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China GB LT04 热镀铅锡合金碳素钢冷轧薄钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: LT04 / LT04
Category Grade Standard Region/Area Standard Content
Metals LT04 GB/T 5065 China 热镀铅锡合金碳素钢冷轧薄钢板及钢带

Chemical composition(mass fraction)(wt.%) of the LT04

Element Min Max Similar
Cu - 0.1500 -
Ni - 0.1000 -
Cr - 0.0800 -
Al 0.0200 0.0700 -
S - 0.0250 -
P - 0.0200 -
Mn - 0.4000 -
Si - 0.0300 -
C - 0.0800 -

Mechanical Properties of steel grade LT04

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
859 (≥) 663 (≥) 12 12 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade LT04

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
13 - -     0.12 -  
786 411 - 41.3 242   -  
327 - 43 21.2   234 414

Heat Treatment of steel grade LT04

Heat treated : 1399°C - 1837°C

Technological Curves of steel grade LT04

Cross Reference Table (Equivalent Grade) of LT04

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