BÖHLER BIMETAL STRIP
BÖHLER-UDDEHOLM PRECISION STRIP
THE COMPANY
World Leader
BÖHLER-UDDEHOLM Precision Strip is
a 100% subsidiary of the Böhler-Uddeholm Group, with over 10,000 employees worldwide and an annual turnover
exceeding 1.5 billion Euro.
The group is listed on the stock exchange
and is internationally known to be one
of the most successful producers of special steels.
The Company – a part of the Precision
Strip Division – with its head office in
Böhlerwerk, Lower Austria, is the world
leader in the production of bimetal strip
for metal saws, rule die steel for the
leather and textile industry as well as
high-precision steel rules for the die cutting of packaging materials.
In addition cold-rolled special strip
steel with the highest requirements for
material properties, surface finish and
tolerances is produced.
The group guidelines are behind the
philosophy and strategy of BÖHLERUDDEHOLM Precision Strip. Important
statements of our company philosophy
include:
• We see ourselves globally as the
competent partner in our core business and always strive towards the
position of “Best in class”.
• The needs and requirements of our
customers build the guidelines of
our corporate way of thinking.
• We promote Quality and Service.
The qualification, motivation and
flexibility of our staff form the basis
thereof.
• Our obligation is to a clean environment.
SPECIALISTS
Our Strengths
Close to the Final Product
Customers benefit
Our company has specialised in the
processing of medium- and high-alloy
steels, focussing on special executions
of the following products:
We also offer strip steel profiles close to
the final shape, allowing our clients to
economise on further processing.
We see ourselves as problem solvers.
Our solutions aim at maximum customer
benefit.
•
•
•
•
Bimetal strip
Cutting, creasing and rotary rules
Rule die steel
Cold-rolled special strip steel
Beam welding equipment to join the high speed steel
and backing
Rolling mill to smooth the welding seam
Automatic setting of rolling mill
4
THE WORLD’S L ARGEST SUPPLIER OF BIMETAL STRIP FOR THE SAW INDUSTRY
Bimetal strip was first used in the manufacture of high quality
tools in the early 1970’s. The specialists of BÖHLER realised
soon the significance of these new compound materials.
A variety of high quality special steels are the basis of first
class raw material required for the manufacture of high-performance saws.
As a subsidiary of the world’s largest tool steel manufacturer,
the whole know-how of the BÖHLER-UDDEHOLM AG is also
available to the customers of BÖHLER-UDDEHOLM Precision
Strip.
New developments in metallurgy are analyzed in-depth for
their suitability for its application, as well as new production
technology.
The continuous development of these activities made bimetal
strip from the “Ybbs valley” a huge success in all parts of the
world and BÖHLER-UDDEHOLM Precision Strip the world’s
largest supplier of bimetal strip for the saw industry.
Direction Nuremberg
Passau
Linz
Direction Munich
Exit
AMSTETTEN
west
A1
Vienna
A1
B121
BÖHLERWERK
Rosenheim
Salzburg
WAIDHOFEN
a.d. YBBS
Innsbruck
Graz
Villach
Klagenfurt
5
SAWS FROM BÖHLER BIMETAL STRIP STEEL – THE OUTSTANDING SOLUTION
Bimetal strip is the ideal raw material for the manufacture of
superior high-performance saws.
Two different steel grades – high speed steel on the cutting
edge and “temper-resistant spring steel” for the backing –
are welded together in machine direction without the use of
filler metals.
BÖHLER-UDDEHOLM Precision Strip as the market leader is
committed to provide first class bimetal strip for their customers in the saw industry.
Through close co-operation and emphasis on our customer’s
needs and requirements we are highly recognised as troubleshooters among our international customers.
As BÖHLER does not manufacture saws itself, it is able to act
as an independent supplier of bimetal strip.
High quality manufacturing and the certification to the
international standard of ISO 9001 has enabled us to be
always one step above the competition. The market for
bimetal strip has grown consistently over the years and more
and more customers decided to rely on the high standards set
by BÖHLER bimetal strip.
BÖHLER bimetal strip is subject to accurate quality control
6
BÖHLER – A SYNONYM FOR STATE OF THE ART QUALITY
Through close co-operation with universities and research institutes it has been
possible to develop an automatic control mechanism which guarantees continual
and consistent high quality:
• An optimum durability of the welding seam due to the installation of
an automatic high precision guide
ensures an accurate joint of the high
speed steel and the backing during
the welding process.
• Easy to mill due to low hardness of
the weld seam.
• A weld without defects due to an
automatic identification and removal
process of all weld areas with nonconformity.
• In addition we offer bimetal strip with
minimal distortion and outstanding
heat treatment response.
• A high lifetime as a result of excellent
surface- and edge finish as well as
high quality backing.
High Speed Steel
High Speed Steel
Weld Seam
Weld Seam
Backing
Backing
Table of Contents:
BAND SAWS
page 8 - 9
JIG SAWS & RECIPROCATING SAWS
page 10-11
HAND HACKSAWS
page 12-13
HOLE SAWS & POWER HACKSAWS
page 14-15
GENERAL POINTS OF INTEREST
page 16-17
7
8
BIMETAL STRIP FOR BANDSAWS
High Speed Steel
BÖHLER Grade
S504
S500
S700
DIN
Mat. No.
AISI
C
[HS1-5-1-8]
[1.3299]
MATRIX II
0,73
HS2-9-1-8
1.3247
M42
1,09
HS10-4-3-10
1.3207
[M51]
1,26
Cr
Mo
V
W
Co
4,10
5,00
1,00
1,00
8,00
3,90
9,40
1,20
1,50
8,00
4,00
3,60
3,20
9,30
10,00
Typical Analysis
in [%]
Backing Material
BÖHLER Grade
B313
B552
DIN
Mat. No.
AISI
C
32CrMoV12
[1.2390]
—
0,34
—
[1.2791]
D6A
0,45
Cr
Mo
V
Ni
2,70
1,10
0,28
0,60
1,00
1,00
0,10
0,50
Typical Analysis
in [%]
Execution
Condition as supplied
High Speed Steel
Hardness
Weld Seam
Backing Material
Surface
Edge finish
Width
annealed
240 – 320 HV3
max. 400 HV3
(at S700 max. 430 HV3)
180 – 250 HV3
metalic bright, free from rolling defects, laps, deep scratches,
pits, etc. …
High Speed Steel edge rectangular,
corner radius max. 0,10 mm
Back edge rectangular, corner radius 0,10 – 0,20 mm
B ≤ 41,50 mm
± 0,050 mm
Straightness
B > 41,50 mm
± 0,070 mm
D ≤ 0,63 mm
± 0,020 mm
D ≤ 1,00 mm
± 0,025 mm
D ≤ 1,50 mm
± 0,030 mm
D ≤ 2,50 mm
± 0,035 mm
max. 1 µm/mm strip width
max. 0,020 mm at widths of ≤ 34,50 mm
max. 0,030 mm at widths of > 34,50 mm
deviation max. 1,25 mm per 1000 mm
Twist
max. 5° per metre
Thickness
Tolerances
Cross Camber
Wedge, Crown
Identification
High Speed Steel edge marked by ink-jet with details of order
9
10
BIMETAL STRIP FOR JIG SAW AND RECIPROCATING SAW BL ADES
High Speed Steel
BÖHLER Grade
S601
S504
S500
DIN
Mat. No.
AISI
C
HS6-5-2
1.3339
M2
0,85
[HS1-5-1-8]
[1.3299]
MATRIX II
0,73
HS2-9-1-8
1.3247
M42
1,09
Cr
Mo
V
W
Co
4,20
5,10
2,00
6,40
—
4,10
5,00
1,00
1,00
8,00
3,90
9,40
1,20
1,50
8,00
Typical Analysis
in [%]
Backing Material
BÖHLER Grade
B313
B552
DIN
Mat. No.
AISI
C
32CrMoV12
[1.2390]
—
0,34
—
[1.2791]
D6A
0,45
Cr
Mo
V
Ni
2,70
1,10
0,28
0,60
1,00
1,00
0,50
0,10
Typical Analysis
in [%]
Execution
Condition as supplied
High Speed Steel
Hardness
Weld Seam
max. 410 HV3
Backing Material
180 – 250 HV3
metalic bright, free from rolling defects, laps, deep scratches,
pits, etc. …
High Speed Steel edge rectangular,
corner radius max. 0,10 mm
Surface
Edge finish
Width
Back edge rectangular, corner radius 0,10 – 0,20 mm
(alternatively rounded)
+ 0 / - 0,150 mm
Cross Camber
Wedge, Crown
Straightness
D ≤ 1,00 mm
± 0,025 mm
D ≤ 1,50 mm
± 0,030 mm
D ≤ 2,50 mm
± 0,035 mm
max. 1 µm/mm strip width
max. 0,020 mm
deviation max. 1,25 mm per 1000 mm
Twist
max. 5° per metre
Thickness
Tolerances
annealed
240 – 320 HV3
Identification
High Speed Steel edge marked by ink-jet with details of order
11
12
BIMETAL STRIP FOR HAND HACKSAW BL ADES
High Speed Steel
BÖHLER Grade
S601
S504
DIN
Mat. No.
AISI
C
HS6-5-2
1.3339
M2
0,85
[HS1-5-1-8]
[1.3299]
MATRIX II
0,73
Cr
Mo
V
W
Co
4,20
5,10
2,00
6,40
—
4,10
5,00
1,00
1,00
8,00
Typical Analysis
in [%]
Backing Material
BÖHLER Grade
F550
B552
DIN
Mat. No.
AISI
C
50CrV4
1.8159
6150
0,50
—
[1.2791]
D6A
0,45
Cr
Mo
V
Ni
1,00
—
0,12
—
1,00
1,00
0,10
0,50
Typical Analysis
in [%]
Execution
Condition as supplied
High Speed Steel
Hardness
Weld Seam
max. 430 HV3
Backing Material
150 – 220 HV3
metalic bright, free from rolling defects, laps, deep scratches,
pits, etc. …
High Speed Steel edge rectangular,
corner radius max. 0,10 mm
Surface
Edge finish
Tolerances
annealed
240 – 300 HV3
Width
Back edge rectangular, corner radius 0,10 – 0,20 mm
± 0,050 mm
Thickness
Cross Camber
Wedge, Crown
Straightness
± 0,020 mm
max. 1 µm/mm strip width
max. 0,020 mm
deviation max. 1,25 mm per 1000 mm
Twist
max. 5° per metre
Identification
High Speed Steel edge marked by ink-jet with details of order
13
14
BIMETAL STRIP FOR HOLE SAWS AND POWER HACKSAW BL ADES
High Speed Steel
BÖHLER Grade
S622
S500
DIN
Mat. No.
AISI
C
HS6-6-2
1.3350
M3 Cl. 1
1,05
HS2-9-1-8
1.3247
M42
1,09
Cr
Mo
V
W
Co
4,10
6,00
2,40
6,40
—
3,90
9,40
1,20
1,50
8,00
Typical Analysis
in [%]
Backing Material
BÖHLER Grade
W326
B552
F550
DIN
Mat. No.
AISI
C
48CrMoV6-7
1.2323
—
0,45
—
[1.2791]
D6A
0,45
50CrV4
1.8159
6150
0,50
Cr
Mo
V
Ni
1,40
0,70
0,30
—
1,00
1,00
0,10
0,50
1,00
—
0,12
—
Typical Analysis
in [%]
Execution
Condition as supplied
High Speed Steel
Hardness
Weld Seam
max. 430 HV3
Backing Material
180 – 250 HV3
metalic bright, free from rolling defects, laps, deep scratches,
pits, etc. …
High Speed Steel edge rectangular,
corner radius max. 0,10 mm
Surface
Edge finish
Width
Back edge rectangular, corner radius 0,10 – 0,30 mm
± 0,100 mm
Cross Camber
Wedge, Crown
Straightness
D ≤ 1,50 mm
± 0,030 mm
D > 1,50 mm
± 0,035 mm
max. 2 µm/mm strip width
max. 0,035 mm
deviation max. 1,50 mm per 1000 mm
Twist
max. 5° per metre
Thickness
Tolerances
annealed
240 – 320 HV3
Identification
High Speed Steel edge marked by ink-jet with details of order
15
GENERAL INFORMATION
The heat treatment parameters for the
bimetal strip should be chosen with
regard to the high speed steel grade
involved. The heat treatment method
depends on the choice of the heat treatment unit:
Salt bath:
for individual heat treatment of handand power hacksaw blades, etc.
After heat treatment, the backing material exhibits the following average
hardness values:
Böhler Grade
F550 *)
B552
W326
B313
Hardness in HV3
~ 390
~ 480
~ 480
~ 510
*) not recommended for vacuum treatment
Continuous heat treatment:
for band saw blades, but also for handand hole saw blades
Should you have any particular questions, please do not hesitate to consult
our technical service staff.
Protective gas or vacuum
chamber furnaces:
for individual heat treatment
High speed steel grades
BÖHLER S601
BÖHLER S622
BÖHLER S504
BÖHLER S500
BÖHLER S700
Tungsten-molybdenum high speed steel with excellent toughness and cutting properties,
for a wide variety of applications.
Tungsten-molybdenum-vanadium high speed steel exhibiting excellent wear resistance.
Cobalt-molybdenum high speed steel with high ductility and good cutting capability.
Especially for machining of open profiles and tubes.
Cobalt-molybdenum high speed steel exhibiting high hardness, excellent cutting
properties, high red hardness and good toughness.
High grade, tungsten-molybdenum high speed steel, all-purpose grade, with optimum
cutting properties, wear resistance and red hardness.
Marking on the high speed steel edge
by ink-jet printer
Metallurgical laboratory test on the
structure of a high alloy steel
16
HEAT TREATMENT INSTRUCTIONS FOR BÖHLER HIGH SPEED STEEL GRADES
The information on the hardening and
tempering properties of the high speed
steels mentioned below is intended to
offer you some guidance in adjusting
the heat treatment cycles to the specific
requirements.
With respect to its production parameters, high speed steel exhibit a very
homogeneous and fine-grained structure, offering the condition for obtaining optimum cutting performance.
For obtaining high cutting hardness
and toughness we recommend at least
three tempering cycles.
S601
S622
S504
S500
S700
M2
M 3 Cl. 1
MATRIX II
M 42
M 51
Hardening temperature
[°C]
1200 – 1230 1)
1200 – 1230 1)
1140 – 1180 3)
1170 – 1200 4)
1200 – 1230 5)
Holding time on H.T.
40 – 60“
40 – 60“
40 – 50“
40 – 60“
40 – 60“
18 – 22
20 – 25
10 – 16
15 – 20
18 – 24
540 – 570
550 – 570
540 – 560
530 – 570
550 – 570
2x1
2–3x1
2–3x1
2–3x1
2–3x1
min. 820 2)
min. 850 2)
min. 800
min. 900 2)
min. 920
HT-Instructions
Achievable austenite grain size
[Snyder Graff]
Tempering temperature
[°C]
Tempering time
[hours]
Achievable hardness
[HV3]
BÖHLER
This requires that austenitizing conditions such as temperature and soaking
time are properly chosen and observed,
as well as that the necessary absence of
decarburization is ensured.
AISI
1) For good ductility choose lower hardening temperature, for good red hardness and wear resistance
choose higher hardening temperature.
4) For good ductility you can reduce the lower temperature. For high red hardness and wear resistance
choose higher temperature.
2) Is not valid for low hardening temperature and
high tempering temperature.
5) For best wear resistance and red hardness the higher temperature can be exceeded.
3) For good ductility lower temperature, for high red
hardness choose higher temperature.
17
QUALITY ASSURANCE
OUR TARGET
Quality Competence
Owing to more than 130 years experience in the converting of steel into components for high-grade final products
we understand the value of a good
partnership.
For us the first step towards an optimum
solution is the grasping of the customer’s special needs.
Quality is an essential part of our company culture and this is reflected in all
areas of our business activities.
Close relationships with the customer,
reliability and quick decision-making
are essential elements of our organisation.
Many of our innovations and the corresponding solutions to any special problem are further developed in a constant
manner to the benefit of our customers.
BÖHLER-UDDEHOLM Precision Strip
has the most up-to-date laboratory
facilities and testing technologies and is
of course certified to EN ISO 9001.
SOLVING OF PROBLEMS
YOUR REQUIREMENTS
Our Know-How
Our state of the art manufacturing technology and the know-how of our qualified
employees allow us to assist you in all technical aspects and help you to optimize
your products respectively.
Of course we offer this service for all strip steel products from our wide production
range.
BÖHLER-UDDEHOLM Precision Strip GmbH & Co KG · Waidhofner Str. 3 · A-3333 Böhlerwerk / AUSTRIA
Telefon: +43 (0) 74 42 / 600 - 29200 · Fax: +43 (0) 74 42 / 600 - 29215
E-Mail: saw@bu-strip.com · www.bohler-strip.com
© BÖHLER-UDDEHOLM Precision Strip GmbH & Co KG · 09-2005. Technical changes and all rights reserved.
STRIP STEEL TECHNOLOGY SINCE 1872