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SA-312 TP347LN

Description

USA AMS SA-312/SA-312M, SA-312 TP347LN Specialsteel Specification for Seamless and Welded Austenitic Stainless Steel Pipes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-312 TP347LN
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-312 TP347LN Precipitation-Hardening AMS USA Specification for Seamless and Welded Austenitic Stainless Steel Pipes

Chemical composition(mass fraction)(wt.%) of the SA-312 TP347LN

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo V
0.005 -0.02 ≤0.75 ≤2.00 ≤0.04 ≤0.03 9.00 -13.00 17.00 -20.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ 0.06 -0.10 ≤ ≥ ≤ ≥

Mechanical Properties of steel grade SA-312 TP347LN

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)
938 (≥) 186 (≥) 14 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade SA-312 TP347LN

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
22 - -     0.31 -  
333 661 - 14.3 142   -  
287 - 14 32.2   431 341

Heat Treatment of steel grade SA-312 TP347LN

Heat treated : 1435°C - 1687°C

Technological Curves of steel grade SA-312 TP347LN

Cross Reference Table (Equivalent Grade) of SA-312 TP347LN

Grade Standard Country Application
347LN
TP347LN
TP347LN

Relevant standard of SA-312 TP347LN

SA-312/SA-312M Specification for Seamless and Welded Austenitic Stainless Steel Pipes SA-312-SA-312M.pdf

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