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Japan JIS STH12 高压气瓶用无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STH12 / STH 12
Category Grade Standard Region/Area Standard Content
Metals STH 12 JIS G3429 Japan 高压气瓶用无缝钢管

Chemical composition(mass fraction)(wt.%) of the STH 12

Element Min Max Similar

Mechanical Properties of steel grade STH 12

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)
152 (≥) 242 (≥) 13 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade STH 12

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
11 - -     0.13 -  
623 631 - 32.3 422   -  
938 - 34 31.2   414 132

Heat Treatment of steel grade STH 12

Heat treated : 1865°C - 1993°C

Technological Curves of steel grade STH 12

Cross Reference Table (Equivalent Grade) of STH 12

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