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A 312 TP309

Description

USA SAE A 312/A 312M (2009) , A 312 TP309 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 TP309
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 312 TP309 Austenite SAE USA Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

Chemical composition(mass fraction)(wt.%) of the A 312 TP309

C Si Mn P S Cr Ni
≤0.20 ≤1.00 ≤2.00 ≤0.045 ≤0.03 22.0 -24.0 12.0 -15.0

Mechanical Properties of steel grade A 312 TP309

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)
215 (≥) 515 (≥) 34 13 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade A 312 TP309

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 - -     0.23 -  
161 936 - 21.3 111   -  
755 - 33 12.2   321 411

Heat Treatment of steel grade A 312 TP309

Heat treated : 1194°C - 1351°C

Technological Curves of steel grade A 312 TP309

Cross Reference Table (Equivalent Grade) of A 312 TP309

Relevant standard of A 312 TP309

A 312/A 312M (2009) Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes A-312-A-312M--(2009)-.pdf

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