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STS321HFB

Description

Korea KS D 3691 (2001), STS321HFB Specialsteel Stainless steel blooms and billets for forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS321HFB
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS321HFB Austenite KS Korea Stainless steel blooms and billets for forgings

Chemical composition(mass fraction)(wt.%) of the STS321HFB

C Si Mn P S Cr Ni Mo N Ti
≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 17.00 -19.00 9.00 -13.00 ≤ ≥ ≤ ≥ 5×C% - ≥

Mechanical Properties of steel grade STS321HFB

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)
864 (≥) 297 (≥) 41 14 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade STS321HFB

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
31 - -     0.34 -  
441 447 - 34.3 444   -  
842 - 42 24.2   443 442

Heat Treatment of steel grade STS321HFB

Heat treated : 1942°C - 1746°C

Technological Curves of steel grade STS321HFB

Cross Reference Table (Equivalent Grade) of STS321HFB

Grade Standard Country Application
STS321
STS321

Relevant standard of STS321HFB

D 3691 (2001) Stainless steel blooms and billets for forgings D-3691-(2001).pdf

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