Product Manual
For LiteSteel beam
®
Corrosion
Protection
Brilliance.
LiteSteel beam
General
Information
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
Compared to new LiteSteel beam, hot rolled
structurals just don’t cut it.
LiteSteel beam (LSB) from LiteSteel Technologies is on average 40% lighter than
traditional hot rolled structural steel beams of equivalent performance. It can be
lifted and carried like a timber beam. It can also be cut, nailed, screwed and drilled
on site, using professional power tools. Fit the recommended saw blades, bits,
screws and nails, and installation is easy. It also makes connections to timber
components simple. In fact the same galvanised steel brackets used for structural
timber can be used for connections to LSB. Pryda’s* range of punched strapping,
triple grips, unities, pergola angles, joist hangers and I-joist hangers are all suitable.
These methods of connection are usually far more convenient and efficient
than welding, which is often the only option available with hot rolled structural
steel beams. However, if required, LSB is easy to weld using Manual Metal, Gas
Metal or Flux Cored Arc Welding. So, as well as benefits in weight and strength,
LSB offers unprecedented on-site flexibility.
Weigh up the total installed costs of the
beams you specify.
LSB can give your building projects a significant time and cost advantage
compared to hot rolled structural steel beams.
Corrosion
Protection
Brilliance.
That’s not a boast we make lightly. Only after substantial investment in the new
patented cold forming process and corroborating research into LSB’s properties
by the Department of Civil Engineering at the University of Sydney, and the
Queensland University of Technology would we make such a claim.
In short, we have created a lighter structural beam with the strength of steel
that is practically as easy to use as timber.
LSB delivers more structural performance in terms of load carrying capacity,
bending moment and deflection from the available steel.
April 2008
Page 1
The innovative cold forming process gives LSB a unique profile with a flat,
thin web and two hollow flanges, resulting in a high level of torsional rigidity and
structural strength. It is made from a single strip of DuoSteel™ (380/450 grade)
using patented simultaneous dual electric resistance welding technology.
Corrosion protection brilliance with AZ+.
LiteSteel beam AZ+ sections are supplied with an Aluminium-Zinc alloy protective
coating. AZ+ provides significantly higher protection against the formation of red
rust compared to plain galvanised coatings of the same coating mass.
If you’ve built with laminated timber beams,
you know the drill.
Using a professional hand held power drill, you can now easily drill through structural
steel beams, making it easy to attach brackets, bolts and other components.
A hand held circular saw with a ferrous metal cutting saw blade can cut
through LSB as easily as cutting through timber. Using a carbide tipped hole
saw, you can cut holes in the flat web of LSB to run services through. This can
be done after the beams have been installed so you can pass services through
LSB exactly where you need to. You just don’t have that flexibility on site with
hot rolled structural steel beams. Self-drilling, self-tapping screws are the most
versatile fastener for connecting brackets and other components to LSB on site.
Teks® screws that are suitable include the Buildex® Teks Hexagon Head no Seal,
Buildex Teks Wafer Head, Buildex Super Teks Series 500 Hex Head no Seal,
Buildex Wing Teks Countersunk Ribbed Head and Buildex Countersunk Teks.
Blind rivets can also be used to connect brackets to LSB. With a professional
pneumatic nail gun, you can also nail timber and other building products to
LSB up to 2 mm in thickness.
See the Lite.
While LSB is revolutionary, it doesn’t require any new training, tools or radical
building methods to use. You can use it in place of other structural beams,
timber or steel. You can install it and work with it like you would with a timber
beam on site. If required, LSB can also be welded.
Choosing LSB can give you a total installed cost advantage over hot rolled
structural steel beams. While LSB is set to make its biggest impact in the
residential construction sector, it can also deliver significant advantages in
commercial construction. With any project, when you build at the speed of
Lite, the total installed cost of your beams is lower.
LiteSteel beam
Contents
Section
Page
LiteSteel beam DuoSteel – Specifications
3
General
3
Product Manual
For LiteSteel® beam
Properties of Steel
3
Mechanical Properties
3
Surface Coating – New AZ+
4
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
Coatings Compared
4
Painting Guidelines
5
Material Compatibility
5
Storage and Handling
5
Standard Lengths
6
Welding Information
6
Welding Safety
6
End Colour Coding Chart
6
Tolerances
7
Manufacturing Process
8
Dimensions and Section Properties
9
Mass and Bundling
Corrosion
Protection
Brilliance.
April 2008
Page 2
LiteSteel beam.
With the corrosion protection
brilliance of AZ+.
9
References, Specifications and Standards
10
Notations and Abbreviations
10
Along with its revolutionary on-site flexibility, LiteSteel beam now
gives you the added peace of mind of a brilliant corrosion protection
coating. AZ+ is an aluminium and zinc alloy that provides a level of
atmospheric corrosion protection that is superior to ordinary zinc
coatings of the same mass. AZ+ takes corrosion protection against
the formation of red rust to new levels, a significant advantage
when you’re building in Australia’s harsh climatic environments.
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
General
Properties of Steel
LiteSteel beam is manufactured by Australian Tube Mills (ATM) to an in-house
specification from a steel which is the most appropriate for the forming process,
welding and grade requirements. The specification details required by structural
engineers are outlined in this part of the publication. Compliance with this
specification (ATM – 0402 – LiteSteel beam Specification) is controlled by
the ATM Quality Assurance Procedures.
The properties of steel adopted in this publication are shown in the table below.
Other properties such as Poisson’s Ratio and Coefficient of Thermal Expansion
are also listed.
Being a cold-formed steel product, LSB must comply with Section 1.5 of
AS/NZS 4600 which specifies the requirements for structural members or steel
used in manufacturing. The steel is not an applicable steel in accordance with
Clause 1.5.1.1(a) of AS/NZS 4600, but it is accepted in accordance with Clause
1.5.1.1(b) based on the average ratios of tensile strength to yield stress and
elongation which satisfy Clause 1.5.1.4.
The designation for the LSB is illustrated in the following example:
250 × 75 × 3.0 LSB
Where
250
= depth (mm)
75
= flange width (mm)
3.0
LSB = LiteSteel beam
Corrosion
Protection
Brilliance.
April 2008
Page 3
= thickness (mm)
75
3.0
250
Property
Symbol
Value
Young’s Modulus of Elasticity
E
200 × 103 MPa
Shear Modulus of Elasticity
G
80 × 103 MPa
Density
ρ
7850 kg/m3
Poisson’s Ratio
ν
0.25
Coefficient of Thermal Expansion
αT
11.7 × 10-6 per °C
Mechanical Properties
The DuoSteel grade LiteSteel beam is manufactured from a base steel which
has a minimum yield stress fy = 380 MPa and a tensile strength fu = 490 MPa.
The cold-forming process enhances the yield stress and tensile strength of the
flanges of the LSB in the same way it does for the rectangular hollow sections,
producing a formed section which complies with the following requirements:
Location
Minimum Yield Stress
fy
MPa
Minimum Tensile Strength
fu
MPa
Minimum Elongation as a
proportion of Gauge Length of
5.65 So
%
Web
380
490
14
Flanges
450
500
14
These values are monitored by testing in accordance with AS 1391.
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
Corrosion
Protection
Brilliance.
April 2008
Page 4
Surface Coating – New AZ+
Coatings Compared
LiteSteel beam AZ+ hollow flange channels are supplied with a 55% AluminiumZinc alloy protective coating which provides significantly greater protection against
atmospheric corrosion than galvanised coatings of the same coating mass.
Research has shown that LiteSteel beam with AZ+ is ideal for external use
in moderate environments without the need for a painted top coat. Other
pre-galvanised coatings simply don’t make the grade, with expensive paints
required to achieve the corrosion protection required by BCA guidelines.
LSB AZ+ sections 1.6 and 2.0 mm thick are manufactured from AZ150 coated
steel coil, and 2.5 and 3.0 mm thick sections are manufactured from AZ120
coated steel coil. The pre-coated steel coil is manufactured in accordance with
JIS G 3321 Hot-dip 55% aluminium-zinc alloy coated steel sheets and coils. The
coating in the external weld zone is restored to the same level of protection as the
original coating by the application of aluminium and zinc hot metal sprays. Using
pre-coated strip ensures that the inside surfaces of the LSB flanges have the
same corrosion protection as the external surfaces.
Comparison and Suitability of Protective Coatings:
Coating
Coating Class
3.0
AZ120
2.5
AZ120
2.0
AZ150
1.6
AZ150
Severe Environment
Within 1 km from breaking surf,
or within 100 m from salt water
not subject to breaking surf,
or heavy industrial areas
Internal
External
Internal
Hot Dip Galvanised
(post manufacture)
Z200
(100 g/m2 per side)
Prime Painted
External
Paint Top Coat
Required
Suppliers
Recommendation
LSB AZ+
Unprotected surfaces that have been cut or drilled require re-coating with
a zinc-rich paint application to maintain protection. Zinc-rich paints should
conform to AS/NZS 375001: Paints for steel structures – Organic zinc-rich primer.
Best results can be achieved with single component or multi component epoxy
zinc-rich paints applied to a minimum 100 micron coating thickness.
LSB Thickness (mm)
Moderate Environment
More than 1 km from breaking surf,
or more than 100 m from salt water
not subject to breaking surf,
or non-heavy industrial areas
Paint Top Coat
Required
Paint Top Coat
Required
Paint Top Coat
Required
Paint Top Coat
Required
Notes:
1. ‘ ' means that the protective coating satisfies the requirements of Table 3.4.4.2
of the BCA Volume Two.
2. ‘Paint Top Coat Required’ means that a paint top coat treatment is needed to satisfy
the requirements of Table 3.4.4.2 of the BCA Volume Two.
3. ‘Prime Painted’ refers to standard water based EnviroKote paint primer.
4. The comparative performance of the AZ+ coating with the other coatings is
obtained from the following references:
i) Smorgon Steel Reinforcing, Sunshine Laboratory (2007), “Test Report No. TR07-01
(including NATA Endorsed Test Certificate 06N001)”, Victoria, Australia, 10 January 2007.
ii) Townsend, H. E. and Borzillo, A. R. (1997), “55% Al-Zn Alloy Coated Sheet Steel:
The Versatile, Long Lasting Building Panel Steel”, 5th International Conference on
Zinc Coated Steel Sheet, Birmingham, England, 12–13 June 1997.
5. The distances listed in this table defining moderate and severe environments are minimum
distances and should be used as a guide only. The appropriate distance from breaking surf
or from salt water not subject to breaking surf depends on regional factors, and may be
significantly larger. In some locations, the acceptable distance from breaking surf could extend
as far as 10 to 50 km inland. Local factors such as prevailing winds, topography, shielding
by other buildings and trees, and exposure to rain will also influence the classification of the
exposure environment. The nature of a structure and the design details of that structure may
also have a significant affect on the susceptibility of individual members to corrosion. AZ+ is not
recommended for use in non-sealed decks and verandahs within the splash zone of swimming
pools. If you are uncertain as to the suitability of a protective coating for your intended application,
please refer to AS/NZS 2312. As a guide, AZ+ is considered to last 3 to 4 times longer than
galvanised coatings of equal coating mass under the same exposure conditions.
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
Painting Guidelines
For aesthetic applications or more corrosive environments LSB AZ+ can be
painted. For best results the surface should be prepared with an etch primer
or galvanized metal primer. Water based acrylic primers and self-priming paints
are not suitable for direct painting on the AZ+ surface. Products successfully
tested include:
PPG Galv Grip Acrylic
PPG Icoat Industrial Etch Primer
In exposed applications, the LSB AZ+ coating may darken as a result of the
passive barrier protection of the aluminium. The darkening will not affect the
coating performance. To avoid darkening the product should be painted
before exposure.
Material Compatibility
Fastener and bracket materials should be selected to provide the same longterm durability exhibited by LSB AZ+. The best fastener recommendations are
available from your supplier or fastener manufacturer.
LSB AZ+ should not be used in direct contact with the following:
Lead
Copper and brass
Corrosion
Protection
Brilliance.
April 2008
Page 5
Green / wet timber
CCA treated timber
Graphite (e.g.: builders’ markers)
Run-off from copper components onto LSB AZ+ should be avoided, as corrosion
can be greatly accelerated. Direct contact with alkaline and acidic environments
such as curing concrete, acidic or alkaline soils, animal waste and acids used for
washing brickwork should also be avoided.
Components compatible with LSB AZ+ include galvanized sheet steel, plastics,
and other aluminium and zinc coated products either painted or unpainted.
Bare galvanized components are also compatible, but a coating class such
as Z600 or greater is needed in order to match the durability of LSB AZ+.
For sealing the hollow flanges, neutral cure silicone sealants should be used.
Storage and Handling
As with galvanized or painted steel products, bundles of LiteSteel beam AZ+ must
be kept dry during transport. Following transport, material should be covered and
stored off the ground, at a slight angle, to prevent water or condensation from
being trapped between adjacent surfaces.
If bundles become wet, beams should be separated as soon as possible,
wiped with a clean cloth and then placed apart to allow air circulation.
While LiteSteel beam AZ+ is more resistant to wet storage staining than
galvanized beams, staining may still occur. In its early stages, storage staining
appears as a white stain, similar to the stain that forms on galvanized sheet.
After prolonged exposure to trapped moisture the coating turns grey to black.
To preserve the AZ+ surface, handling of beams should only be carried out using
dry gloves. Avoid sliding beams over rough surfaces or each other.
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
Standard Lengths
Welding Information
All LSB sizes listed in the tables are readily available from authorised LSB
distribution outlets in standard lengths. However, the availability should be
checked for large quantities of individual sizes and for non-standard lengths.
The LSB can be readily welded using appropriate arc welding processes.
The design of welded connections for the LSB must comply with Section 5.2
of AS/NZS 4600.
LSB AZ+ Section
Dimensions
Length Availability
kg/m
mm
mm
mm
MMAW (Manual Metal Arc Welding)
AS 1553.1
E48XX
480
300 × 75 × 3.0 LSB
14.5
120
300
75
3.0
GMAW (Gas Metal Arc Welding)
AS 2717.1
W50X
480
2.5 LSB
12.2
120
300
75
2.5
300 × 60 × 2.0 LSB
8.80
150
300
60
2.0
FCAW (Flux Cored Arc Welding)
AS 2203.1
W50X
480
250 × 75 × 3.0 LSB
13.3
120
250
75
3.0
2.5 LSB
11.2
120
250
75
2.5
250 × 60 × 2.0 LSB
8.00
150
250
60
2.0
200 × 60 × 2.5 LSB
8.86
120
200
60
2.5
2.0 LSB
7.21
150
200
60
2.0
200 × 45 × 1.6 LSB
4.95
150
200
45
1.6
150 × 45 × 2.0 LSB
5.31
150
150
45
2.0
1.6 LSB
4.32
150
150
45
1.6
d
bf
t
mm
mm
mm
Mass
Height
Width
Thickness
8.0
12.0
13.5
Welding Process
Australian Standard
Consumables
Nominal Weld Tensile
Strength fuw (MPa)
m
m
m
These consumables are also acceptable and commonly used for welding to
Grade 300 Angles and Flats and to Grade 250 Plate.
Welding Safety
The full range of LSB sections is summarised in the table below. Sections can be
ordered in non-standard lengths subject to minimum order requirements and mill
rolling schedules.
Corrosion
Protection
Brilliance.
The following welding consumables are suitable for the DuoSteel grade LSB:
AZ+
Coating
Mass
g/sqm
Designation
Size
Non-Standard Lengths (m)
300 × 75
300 × 60
250 × 75
250 × 60
200 × 60
6.0 to 15.0
200 × 45
150 × 45
6.0 to 15.0
Notes: 1.Standard lengths may vary in some states. Please check with your local supplier
when ordering.
Weld fume monitoring tests conducted on the LSB AZ+ coating indicate that
selected metal particulate concentrations were below the respective exposure
standards for each particular metalloid contaminant. Measured ozone, nitric
oxide, carbon monoxide and nitrogen dioxide concentrations were also well
below the respective exposure standards. Unless extended and continuous
welding periods are anticipated, no further protection other than standard welding
personal protective equipment (PPE) would be required to control zinc exposures
under normal operating conditions. Welding in confined spaces or other spaces
with poor general ventilation should be avoided unless appropriate controls
(including supplied air) can be instituted. Those workers using an respiratory
protective device (RPD) must be trained in its selection, use, and maintenance.
All tests were conducted as part of an occupational hygiene survey by NSCA
on behalf of LiteSteel Technologies.
End Colour Coding Chart
1.6
April 2008
Page 6
Note:
Purple
2.0
Yellow
2.5
Pink
3.0
1. As per AS/NZS 4496:1997 Recommended practice for colour coding of steel products.
Blue
Length
Sweep or Camber
Length
v
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
bf
Tolerances
Parameter
Tolerance
Overall depth, d
± 0.01d
Flange width, bf (bf ≤ 50 mm)
(bf > 50 mm)
± 0.5 mm
± 0.015bf
Flange depth, df
± 1.0 mm
Thickness, t
+ 10%, – 5%
Mass
≥ 0.96 × specified mass
Flange outside radius, ro
1.5t to 4.0t
Web inside radius, riw
0.5t to 2.25t
df
bf
Tolerances for LiteSteel beam sections are as follows:
ao
v
riw
df
t
d
riw
Illustration
tbf
d
ro
d
riw
ro
Parameter
Tolerance
ro
ro
ao
Illustration
ro
df
df
Single flange out-of-square
df
a1 or ao ≤ 0.04bf
a1
ro
Two flanges out-of-square
a1 + ao ≤ 0.06bf
a0
a1
a0
a1
Sweep or Camber
Sweep or Camber
Length
∆f
Flange flatness
∆f
∆f ≤ 0.01bf
v
ao
∆w
∆f
∆w
∆f
bf
∆f
∆f
∆f
∆f
bf
bf
bf
bf
v
bf
a1
ao
a1
Page 7
d-2df
∆w
v
April 2008
bf
∆w
∆w ≤ (d – 2df) / 150
d-2df
ao
bf
d-2df
Web flatness
Corrosion
Protection
Brilliance.
bf
d-2df
Length
v≤2
mm + 0.5 mm/m
length
bf
a1
df
≤ specified length / 500
bf
aa1
1
a0
ro
ro
bf
a1
a0
Length
Twist
bf
a1
ao
ro
t
bf
v
Sweep or Camber
Straightness
v
ao
a0
a1
a0
bf
a1
a1 bf
bf
a0
a1
d-2df
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
Manufacturing Process
LiteSteel beam sections are manufactured by the same process and on mills
similar to those used to manufacture circular, square and rectangular hollow
sections. The difference in the mills relates to the shape of the LSB and the
patented process of simultaneously producing two complete penetration butt
welds to close the hollow flanges during the forming process.
The manufacturing process begins by feeding a single strip of steel through
Uncoiling
Levelling
Edge Trimming
and Slitting
a series of forming rolls which folds outer edges of the strip to form hollow
sections, presenting the free edges to the ends of the web portion ready for
welding. The flanges are then fully welded using the Dual Electric Resistance
Welding (DERW) process.
The protective coating at the weld is then reinstated with a hot metal spray of
aluminium and zinc. After the welds are checked using non-destructive testing
(NDT), the section is sized and shaped to the final dimensions before being cut to
length and bundled. See diagram below.
Recoiling
Shear
Uncoiling
Sizing and
Shaping Rolls
Electronically
Controlled Cut-off Saw
Cold Forming Roll Sets
Butt Weld Joining
Cooling Trough
Welding, Scarfing and Aluminium Zinc
Spray Reinstatement
Computerised Bundling
Warehouse Crane
Corrosion
Protection
Brilliance.
April 2008
Page 8
Ferromagnetic Analysis
System Testing
Pre Cleaning
Run Out Conveyors
Undercover Warehouse Storage
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
Dimensions and Section Properties
Dimensions
Designation
bf10
Section Properties
Coated
Mass
Gross
Section
Area
External
Surface Area
About x-axis
y
Torsion Warping
Constant Constant
About y-axis
L
per m
per m
per t
Ag
Ix
Zx
rx
Iy
ZyL
ZyR
ry
J
Iw
kg/m
m2/m
m2/t
mm2
106mm4
103mm3
mm
106mm4
103mm3
103mm4
mm
103mm4
109mm6
300 × 75 × 3.0 LSB
14.5
0.877
60.3
1840
24.6
164
116
1.23
54.3
23.5
25.9
328
17.1
2.5 LSB
12.2
0.881
71.9
1550
20.8
138
116
1.06
46.6
20.3
26.2
286
14.7
300 × 60 × 2.0 LSB
8.80
0.825
93.4
1110
14.5
96.8
114
0.466
28.5
10.7
20.5
118
6.47
250 × 75 × 3.0 LSB
13.3
0.777
58.2
1690
15.9
127
96.9
1.16
47.1
23.0
26.2
328
11.1
Notes:
1. Steel grade DuoSteel (flange fyf = 450 MPa
and fuf = 500 MPa; web fyw = 380 MPa
and fuw = 490 MPa).
d
mm
bf
mm
t
mm
2.5 LSB
11.2
0.781
69.4
1420
13.4
107
97.2
0.998
40.5
19.8
26.5
286
9.58
250 × 60 × 2.0 LSB
8.00
0.725
90.2
1010
9.38
75.0
96.4
0.440
24.6
10.4
20.9
117
4.24
200 × 60 × 2.5 LSB
8.86
0.621
69.9
1120
6.74
67.4
77.5
0.490
24.9
12.1
20.9
138
3.00
2.0 LSB
7.21
0.625
86.4
910
5.50
55.0
77.7
0.408
20.7
10.1
21.2
117
2.51
200 × 45 × 1.6 LSB
4.95
0.568
114
624
3.67
36.7
76.8
0.150
11.5
4.68
15.5
39.1
0.923
150 × 45 × 2.0 LSB
5.31
0.465
87.3
670
2.26
30.1
58.1
0.163
11.0
5.38
15.6
45.8
0.560
1.6 LSB
4.32
0.468
108
544
1.84
24.6
58.2
0.136
9.20
4.51
15.8
39.0
0.469
t
d
x
x
R
y
2. Section properties are calculated in
accordance with AS/NZS 4600.
3. ZyL is for bending about the y-axis that
causes compression in the web “L”.
4. ZyR is for bending about the y-axis that
causes compression in the flange tips “R”.
Mass & Bundling Data AZ +
Dimensions
Designation
Corrosion
Protection
Brilliance.
April 2008
Page 9
d
bf
t
mm
mm
mm
Bundling
Bundle Configuration
8.0
12.0
13.5
W×H W×H W×H
Mass
Bundle Dimensions (mm)
8.0
W × H
12.0
W × H
13.5
W ×H
Lengths
per Bundle
8.0
12.0 13.5
Metres
per Bundle
8.0
Nominal
Mass
Mass per Bundle
tonnes
12.0
13.5
kg/m
m/t
150 × 45 × 1.6 LSB 4 7 4 7 4 7 334
329
334
329
334
329
28
28
28
224 336
378
4.32
232
0.97 1.45 1.63
8.0
12.0
13.5
2.0 LSB 4 7 4 7 4 7 334
329
334
329
334
329
28
28
28
224 336
378
5.31
188
1.19 1.78 2.01
200 × 45 × 1.6 LSB 4 6 4 6 4 6 434
280
434
280
434
280
24
24
24
192 288
324
4.95
202
0.95 1.43 1.60
200 × 60 × 2.0 LSB 4 4 4 4 4 4 444
248
444
248
444
248
16
16
16
128 192
216
7.21
139
0.92 1.38 1.56
2.5 LSB 4 3 4 3 4 3 444
188
444
188
444
188
12
12
12
96
144
162
8.86
113
0.85 1.28 1.44
250 × 60 × 2.0 LSB 2 6 2 6 2 6 272
372
272
372
272
372
12
12
12
96
144
162
8.00
125
0.77 1.15 1.30
250 × 75 × 2.5 LSB 2 4 2 4 2 4 277
310
277
310
277
310
8
8
8
64
96
108
11.2 89.1 0.72 1.08 1.21
3.0 LSB 2 4 2 4 2 4 277
312
277
312
277
312
8
8
8
64
96
108
13.3 75.1 0.85 1.28 1.44
300 × 60 × 2.0 LSB 2 6 2 6 2 6 322
372
322
372
322
372
12
12
12
96
144
162
8.80
300 × 75 × 2.5 LSB 2 4 2 4 2 4 327
310
327
310
327
310
8
8
8
64
96
108
12.2 81.8 0.78 1.17 1.32
3.0 LSB 2 4 2 4 2 4 327
312
327
312
327
312
8
8
8
64
96
108
14.5 68.9 0.93 1.39 1.57
114
0.85 1.27 1.43
LiteSteel beam
DuoSteel –
Specifications
Product Manual
For LiteSteel® beam
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank,
Queensland 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Web www.litesteelbeam.com.au
References, Specifications and Standards
Australian Standards
AS 1391
AS/NZS 1554.1
Structural steel welding – Welding of steel structures
AS/NZS 1554.7
Structural steel welding – Welding of sheet steel structures
AS/NZS 2717.1
Welding – Electrodes – Gas metal arc – Ferritic steel electrodes
AS/NZS 4496
Recommended practice for the colour coding of steel products
AS/NZS 4600
Cold-formed steel structures
AS/NZS 4855
Welding consumables – Covered electrodes for manual metal arc welding of non-alloy and fine grain steels – Classification
AS/NZS ISO 17632
Welding consumables – Tubular cored electrodes for gas shielded and non-shielded metal arc welding of non-alloy and fine grain steels – Classification
Australian Tube Mills Product Specifications
ATM 0402
Ag
ATM
April 2008
Page 10
LiteSteel beam
Notations and Abbreviations
Abbreviation
Corrosion
Protection
Brilliance.
Metallic materials – Tensile testing at ambient temperature
Joint Australian and New Zealand Standards
Definition
Notations and Abbreviations
Abbreviation
Definition
gross area of the cross-section
LST
LiteSteel Technologies
Australian Tube Mills
NDT
non-destructive testing
b
flat width of an element excluding radii
r
radius of gyration of the full, unreduced cross-section
bf
overall width of a flange
ri
inside bend radius
d
overall depth of the section
riw
inside bend radius of the web to flange junction
d1
depth of the flat portion of a web measured along the plane of the web
ro
outside bend radius of the flanges
df
overall depth of a flange
rx
radius of gyration of the cross-section about the major principal x-axis
E
Young’s modulus of elasticity
ry
radius of gyration of the cross-section about the minor principal y-axis
dual electric resistance welding
t
nominal base steel thickness of a section exclusive of coatings
fu
minimum tensile strength
Zx
elastic section modulus about the major principal x-axis
fuf
tensile strength of the flange used in design
Zy
elastic section modulus about the minor principal y-axis
fuw
tensile strength of the web used in design
ZyL
fy
yield stress
elastic section modulus about the minor principal y-axis,
calculated with the web in compression
fyw
yield stress of the web used in design
ZyR
elastic section modulus about the minor principal y-axis,
calculated with the flange tips in compression
αT
coefficient of thermal expansion
ν
Poisson’s ratio
ρ
density
DERW
103
G
shear modulus of elasticity (80 ×
J
torsion constant for the cross-section
Iw
warping constant for the cross section
Ix
second moment of area about the major principal x-axis
Iy
second moment of area about the minor principal y-axis
LSB
LiteSteel beam
MPa)
Note:
1. The Tables use L and Le in lieu of l and le (as used in AS/NZS 4600)
to avoid the confusion with the standard typeface used.
LiteSteel Technologies
ACN 113 101 054
PO Box 246 Sunnybank, QLD 4109 Australia
Telephone +61 1300 789 572
Facsimile +61 1300 789 368
Email lsb@litesteelbeam.com.au
Internet www.litesteelbeam.com.au
Available from:
Disclaimer – Whilst every care has been taken in the preparation of this
information, LiteSteel Technologies, and its agents accept no liability for
the accuracy of the information supplied. To the fullest extent permitted
by law, the company expressly disclaims all and any liability to any
person whether a purchaser of any product, or otherwise in respect of
anything done or omitted to be done and the consequences of anything
done or omitted to be done, by any such person in reliance, whether in
whole or in part upon the whole or any part of this publication.
The performance of the LSB AZ+ coating against corrosion only
applies to the undamaged coating and not to:
Unprotected cut surfaces (these areas require touch up with
zinc-rich paint to maintain protection);
Scratched or damaged product;
Product in contact with non-compatible alloys, treated timber
or other non-compatible materials.
Areas not subject to washing, with a potential for build-up of dirt and/
or which are constantly moist, will exhibit considerably higher corrosion
rates. Refer to the Australian corrosion standard for further information
of potential micro-climates and the affect on corrosion rates.
LiteSteel beam and LSB are registered trademarks, AZ+ and DuoSteel
are trademarks of LiteSteel Products Pty Ltd ACN 109 854 677 and
are used under licence in Australia by LiteSteel Technologies Pty Ltd
ACN 113 101 054. LiteSteel Technologies is a OneSteel Group Company.
Buildex® and Teks® are the registered trademarks of Illinois
Tool Works Inc., Chicago USA.
* Pryda is the registered trademark of ITW Australia Pty Ltd.
Product availability and other information – Always ensure
that you are using current information on the LSB product range.
The current version date of this and other LSB publications can
be obtained by referring to www.litesteelbeam.com.au or by
contacting LiteSteel Technologies on 1300 789 572.
© LiteSteel Technologies Pty Ltd April 2008.
0891