4.20
1.70
155 ± 15
250 ± 30
380 ± 30
Min 30
50C530-AP
2.15
4.70
1.71
155 ± 15
250 ± 30
380 ± 30
Min 30
50C600-AP
2.50
5.00
1.72
145 ± 15
260 ± 30
385 ± 30
Min 30
50C630-AP
2.70
5.30
1.73
145 ± 15
260 ± 30
385 ± 30
Min 30
50C800-AP
3.35
7.10
1.74
130 ± 15
260 ± 30
400 ± 30
Min 30
65C400-AP
1.70
3.85
1.66
190 ± 15
320 ± 30
445 ± 30
Min 18
Values shown are typical ones, not for guarantee. The specimens are tested as sheared.
Values are measured according to test method in IS648 & IS649.
10
Non Grain Oriented Electrical Steel PowerCore™
Semi Processed - NGO SP
In PowerCore™ non grain oriented semi processed steel, the magnetic properties are fully developed only after the decarburization and
annealing of laminations. Magnetic properties are indicated in the test certificates, based upon annealing of Epstein samples according to the process conditions specified in IEC specifications (IEC 60404-8-2 & IEC 60404-8-3). Typical magnetic properties vastly
outperform the national and international standards. NGO SP is supplied in uncoated condition with high matt finish to avoid lamination
sticking in annealing. Our vast range of NGO SP steel is ideally suitable for motors 20HP or below.
Guaranteed Properties
Magnetic Polarization (B) in Tesla
Thickness
in (mm)
0.50
0.65
PowerCore™ Grade
Assumed Density
g/dm3
Core Loss W/kg
at 1.5 T at 50 Hz
7.65
3.40
1.54
1.62
1.72
7.70
3.90
1.56
1.64
1.74
50SP450
7.75
4.50
1.57
1.65
1.75
50SP560
7.80
5.60
1.58
1.66
1.76
50SP660
7.85
6.60
1.62
1.70
1.79
50SP700
7.85
7.00
1.62
1.70
1.79
50SP890
7.85
8.90
1.60
1.68
1.78
65SP390
7.65
3.90
1.54
1.62
1.72
65SP630
7.80
6.30
1.58
1.66
1.76
65SP800
7.85
8.00
1.62
1.70
1.79
65SP1000
7.85
10.00
1.60
1.68
1.78
Grades according to
0.65
at 10000 (A/m)
50SP340
Comparsion of Standards
0.50
at 5000 (A/m)
50SP390
The specimens are tested as sheared after annealing.
Values are measured according to test method in IS15391 & IS15649.
The sampling method in IS15391 & IS15649 is practically the same as ASTM A 34.
Thickness
(mm)
at 2500 (A/m)
PowerCore™
Grade
IS 15391
IEC 60404-8-2 &
IEC 60404-8-3
EN10126
50SP340
50SP340E5
M340-50 E5
M340-50 E
50SP390
50SP390E5
M390-50 E5
M390-50 E
50SP450
50SP450E5
M450-50 E5
M450-50 E
50SP560
50SP560E5
M560-50 E5
M560-50 E
50SP660
50SP660D5
M660-50 D5
M660-50 D
50SP700
-
-
-
50SP890
50SP890D5
M890-50 D5
M890-50 D
65SP390
65SP390E5
M350-65 E5
M390-50 E
65SP630
65SP630E5
M630-65 E5
M630-50 E
65SP800
65SP800D5
M800-65 D5
M800-50 D
65SP1000
65SP1000D5
M1000-65 D5
M1000-50 D
11
Typical Properties
Magnetic Properties
Thickness
in (mm)
0.50
0.65
Physical Properties
Core Loss W/kg
at 1.0 T at 50 Hz
Core Loss W/kg
at 1.5 T at 50 Hz
Magnetic
Polarization
(B) in Tesla
at 5000 (A/m)
50SP340
1.40
3.20
1.64
50SP390
1.60
3.60
1.66
50SP450
1.80
3.80
50SP560
2.20
50SP660
50SP700
Vicker
Hamess HV1
YS (N/mm2)
TS (N/mm2)
% EL
at 80GL
700
205 ± 15
500 ± 30
575 ± 30
25 ± 3
850
180 ± 15
360 ± 30
460 ± 30
27 ± 3
1.67
1000
180 ± 15
385 ± 30
475 ± 30
27 ± 3
4.50
1.69
1600
165 ± 15
350 ± 30
440 ± 30
28 ± 3
2.35
4.80
1.70
1700
160 ± 15
360 ± 30
430 ± 30
28 ± 3
2.60
5.80
1.70
1700
150 ± 15
360 ± 30
430 ± 30
28 ± 3
50SP890
3.20
7.50
1.69
1900
130 ± 15
240 ± 30
340 ± 30
30 ± 3
65SP390
1.70
3.60
1.65
750
205 ± 15
500 ± 30
575 ± 30
25 ± 3
65SP630
2.55
5.40
1.68
1600
155 ± 10
350 ± 30
435 ± 30
28 ± 3
65SP800
3.00
6.30
1.71
1700
160 ± 10
290 ± 30
390 ± 30
30 ± 3
65SP1000
2.80
8.00
1.70
1700
130 ± 12
290 ± 30
340 ± 30
30 ± 3
PowerCore™ Grade
Values shown are the typical ones, not for guarantee.
The specimens are tested as sheared after annealing.
Values are measured according to test method in IS648 & IS649.
Standard Production Flow Chart
Permeability
12
Non Grain Oriented Electrical Steel PowerCore™
Semi Processed High Permeability - PP Type
texture provides especially good longitudinal and transverse
magnetic properties. PowerCore™ PP grades are supplied in pre
decarburized condition with anti stick weldable insulation coating.
PowerCore™ PP grades develop final magnetic properties after
stress relief annealing (in controlled atmosphere) of laminations
and decarburization annealing is avoided. PowerCore™ PP grades
offers better punchability over standard semi processed grades
even on alloy steel tools due to lower yield strength to tensile
strength ratio and insulation coating. PP grades are ideal choice
for energy efficient motors and motors for home appliances working at medium field strength.
Non grain oriented electrical steel PowerCore™ semi processed
high permeability has been developed for the first time in the
country by ThyssenKrupp Electrical Steel India with technological know-how provided by ThyssenKrupp. They are called
“PowerCore™ PP Grades” and designated by suffix “PP”.
Magnetic properties in all directions are significant for PowerCore™
PP grades. PowerCore™ PP grades optimize two related characteristics of various electrical steels which are important for the
designer: the low core loss of high alloyed grades and the high
magnetic polarization of low alloyed grades. A strongly developed
Guaranteed Properties
Thickness
in (mm)
0.50
Magnetic
Polarization
(B) in Tesla
Permeability
Typical
Assumed Density
g/dm3
Core Loss W/kg
at 1.5 T at 50 Hz
at 5000 (A/m)
μ
390-50 PP
7.75
3.90
1.73
> 2500
560-50 PP
7.80
5.60
1.74
> 2800
PowerCore™ Grade
For grades other than mentioned above please enquire separately. The specimens are tested as sheared after annealing.
Values are measured according to test method in IS648 & IS649.
Typical Properties
Thickness
in (mm)
0.50
PowerCore™
Grade
Core Loss
W/kg at 1.5 T
at 50Hz
Magnetic
Polarization
(B) in Tesla
Permeability
Typical
at 5000
(A/m)
μ
Physical Properties
Vicker
Harness
HV1
YS
(N/mm²)
TS
(N/mm²)
% El
at 80GL
390-50 PP
3.50
1.73
> 2500
155 ± 15
250 ± 30
380 ± 30
Min 30
560-50 PP
4.80
1.74
> 2800
130 ± 15
235 ± 30
375 ± 30
Min 30
For grades other than mentioned above please enquire separately. The specimens are tested as sheared after annealing.
Values are measured according to test method in IS648 & IS649.
13
Pole Sheets
Cold rolled pole sheets, also called tensile steel, are graded according to the 0.2 % proof stress. Minimum values of tensile strength
and elongation are defined as is magnetic polarization at field strength of 15000 AT/m. Hot rolled material is carefully selected and
processed according to a production technology related to the grades, enabling us to guarantee minimum values for our PowerCore™
grades. PowerCore™ grades are preferred for use in the poles of large high speed machines for poles and rims. PowerCore™ grades in
thickness of ≤ 1.0 mm can also be delivered with C6W insulation for better surface resistivity. Dimensions, tolerances and geometric
deviations are confirmed for PowerCore™ grades according to specification IEC 404-8-5: 1998.
Properties
PowerCore™
Grade
Yield
Strenght
(YS)
Guaranteed
(min)
Tensile
Strength
(UTS)
Guaranteed
(min)
%
Elongation
80 (GL)
Guaranteed
(min)
Magnetic
Polarization
AT 15000
AT/M
Guaranteed
(min)
Magnetic
Polarization
AT 15000
AT/M Typical
(min)
Magnetic
Polarization
AT 5000
AT/M Typical
N/mm2
N/mm2
%
Tesla
Tesla
250-xxx TF
250
325
16
1.83
1.86
Tesla
1.62
300-xxx TF
300
375
15
1.82
1,85
1.57
350-xxx TF
350
425
13
1.81
1.84
1.54
400-xxx TF
400
450
10
1.80
1.83
1.52
450-xxx TG
450
550
14
1.79
1.82
1.56
550-xxx TG
550
650
12
1.78
1.81
1.55
600-xxx TG
600
700
10
1.78
1.81
1.52
Designation of Grades
Minimum 0.2 % Proof Stress
in N/mm²
100 x Nominal Thickness
in mm
Characteristic Letters:
TG for Hot Rolled
TF for Cold Rolled
14
Non Grain Oriented Electrical Steel PowerCore™
Insulation Types
Product
Insulation Designations
Parameter
C3ML Organic
AISI Class
C3M Organic
C3Y Organic
C3
German Equivalence
C3
Stabolit 10
Coating Type
Range of Application
Colour
Average Coating Thickness μm
Stabolit 10
Water Soluble Polyester Base
Water Soluble Modified Phenolic Resin
Small & Medium Electrical Machine
Medium to Large Machine, Traction Motor,
High Voltage Machine & Turbo Generator
Light Golden Yellow
Golden Yellow
Grey
1.5 ± 0.5
3.0 ± 1.0
4.0 ± 1.0
5.0 ± 1.0
Space Factor (%)/Stacking Factor
> 97.5
> 97.0
> 97.0
> 96.0
Typical Average Insulation Resistivity in Amps.
0.39
0.24
0.17
0.11
Typical Average Insulation Resistivity in Ω. cm2/La
10
20
30
50
Long term temperature resistance as per IEC 60404-12, Deg °C
Stess relief Annealing in Nature/Reducing Atmosphere
Temperature at 800 Deg °C
Weldable
180
180
180
180
Cannot
Withstand
Cannot
Withstand
Cannot
Withstand
Cannot
Withstand
*
No
No
No
Pencil Hardness
8H
8H
8H
8H
Punchability
3.0X
3.0X
2.0X
2.0X
Very Good
Corrosion Resistance
Good
Good
Good
Resistance to organic solvent oil & lubricant oil
Resist
Resist
Resist
Resist
-
-
-
-
Resistance to Freon Gas
1. Colour deviation is possible without effect
of on coating properties.
2. Coating thickness is checked by
FISHER DELTASCOPE coating thickness tester.
C3M / C3ML:
The C3M / C3ML coating, equivalent to C3
of AISI, improves punchability up to three
times as compared to uncoated electrical
steel. It is resistant to normal operating
temperatures & is highly corrosion resistant
(C3M / C3ML coatings can be used as a
corrosion undercoat for C6 coatings) but will
not withstand stress-relief annealing (SRA).
It is suitable for applications where high
level of inter laminar resistance is required.
Suitable for small & medium sized motors as
well as small transformers.
C3Y:
C3Y coating equivalent to C3 of AISI,
provides thick coating with excellent surface
insulation resistivity. This coating has better
corrosion resistance than C3M / C3ML. This
coating cannot with stand stress relief annealing. It is suitable for applications where
very high level of inter laminar resistance is
required such as in medium to large machines, traction motors, high voltage machines
& turbo generators.
3. Space factor is checked in accordance, with IS 649:1997,
values as mentioned are for 0.50 mm, for other thickness
kindly enquire separately.
C6A:
C6A coating, equivalent to C6 of AISI, provides ridge free thick coating and therefore
increases surface insulation resistivity.
Inorganic fillers are added to increase the
insulating ability of the coating. It has good
punchability & withstands high temperature
„burn off“ treatments used during rebuilding of motors. This coating exhibits low
shrinkage (compressibility) and has excellent
thermal coefficient of expansion due to
high pigment concentration. Suitable for
large and medium sized motors, H2 cooled
generators & large turbo generators. Ideal
for magnetic cores of contactors and high
frequency application because of it‘s capability to withstand vibration.
15
C6A Semi Organic
C6W Weldable
C6
C5
Stabolit 40
C6U Semi Organic
C6U semi Organic
C5
Stabolit 20
Stabolit 60
Water Soluble Modified Phenolic Resin
Polyacrylo Nitrile Resin in Chromate Base
Inorganic Organic Pigmented Phosphate Base
Large Machine, H2 cooled Generators, Compatible for
motor with Epoxy impregnated Resins
All round varnish for Small to Medium motors
All round varnish for Small to Medium motors
Grey
Light Apple Green
Grey
4.0 ± 1.0
6.0 ± 1.0
7.0 ± 1.0
0.6 ± 0.3
1.5 ± 0.5
3.0 ± 1.0
> 95.5
> 95.0
> 95.0
> 97.5
> 97.0
> 97.0
0.08
0.066
0.066
75
90
0.56
0.3
0.17
90
5
15
30
180
180
180
180
200
200
Cannot
Withstand
Cannot
Withstand
Cannot
Withstand
Can
Withstand
Can
Withstand
Can
Withstand
No
No
No
Yes
Yes
Yes
8H
8H
8H
8H
8H
8H
1.5X
1.5X
1.5X
2.0X
1.5X
1.5X
Very Good
Very Good
Very God
Satisfactory
Good
Good
Resist
Resist
Resist
Resist
Resist
Resist
-
-
-
Resist
Resist
Resist
4. Insulation resistivity is checked
in accordance with IS 649:1997 and ASTM 717.
C6W:
C6W coating, equivalent to C5 of AISI,
provides good surface resistivity both before
and after stress relief annealing. Presences
of organic parts ensure improved punch and
die life during stamping operations. During
annealing, the organic part of the coating volatilizes but inorganic part remains to provide
an adherent film with a high level of surface
resistivity. No significant flaking occurs at
the punched edges of laminations.
5. X-Punchability of bare steel.
Significant punchability improvement (min
2 times of bare steel) & adequate surface
insulation resistance despite low coating
thickness are obtained with this type of coatings. Used for refrigerator motors, small to
large sized motor. C6W coatings are useful
for small and medium sized motors where
high temperature resistance and weldability
are required.
6. *Yes (conditions apply).
C6U:
It is a pigmented organic coating. It displays
good weldablity and punchability at low
coating thickness. It offers good corrosion
protection and high elevated temperature
strength. The insulation is ideal for operations where the material is exposed to
thermal stresses i.e. welding, die casting,
SRA etc.
16
Non Grain Oriented Electrical Steel PowerCore™
Dimensions and Tolerances
Nominal Thickness
mm
0.35
0.50
0.65
1
Maximum deviation from minimal thickness
%
±8
±8
±6
±6
Maximum thickness variation transverse to rolling direction mm
(measurement being made at least 30 mm from slit edge)
mm
0.02
0.02
0.03
0.04
Standard Width Range*
mm
27 to 1200
27 to 1250
50 to 1250
100 to 1200
Standard Length Range (minimum width 300 mm)
mm
Weight range
600 - 4000**
Kg/mm
Width
2 -5
Width Tolerance for width***
mm
Up to 150
mm
+ 0.20 / -0.0
151 - 300
mm
+ 0.30 / -0.0
301 - 500
mm
+ 0.50 / -0.0
501 - 1000
mm
+ 1.00 / -0.0
> 1000
mm
+ 1.50 / -0.0
Length Tolerance
mm
+3.00 / -0.0 ( up to 3000 mm length ) & +10.0 / -0.0* for > 3000 mm length
Pallet Weight
MT
1 - 2.5 MT
* Maximum depends on the grade.
** Depends on width requirement but not less than 600 mm.
*** Postive or negative tolerance are indicative, supplies can be made considering it as band.
Edge camber:
- The edge camber shall not exceed for
a measuring length of 1 m.
- 0.5 mm for a nominal width > 150 mm.
- 1.00 mm for a nominal width between
30 - 150 mm.
Flatness:
Flatness does not apply to materials of
width less than or equal to 100 mm.
The wave factor expressed as ratio of wave
height to wavelength in percentage will be
below 1.5 %.
Burr level:
The burr level of CR slit edge will be 50 microns max, typically it will be 30 microns.
17
Pole Sheets
Dimensions and Tolerances
Maximum deviation from Nominal thickness
Nominal thickness
Maximum thickness variation //
< 600
600 - 1200
to rolling direction mm
mm
> 1200
0.40 - 0.60
0.60 - 0.80
0.80 - 1.00
1.00 - 1.20
1.20 - 1.50
1.50 - 2.00
2.00 - 2.50
± 0.03
± 0.04
± 0.05
± 0.05
± 0.05
± 0.06
± 0.06
± 0.06
± 0.04
± 0.05
± 0.05
± 0.05
± 0.05
± 0.07
± 0.07
± 0.07
± 0.04
± 0.06
± 0.06
± 0.06
± 0.06
± 0.08
± 0.08
± 0.08
0.035
0.04
0.05
0.05
0.05
0.05
0.05
0.05
Maximum thickness variation transverse to
rolling direction (1)
mm
Standard Width Range
mm
300 - 1250
mm
600 - 4000*
Kg/mm
Width
2-5
(2)
Standard Length Range
Weight range
Width Tolerance for width (3)
301 - 500
mm
+ 0.50/- 0.0
501 - 1000
mm
+ 1.00/- 0.0
> 1000
mm
+ 1.50/- 0.0
Length Tolerance
mm
+ 5.00/- 0.0 & +10.0/- 0.0* for maximum length
Pallet Weight
MT
1 - 2.5 MT
1. Measurements being made at least 30 mm from slit edge.
2. Typically sheet from is only offered, for coil from special processing required.
3. Postive or negative tolerance are indicative, supplies can be made considering it as band.
2.50 - 3.00
18
19
Grain Oriented Electrical Steel PowerCore™
Grain oriented electrical steel is a highly sophisticated high-tech core material. It is used wherever
motion is transformed into electrical energy or
electrical energy is transformed into motion and
where electrical energy is transmitted across large
distances. Laminated or wound grain oriented
electrical steel is the core material used in power
and distribution transformers and also in small
transformers. Premium PowerCore™ electrical
steel grades significantly reduce noise emissions
in transformers, a distinct advantage in the light
of growing urbanization. PowerCore™ electrical
Applications of CRGO
Power Transformers
Distribution Transformers
Welding Transformers
Instrument Transformers
Current Transformers
Potential Transformers
Rectifiers and Reactors
UPS & Inverters
Standard Production Flow Chart GO
steel is so energy-efficient that it is now possible
to build considerably smaller transformers with
the same power output. Since this reduces the
consumption of finite resources such as copper, oil and insulating materials, grain oriented
electrical steel can be said to make a valuable
contribution to environmental sustainability. Our
central research and development departments
continuously optimize the complex production flow
and production characteristics of our PowerCore™
grain oriented electrical steel in a permanent
process.
20
Grain Oriented Electrical Steel PowerCore™ C
Our high quality PowerCore™ line includes a complete choice of grain oriented steels, ranging from conventional PowerCore™ C to high
permeable PowerCore™ H. Our wide range of products and flexible production methods, which we achieve by coordinating the management of our manufacturing plants, enable us to meet our customers requirements. The excellent magnetic properties of PowerCore™ steel
are due to its unique crystallographic texture, which is formed during the complex production process.
Guaranteed Properties
Thickness
in (mm)
PowerCore™
Grade (1)
Core Loss W/kg
at 1.7 T at 50 Hz
Core Loss W/kg
at 1.5 T at 50 Hz
(indicative)
C 120-27
1.20
0.80
1.80
1.50 %
± 0.03
C 130-27
1.30
0.85
1.78
1.50 %
± 0.03
C 140-27
1.40
0.89
1.75
1.50 %
± 0.03
PowerCore™
Grade (1)
Core Loss W/kg
at 1.7 T at 50 Hz
Core Loss W/kg
at 1.5 T at 50 Hz
(indicative)
C 120-27
1.16
0.78
1.82
< 1.0 %
+ 0.01 / - 0.02
C 130-27
1.24
0.82
1.82
< 1.20 %
+ 0.01 / - 0.02
C 140-27
1.32
0.86
1.78
< 1.30 %
+ 0.01 / - 0.02
0.27
Magnetic Polarization (B)
in Tesla at 800 (A/m)
(minimum)
Flatness: Wave height
to Wave length ratio
(maximum)
Tolerance Thickness
in mm
Typical Properties
Thickness
in (mm)
0.27
Physical Properties
Magnetic Polarization (B)
in Tesla at 800 (A/m)
Flatness: Wave height
to Wave length ratio
(maximum)
Comparison of Standards
Ultimate tensile strength Rm
Grades according to
longitudinal in rolling direction
330-370 MPa
transverse to rolling direction
390-420 MPa
Thickness
(mm)
Yield point Rp 0,2
longitudinal in rolling direction
transverse to rolling direction
Tolerance Thickness
in mm
300-340 MPa
330-360 MPa
Elongation
longitudinal in rolling direction
6-14 %
transverse to rolling direction
24-48 %
Hardness
HRB 15T
75-85
HV 1
180-200
Saturation polarization JS
2.03 T
Coercive field strength HS
5 A/m
Curie temperature Tc
745 °C/1345 °F
Density pm
7.65 kg/dm3
Electrical resistivity pe
0.48 μΩm
0.27
PowerCore™
Grade
IS 3024
IEC 60404-8-7
JIS C 2553
C 120-27
27CG120
M 120-27S 5
27G120
C 130-27
27CG130
M 130-27S 5
27G130
C 140-27
27CG140
27G140
21
© Siemens AG
22
Grain Oriented Electrical Steel
PowerCore™ H
ThyssenKrupp Electrical Steel’s high-tech core material PowerCore™ H has been largely responsible for increasing the efficiency
of power and distribution transformers.
PowerCore™ H grades have a more defined crystallographic
texture than PowerCore™ C grades. This reduces both total core
loss and magnetostriction, making PowerCore™ H grades the
material of choice for transformers used in areas requiring low
noise emissions.
The use of PowerCore™ H can also significantly reduce total manufacturing costs for transformers, a major advantage in the face
of rising raw material costs.
PowerCore™ H is the core material for the future!
Cost benefits due to:
- lower core weights
- more compact dimensions
Higher efficiency due to:
- minimum no-load losses
- better capitalization of losses
Reduced noise emissions due to:
- extremely low level of magnetostriction
- improved insulation properties
23
Guaranteed Properties
Thickness
in (mm)
PowerCore™
Grade (1)
Core Loss W/kg
at 1.7 T at 50 Hz
PCH090-27
0.90
1.85
1.50 %
± 0.03
PCH095-27
0.95
1.85
1.50 %
± 0.03
PCH103-27
1.03
1.88
1.50 %
± 0.03
0.27
Magnetic Polarization (B)
in Tesla at 800 (A/m)
(minimum)
Flatness: Wave height
to Wave length ratio
(maximum)
Tolerance Thickness
in mm
Typical Properties
Thickness
in (mm)
PowerCore™
Grade (1)
0.27
Core Loss W/kg
at 1.7 T at 50 Hz
Magnetic Polarization (B)
in Tesla at 800 (A/m)
Tolerance Thickness
in mm
PCH090-27
0.87
1.91
+ 0.01 / - 0.02
PCH095-27
0.92
1.91
+ 0.01 / - 0.02
PCH103-27
0.97
1.89
+ 0.01 / - 0.02
Physical Properties
Comparison of Standards
Ultimate tensile strength Rm
Grades according to
longitudinal in rolling direction
330-370 MPa
transverse to rolling direction
390-420 MPa
Thickness
(mm)
Yield point Rp 0,2
longitudinal in rolling direction
300-340 MPa
transverse to rolling direction
330-360 MPa
Elongation
longitudinal in rolling direction
6-14 %
transverse to rolling direction
24-48 %
Hardness
HRB 15T
75-85
HV 1
180-200
Saturation polarization JS
2.03 T
Coercive field strength HS
5 A/m
Curie temperature Tc
745 °C/1,345 °F
Density pm
7.65 kg/dm3
Electrical resistivity pe
0.48 μΩm
0.27
PowerCore™
Grade
IS 3024
IEC 60404-8-7
JIS C 2553
PCH090-27
-
M 90-27P 5
27 R 090
PCH095-27
27HP100
M 95-27P 5
27 R 095
PCH103-27
27HP110
M 110-27P 5
27 R 110
24
Grain Oriented Electrical Steel PowerCore™
Insulation Types
The grain oriented electrical steel is supplied with a thin inorganic coating on the glass film layer which forms during annealing.
A coating thickness of 2 to 5 qm provides good electrical resistance and a high stacking factor. The coating, which is annealing resistant
up to 840 °C, enables wound cores and punched laminations to be stress relief annealed.
The coating is chemically resistant to any fluid it may be exposed to during the production process. It is unaffected by, and likewise does
not affect, the different types of transformer oils.
Insulation Types
Product
CRGO
Coating Type
C-5
Parameter
C5 (G)
Inorganic
AISI Class
C5
Coating Type
Phosphate Over Glass Film
Range of Application
Power & Distribution Transformer
Colour
Grey
Average Coating Thickness µm
3.5 ± 1.5
Space Factor (%)/Stacking Factor
> 96.0
Typical Average Insulation Resistivity in Amps.
0.38
Typical Average Insulation Resistivity in Ω.cm2/La
10
Stress relief Annealing in Nature/
Reducing Atmosphere Temperature at 800 Deg °C
Can Withstand
Corrosion Resistance
Good
Resistance to organic solvent oil,
lubricant oil & transformer oil
Resist
1. Colour deviation is possible without effect of on coating properties.
2. Coating thickness is checked by FISHER DELTASCOPE coating
thickness tester.
3. Space factor is checked in accordence, with IS 649:1997.
4. Insulation resistivity is checked in accordence with IS 649:1997.
25
Conversion of Units
Conversion of Units
Term
Magnatic flux density (B)
Magnatic field strength (H)
Core Loss
Length (l)
Area (A)
Volume (V)
Mass (m)
Tensile strength (Rm)
Temperature (T)
To convert from
to be multiplied by
Tesla (Wb/m ) to Guass
10
Gauss to tesla (Wb/m2)
10-4
Ampere-turns/meter to Oersted
0.0126
Oersted to Ampere-turns/meter
79.6
Ampere-turns/meter to Ampere-turns/inch
0.0254
Ampere-turns/meter to Ampere-turns/cm
0.01
Watt/kg to Watt/pound
0.4536
Watt/pound to Watt/kg
2.205
2
4
Watts/kg at 60 Hz (1.5 T) to Watts/kg at 50 Hz (1.5 T)
0.75 for GO, 0.79 for NGO
Watts/Ib at 60 Hz (1.5 T) to Watts/kg at 50 Hz (1.5 T)
(approximate) 1.65
Centimeter to Inch
0.3937
Inch to Centimeter
2.54
Square cm to Square inch
0.155
Square inch to Square cm
6.45
cm3 to Cubic inch
0.061
Cubic inch to cm3
16.4
gm to Ounce
0.0353
Kg to pound
2.205
Ounce to gm
28.35
Pound to Kg
0.4536
N/mm2 to Kg/mm2
0.102
Kg/ mm2 to N/mm2
9.81
°C to °F
x 1.8 + 32
°F to °C
x 0.556 - 17.8
for GO, 1.74 for NGO
© Alstom Power
26
27
Carbon Steel
Carbon Steel comprises a large family of steel. At ThyssenKrupp Electrical Steel, India carbon steel family is classified
in three categories as Low Carbon, Medium Carbon & High
Carbon. Carbon content in steel determines its strength
and ductility, higher the carbon content, the higher steel
strength and the lower its ductility. Carbon steel is having
numerous usages across the variety of industries like engineering, automobile, white goods, machinery, panel boards
and agriculture. ThyssenKrupp Electrical Steel India has
marked its presence firmly by successfully offering various
grades in carbon steel category as per industry specific
requirements like physical properties, strip shape, uniform
surface roughness and so on.
Low Carbon Steel
Low carbon steel (commonly known as mild steel) is a type
of steel that has carbon as alloying element in low amount.
Typically, it has a carbon content that ranges less than 0.25 %.
Low carbon steel can be used to manufacture a wide range
of goods - from white goods, automobile to numerous engineering applications. ThyssenKrupp Electrical Steel, India
offers CRCA (Cold Rolled Closed Annealed) and CRFH (Cold
Rolled Full Hard) material. To facilitate trouble free usage in
drawing, plating or painting operations, all above qualities
are available in both bright and matt surface finish.
Standard Production Flow Chart
Medium Carbon Steel
Medium carbon steel is having carbon content in the range
0.25 % to 0.65 %. It is having a good balance of ductility
and strength, with superior wear resistance and amenable
for further heat treatment. These steels are typically used in
large parts, forging, spindles, chains, bolts, rods, crankshafts, gears, mandrels, axles, tubing in the automotive
industry and heat treated machined components.
High Carbon Steel
High carbon steel is a metal alloy containing higher
amounts of carbon. The amount of carbon in high carbon
steel can be in range of 0.66 % to 1.25 %. It has higher
strength and is further heat treatable. Thus these high grades can be used to make major automotive parts and tools
that need to be very hard and highly wear resistant. Main
applications of high carbon steel are in making automotive
parts, tools, springs, cutter blade, band saws, arbors etc.
28
Carbon Steel
Properties, Comparison of Standards
and further Information
Guaranteed Properties
Grade
YS in MPa
TS in MPa
% E (80GL) min.
Hardness HRB
Guaranteed
r 90 min.
Guaranteed
Guaranteed
Guaranteed
D
240 max
275-370
28
65 max
-
DD
220 max
275-350
34
57 max
1.3
EDD
210 max
275-350
38
50 max
1.6
IFS
180 max
275-350
40
45 max
1.8
CRFH
-
-
-
90 max
-
C45
455 max
570 max
22
80 max
-
C55
480 max
590 max
20
82 max
-
C62
495 max
600 max
18
85 max
-
C80
510 max
640 max
16
92 max
-
YS in MPa
TS in MPa
% E (80GL)
Hardness HRB
r 90 min.
Typical
Typical
Typical
Typical
Typical Properties
Grade
D
220
320
38
55
-
DD
200
300
40
52
1.3
EDD
190
295
42
45
1.6
IFS
175
290
45
40
1.8
CRFH
-
-
-
85
-
C45
320
410
24
75
-
C55
360
470
22
78
-
C62
370
480
20
80
-
C80
420
520
18
85
-
Chemical Composition
Grade
Chemical Composition ( % element )
C
Mn
Si
S
Annealed hardness
(HV5max)
CR-“Hard”
(HV5max)
C45
0.42 - 0.50
0.60 - 0.90
0.10 - 0.35
0.030 max
160
170 - 230
C55
0.50 - 0.60
0.50 - 0.90
0.10 - 0.35
0.030 max
165
180 - 240
C62
0.57 - 0.67
0.60 - 0.90
0.10 - 0.35
0.030 max
170
210 - 260
C80
0.75 - 0.85
0.60 - 0.90
0.10 - 0.35
0.030 max
190
220 - 270
29
Supply Condition for Medium & High Carbon Steel
Variables
Remarks
Condition
Spheriodised
Thickness
0.30 mm to 2 mm
Width
50 mm to 1015/1260 mm
Surface
Bright Ra 0.60 Microns max
Form
Coil (ID 508 ± 20 mm)
Thickness above 2 mm upon enquiry
Comparison of Standards
Comparison with standards
ThyssenKrupp
Electrical Steel India
IS513 1994
JIS G3141 1994
EN 10130
DIN 1623PART 1
BS 1449
ASTM
ISO 3574 1999
D
D
SPCC
FePO1
ST - 12
CR4
A366
CR2
DD
DD
SPCD
FePO3
ST - 13
CR3
-
CR3
EDD
EDD
SPCEN
FePO4
ST - 14
CR2
A620
CR4
IFS
IFS
-
FePO6
ST - 15
CR1
-
CR5
IS7226 1974
IS2507
JIS 3311
SAE / AISI
DIN
-
-
C45
-
45C6
S45CM
1045
CR45
-
-
C55
C55
55C6
S55CM
1055
CR55
-
-
C80
C80
50C6
S75CM
1080
CR75
-
-
C60
-
60C6
S60CM
1060
CR60
-
-
C62
-
62C6
S60CM
1062
CR60
-
-
ThyssenKrupp
Electrical Steel India
Dimensions and Tolerances
Thickness
Specified Thickness (mm)
Above
Upto
Tolerance for Thickness (mm)
Upto 650 mm
Over 650 mm
0.14
0.40
± 0.025
± 0.03
0.41
0.80
± 0.03
± 0.04
0.81
1.50
± 0.04
± 0.05
1.51
2.50
± 0.05
± 0.06
2.51
3.15
± 0.06
± 0.07
Width
Specified Width (mm)
Tolerance for Width (mm)
Above
Upto
0.14 - 0.40
0.41 - 1.60
1.61 - 3.15
100
250
± 0.15
± 0.2
± 0.25
251
630
± 0.2
± 0.25
± 0.3
631
1270
± 0.4
± 0.5
± 0.5
Length
For all length from 1000 - 4000 mm, Tolerance is + 3.0 mm/- 0.0 mm
30
Stampings
As a part of continuous efforts to provide value added products to customers, ThyssenKrupp Electrical Steel started
production of stampings. With proven superior quality of
steel as starting material and uncompromised investment of
energy, knowledge and resource, ThyssenKrupp Electrical
Steel India becomes preferred choice for lamination supplies.
With a high speed progressive punching press, blanking
and notching presses ThyssenKrupp Electrical Steel India
can supply laminations for a wide range of applications such
as pumps, power tools, appliances, small transformers,
ballasts, motors, alternators, hydro and turbo generators,
wind generators and so on (with external diameter up to
1200 mm). With technological knowhow of steel production,
close tie up with countries major tool makers and dedicated
team of application engineers, ThyssenKrupp Electrical Steel
India becomes ideal partner for customers looking for single
partner for new projects from design stage up to volume production for loose or interlocked laminations. ThyssenKrupp
Electrical Steel India offers distinct logistical advantages with
in-house steel availability, carefully managed tools & insert
inventories and well spread sales & distribution network
adding high service value for the customers.
Quality
ThyssenKrupp Electrical Steel offers unmatched quality
standard both in terms of magnetic & dimensional properties. Stampings are designed for high durability and
dimensional accuracy. These pass through various stringent
quality tests before being dispatched to our clients.
Standard product
In addition to offer of customized stampings ThyssenKrupp
Electrical Steel India also offers standard E&I stamping
products. At present these are offered in three different E&I
types Type 16, Type 43 & Type 8 available in various grades
as per customer’s requirement. The lamination meets the
requirements of power, electric and electronic industries
spread across the country.
Packing
Standard E&I stampings are packed in 3 ply corrugated boxes
having 250 GSM paper with outer ply white in color. High
quality of boxes used to safeguard material during transportation. Stamping packing can be customized depending
upon need of customer.
31
Dimensions and Tolerances for E&I Laminations
Dimensions and Tolerances for E&I Laminations
Sr.No.
Parameters
1
Size
2
E&I
Laminations
Dimensions
Type 16
0.50 x 114.3 mm
Type 8
0.50 x 184.50 mm
Type 43
0.50 x 152.40 mm
As per Drawing - All dimensions are in mm.
General tolerances on each dimensions is ± 0.030 mm.
3
Burr Level
0.050 mm max
0.050 mm max
0.050 mm max
4
Laminations
Coating Types
Available in C3, C5, C6
Type of coating
Available in C3, C5, C6
Type of coating
Available in C3, C5, C6
Type of coating
5
Coating properties
As per the annexure
As per the annexure
As per annexure
6
Stacking Factor
> 95 %
> 95 %
> 95 %
25.400
Type 8
12.700
Type 16
12.700
158.100
12.700
184.500
41.450
50.800
41.450
25.400
120.700
25.400
25.400
Type 43
12.700
Ø 8.520 +/- 0.05,4 HOLES
12.700
158.100
184.500
NOTE:
* ALL DIMENSIONS ARE IN MILLIMETERS.
12.700
32
Packing
The type of packaging depends on the means of
transportation (truck, rail, ship), the duration of transit
and the climatic conditions during transit. Vertical-eye
coils of wide and narrow strip are supplied on a pallet.
Horizontal-eye coils can be supplied with or without a
pallet.
Wider Coil Packing (Eye Horizontal)
Pallets
The Pallets are adapted to the weight and external
dimensions of the packaging unit and are suitable for
both crane and forklift handling.
PE sheets
The PE sheets provides protection against dirt and
moisture, is environmentally friendly.
VCI paper
By vaporization of VCI molecules, laminated VCI paper
prevents corrosion due to condensation.
Packaging components
Packaging components like caps, edge protection
rings, wrapping prevents mechanical damage.
The components can be disposed of as scrap.
Steel strapping
Steel strapping is used to fasten the coils to the Pallets.
Wider Coil Packing (Eye Vertical)
Slit Coil Packing (Eye Vertical)
33
Recommended storage conditions
All our products are packed in accordance with our standard
packing or as per customer requirements, which are agreed in
orders.
- Our products should be stored indoors, protected from
rain, snow, dust, moisture & corroding agents (smoke,
steam, acid & lye vapours, chlorine, ammonia, etc.)
- Warehouses should be protected against temperature &
humidity changes. The minimum & maximum temperatures should be + 5 deg °C and 40 deg °C respectively,
while relative humidity inside should not be higher than
65 %
- While stacking the coils, care should be taken to avoid
heavy load to the bottom coils
- Adequate wedge protection to be provided in order to avoid
rolling of coils
- Once after opening the packing, the material should be
consumed at the earliest, since the protection given by the
packing material is no longer effective
Special recommendations for Electrical Steel
- Since, electrical steel is stress sensitive, high stress on
the material during handling & storage may deteriorate the
magnetic properties
- It is strongly advised that all coils without pallets are stored
in one high storage only
- In case of coil with pallets, two-high storage is acceptable
with proper handling
34
Sales Network
ThyssenKrupp Electrical Steel India is strategically located at Western coast near to India‘s biggest business hub Mumbai.
With its state of art plant at Nashik, ThyssenKrupp Electrical Steel India sales activities are widely spread throughout the
country. Its 8 sales offices are located closed to customers providing unmatched service and attention.
Works, HO & Warehouse
Sales Office
35
Editor
ThyssenKrupp Electrical Steel GmbH
Kurt-Schumacher-Str. 95
45881 Gelsenkirchen
Germany
info.electricalsteel@thyssenkrupp.com
www.thyssenkrupp-electrical-steel.com
Copyright
ThyssenKrupp Electrical Steel GmbH
The given values serve only as guidelines. We do
not guarantee specific properties without a written
agreement.
PowerCore™ is a registered brand name of
ThyssenKrupp Electrical Steel.
Design
GK Marketing Service GmbH
Essen, Germany
www.gk-mas.de
Printed by
ThyssenKrupp Printmedia GmbH
Duisburg, Germany
www.thyssenkrupp-printmedia.com
Pictures courtesy of
Alstom Power: Cover / page 25, E.g. Photo by
Bryon Paul McCartney / PhotoWorks 312
Picture copyright S. Hanusch, 2010: Cover
Used under license of Shutterstock.de
Siemens AG: Cover, page 21
Thomas Rauen: Page 3, 10, 11, 13, 17, 28, 30
www.atelier-rauen.de
Subject to alteration • SE-ES • EN • 09/2012
ThyssenKrupp Electrical Steel India Private Limited
Village Wadivarhe, Taluka Igatpuri, District Nashik
Maharashtra - 422 403, India
Phone: +91 2553 225182-89
Fax: +91 2553 225281
Marketing.esindia@thyssenkrupp.com
www.tkesindia.com
Postal Adress: P.O. Box No. 31, Nashik GPO - 422 001