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SA-268 S44400

America ASME SA-268S44400 般用途无缝和焊接铁素体和马氏体不锈钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-268S44400 / SA-268 S44400
Category Grade Standard Region/Area Standard Content
Metals SA-268 S44400 ASME SA-268/SA-268M America 般用途无缝和焊接铁素体和马氏体不锈钢管

Chemical composition(mass fraction)(wt.%) of the SA-268 S44400

Element Min Max Similar
Ti - 0.8000 -
Si - 1.0000 -
S - 0.0300 -
P - 0.0400 -
Ni - 1.0000 -
N - 0.0350 -
Mo 1.7500 2.5000 -
Mn - 1.0000 -
Cr 17.5000 19.5000 -
C - 0.0250 -

Mechanical Properties of steel grade SA-268 S44400

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)
825 (≥) 243 (≥) 11 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade SA-268 S44400

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
31 - -     0.21 -  
713 766 - 41.3 422   -  
492 - 23 23.2   324 413

Heat Treatment of steel grade SA-268 S44400

Heat treated : 1842°C - 1163°C

Technological Curves of steel grade SA-268 S44400

Cross Reference Table (Equivalent Grade) of SA-268 S44400

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