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SA-312 TP309HCb

America ASME SA-312TP309HCb Specification for Seamless and Welded Austenitic Stainless Steel Pipes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-312TP309HCb / SA-312 TP309HCb
Category Grade Standard Region/Area Standard Content
Metals SA-312 TP309HCb ASME SA-312/SA-312M America Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Chemical composition(mass fraction)(wt.%) of the SA-312 TP309HCb

Element Min Max Similar
Si - 0.7500 -
S - 0.0300 -
P - 0.0450 -
Other - - -
Ni 12.0000 16.0000 -
Nb - 1.1000 -
Mo - 0.7500 -
Mn - 2.0000 -
Cr 22.0000 24.0000 -
C 0.0400 0.1000 -

Mechanical Properties of steel grade SA-312 TP309HCb

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)
846 (≥) 193 (≥) 11 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade SA-312 TP309HCb

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 - -     0.14 -  
573 642 - 34.3 223   -  
795 - 42 24.2   143 411

Heat Treatment of steel grade SA-312 TP309HCb

Heat treated : 1796°C - 1853°C

Technological Curves of steel grade SA-312 TP309HCb

Cross Reference Table (Equivalent Grade) of SA-312 TP309HCb

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