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Japan JIS STBA20 锅炉和热交换器用合金钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STBA20 / STBA 20
Category Grade Standard Region/Area Standard Content
Metals STBA 20 JIS G3462 Japan 锅炉和热交换器用合金钢管

Chemical composition(mass fraction)(wt.%) of the STBA 20

Element Min Max Similar

Mechanical Properties of steel grade STBA 20

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)
655 (≥) 497 (≥) 23 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade STBA 20

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
21 - -     0.42 -  
842 914 - 31.3 244   -  
278 - 31 22.2   343 322

Heat Treatment of steel grade STBA 20

Heat treated : 1498°C - 1356°C

Technological Curves of steel grade STBA 20

Cross Reference Table (Equivalent Grade) of STBA 20

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