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Korea KS D 4115 (2001), STSF347H Specialsteel Stainless steel forgings for pressure vessels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STSF347H
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STSF347H Austenite KS Korea Stainless steel forgings for pressure vessels

Chemical composition(mass fraction)(wt.%) of the STSF347H

C Si Mn P S Cr Ni Mo Nb
0.04 -0.10 ≤1.00 ≤2.00 ≤0.040 ≤0.030 17.00 -20.00 9.00 -13.00 ≤ ≥ 8×C% -1.00

Mechanical Properties of steel grade STSF347H

Rp0.2 (MPa)
Rm (MPa)
KV/Ku (J)
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
762 (≥) 612 (≥) 24 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade STSF347H

Modulus of elasticity
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
Specific thermal capacity
Specific electrical resistivity
(Ω mm²/m)
Poisson’s coefficient, ν
22 - -     0.43 -  
224 863 - 43.3 313   -  
462 - 32 33.2   132 211

Heat Treatment of steel grade STSF347H

Heat treated : 1157°C - 1811°C

Technological Curves of steel grade STSF347H

Relevant standard of STSF347H

D 4115 (2001) Stainless steel forgings for pressure vessels D-4115-(2001).pdf

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