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STAM 340 G

Japan JIS STAM340G 汽车结构用电阻焊接碳素钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STAM340G / STAM 340 G
Category Grade Standard Region/Area Standard Content
Metals STAM 340 G JIS G3472 Japan 汽车结构用电阻焊接碳素钢管

Chemical composition(mass fraction)(wt.%) of the STAM 340 G

Element Min Max Similar
S - 0.0350 -
P - 0.0350 -
Mn - 0.6000 -
Si - 0.3500 -
C - 0.2000 -
Si - 0.3500 -
S - 0.0350 -
P - 0.0350 -
Other - - -
Mn - 0.6000 -
C - 0.2000 -

Mechanical Properties of steel grade STAM 340 G

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)
425 (≥) 266 (≥) 44 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade STAM 340 G

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
32 - -     0.22 -  
651 861 - 12.3 332   -  
574 - 21 42.2   321 222

Heat Treatment of steel grade STAM 340 G

Heat treated : 1189°C - 1593°C

Technological Curves of steel grade STAM 340 G

Cross Reference Table (Equivalent Grade) of STAM 340 G

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