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China GB A30121 石油裂化用无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A30121 / A30121
Category Grade Standard Region/Area Standard Content
Metals A30121 GB 9948 China 石油裂化用无缝钢管

Chemical composition(mass fraction)(wt.%) of the A30121

Element Min Max Similar

Mechanical Properties of steel grade A30121

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)
862 (≥) 945 (≥) 41 11 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade A30121

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 - -     0.43 -  
551 898 - 12.3 423   -  
818 - 44 11.2   333 414

Heat Treatment of steel grade A30121

Heat treated : 1211°C - 1371°C

Technological Curves of steel grade A30121

Cross Reference Table (Equivalent Grade) of A30121

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