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SA-479 Type 444

America ASME SA-479Type444 锅炉和其他压力容器用不锈钢棒材和型材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-479Type444 / SA-479 Type 444
Category Grade Standard Region/Area Standard Content
Metals SA-479 Type 444 ASME SA-479/SA-479M America 锅炉和其他压力容器用不锈钢棒材和型材

Chemical composition(mass fraction)(wt.%) of the SA-479 Type 444

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

Mechanical Properties of steel grade SA-479 Type 444

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)
635 (≥) 136 (≥) 42 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade SA-479 Type 444

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
43 - -     0.11 -  
381 367 - 33.3 431   -  
679 - 41 21.2   242 234

Heat Treatment of steel grade SA-479 Type 444

Heat treated : 1443°C - 1771°C

Technological Curves of steel grade SA-479 Type 444

Cross Reference Table (Equivalent Grade) of SA-479 Type 444

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