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A 312 TP309H

Description

USA SAE A 312/A 312M (2012) , A 312 TP309H Specialsteel Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 312 TP309H
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 312 TP309H Austenite SAE USA Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

Chemical composition(mass fraction)(wt.%) of the A 312 TP309H

C Si Mn P S Cr Ni
≤0.08 ≤0.75 ≤2.00 ≤0.045 ≤0.030 22.0 -24.0 12.0 -15.0

Mechanical Properties of steel grade A 312 TP309H

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)
874 (≥) 359 (≥) 14 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade A 312 TP309H

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
12 - -     0.32 -  
474 387 - 32.3 224   -  
452 - 34 32.2   334 434

Heat Treatment of steel grade A 312 TP309H

Heat treated : 1222°C - 1775°C

Technological Curves of steel grade A 312 TP309H

Cross Reference Table (Equivalent Grade) of A 312 TP309H

Relevant standard of A 312 TP309H

A 312/A 312M (2012) Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes A-312-A-312M--(2012)-.pdf

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