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A409 S20400

America ASTM A409S20400 抗腐蚀或抗高温大口径焊接奥氏体不锈钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A409S20400 / A409 S20400
Category Grade Standard Region/Area Standard Content
Metals A409 S20400 ASTM A409/A409M America 抗腐蚀或抗高温大口径焊接奥氏体不锈钢管

Chemical composition(mass fraction)(wt.%) of the A409 S20400

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.4500 -
Ni 1.5000 3.0000 -
N 0.1500 0.3000 -
Mn 7.0000 9.0000 -
Cr 15.0000 17.0000 -
C - 0.0300 -

Mechanical Properties of steel grade A409 S20400

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)
475 (≥) 126 (≥) 44 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade A409 S20400

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
14 - -     0.32 -  
325 487 - 42.3 223   -  
327 - 44 33.2   213 214

Heat Treatment of steel grade A409 S20400

Heat treated : 1786°C - 1287°C

Technological Curves of steel grade A409 S20400

Cross Reference Table (Equivalent Grade) of A409 S20400

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