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China 首钢Q/SG HC340LA 高强度低碳及低合金冷轧钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: HC340LA / HC340LA
Category Grade Standard Region/Area Standard Content
Metals HC340LA Q/SGZGS 326 China 高强度低碳及低合金冷轧钢板及钢带

Chemical composition(mass fraction)(wt.%) of the HC340LA

Element Min Max Similar
C - 0.1000 -
Si - 0.5000 -
Mn - 1.1000 -
P - 0.0250 -
S - 0.0250 -
Alt 0.0150 - -
Ti - 0.1500 -
Nb - 0.0900 -
C - 0.1000 -
Si - 0.5000 -
Mn - 1.0000 -
P - 0.0250 -
S - 0.0200 -
Alt 0.0150 - -
Ti - 0.1500 -
Nb - 0.0900 -

Mechanical Properties of steel grade HC340LA

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)
395 (≥) 762 (≥) 33 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade HC340LA

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
43 - -     0.24 -  
423 522 - 22.3 123   -  
518 - 11 41.2   244 122

Heat Treatment of steel grade HC340LA

Heat treated : 1339°C - 1512°C

Technological Curves of steel grade HC340LA

Cross Reference Table (Equivalent Grade) of HC340LA

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