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Description

Korea KS D 3692 (2001), D 3702 (2008), D 3703 (2007), D 3706 (2008), STS420F Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS420F
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS420F Martensite KS Korea Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the STS420F

C Si Mn P S Cr Ni Mo N
0.26 -0.40 ≤1.00 ≤1.00 ≤0.060 ≤0.15 12.00 -14.00 ≤0.60 ≤0.60 ≤ ≥

Mechanical Properties of steel grade STS420F

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)
331 (≥) 932 (≥) 42 22 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade STS420F

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
24 - -     0.12 -  
919 875 - 13.3 434   -  
327 - 44 44.2   313 124

Heat Treatment of steel grade STS420F

Heat treated : 1468°C - 1114°C

Technological Curves of steel grade STS420F

Cross Reference Table (Equivalent Grade) of STS420F

Grade Standard Country Application
STS420F
STS420F
STS420F2
STS420F2

Relevant standard of STS420F

D 3692 (2001) Cold finished stainless steel bars D-3692-(2001).pdf
D 3702 (2008) Stainless steel wire rods D-3702-(2008).pdf
D 3703 (2007) Stainless steel wires D-3703-(2007).pdf
D 3706 (2008) Stainless steel bars D-3706-(2008).pdf

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