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Description

Korea KS D 4115 (2001), STSF304H Specialsteel Stainless steel forgings for pressure vessels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STSF304H
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STSF304H Austenite KS Korea Stainless steel forgings for pressure vessels

Chemical composition(mass fraction)(wt.%) of the STSF304H

C Si Mn P S Cr Ni Mo
0.04 -0.10 ≤1.00 ≤2.00 ≤0.040 ≤0.030 18.00 -20.00 8.00 -12.00 ≤ ≥

Mechanical Properties of steel grade STSF304H

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)
998 (≥) 993 (≥) 41 12 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade STSF304H

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
34 - -     0.32 -  
221 462 - 33.3 443   -  
471 - 21 14.2   212 412

Heat Treatment of steel grade STSF304H

Heat treated : 1231°C - 1476°C

Technological Curves of steel grade STSF304H

Relevant standard of STSF304H

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

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