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A213 Grade 20

America ASTM A213Grade20 无缝铁素体和奥氏体合金钢锅炉、过热器和换热器管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A213Grade20 / A213 Grade 20
Category Grade Standard Region/Area Standard Content
Metals A213 Grade 20 ASTM A213/A213M America 无缝铁素体和奥氏体合金钢锅炉、过热器和换热器管

Chemical composition(mass fraction)(wt.%) of the A213 Grade 20

Element Min Max Similar
C - 0.0700 -
Mn - 2.0000 -
P - 0.0450 -
S - 0.0350 -
Si - 1.0000 -
Ni 32.0000 38.0000 -
Cr 19.0000 21.0000 -
Mo 2.0000 3.0000 -
Cu 3.0000 4.0000 -
Nb+Ta - 1.0000 -

Mechanical Properties of steel grade A213 Grade 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)
397 (≥) 661 (≥) 23 42 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade A213 Grade 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
42 - -     0.34 -  
136 394 - 23.3 323   -  
489 - 32 12.2   422 144

Heat Treatment of steel grade A213 Grade 20

Heat treated : 1924°C - 1934°C

Technological Curves of steel grade A213 Grade 20

Cross Reference Table (Equivalent Grade) of A213 Grade 20

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