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STAM 540 H

Japan JIS STAM540H 汽车结构用电阻焊接碳素钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STAM540H / STAM 540 H
Category Grade Standard Region/Area Standard Content
Metals STAM 540 H JIS G3472 Japan 汽车结构用电阻焊接碳素钢管

Chemical composition(mass fraction)(wt.%) of the STAM 540 H

Element Min Max Similar
S - 0.0350 -
P - 0.0350 -
Mn 0.3000 1.0000 -
Si - 0.3500 -
C - 0.3000 -
Si - 0.3500 -
S - 0.0350 -
P - 0.0350 -
Other - - -
Mn 0.3000 1.0000 -
C - 0.3000 -

Mechanical Properties of steel grade STAM 540 H

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)
977 (≥) 197 (≥) 24 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade STAM 540 H

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
34 - -     0.31 -  
979 486 - 14.3 444   -  
276 - 33 33.2   413 141

Heat Treatment of steel grade STAM 540 H

Heat treated : 1719°C - 1381°C

Technological Curves of steel grade STAM 540 H

Cross Reference Table (Equivalent Grade) of STAM 540 H

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