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SA-249 Grade TP 321H

America ASME SA-249GradeTP321H 锅炉、过热器、换热器和冷凝器用焊接奥氏体钢管子 and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals SA-249 Grade TP 321H ASME SA-249/SA-249M America 锅炉、过热器、换热器和冷凝器用焊接奥氏体钢管子

Chemical composition(mass fraction)(wt.%) of the SA-249 Grade TP 321H

Element Min Max Similar

Mechanical Properties of steel grade SA-249 Grade TP 321H

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)
549 (≥) 472 (≥) 13 24 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade SA-249 Grade TP 321H

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
24 - -     0.42 -  
286 369 - 41.3 211   -  
154 - 44 12.2   223 222

Heat Treatment of steel grade SA-249 Grade TP 321H

Heat treated : 1764°C - 1925°C

Technological Curves of steel grade SA-249 Grade TP 321H

Cross Reference Table (Equivalent Grade) of SA-249 Grade TP 321H

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