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Description

Japan JIS SUS420F Martensitic special steel and SUS420F Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: SUS420F
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel SUS420F JIS Japan Martensitic special steel
SUS434
SUS447J1
SUSXM27
SUS403
SUS410
SUS410J1
SUS410F2
SUS416
SUS420J1
SUS420J2

Chemical composition(mass fraction)(wt.%) of the SUS420F

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.26-0.40 Max 1.00 Max 1.00 Max 0.06 Mix 0.15 12.0-14.0 Max 0.60 Max 0.60

Mechanical Properties of steel grade SUS420F

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)
968 (≥) 451 (≥) 32 34 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade SUS420F

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 - -     0.34 -  
676 347 - 23.3 242   -  
636 - 33 13.2   321 311

Heat Treatment of steel grade SUS420F

Heat treated : 1265°C - 1852°C

Technological Curves of steel grade SUS420F

Cross Reference Table (Equivalent Grade) of SUS420F

Grade Standard Country Application
SUS420F JIS Japan Martensitic special steel
SUS420F2 JIS Japan Martensitic special steel

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