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SUS 420J1

Description

Japan JIS G 4303 (2012), SUS 420J1 Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SUS 420J1
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SUS 420J1 Martensite JIS Japan Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the SUS 420J1

C Si Mn P S Cr Ni Mo N
0.16 -0.25 ≤1.00 ≤1.00 ≤0.06 ≤0.03 12.00 -14.00 ≤0.60 ≤ ≥ ≤ ≥

Mechanical Properties of steel grade SUS 420J1

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)
324 (≥) 246 (≥) 33 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade SUS 420J1

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 - -     0.44 -  
944 757 - 34.3 414   -  
444 - 41 14.2   131 224

Heat Treatment of steel grade SUS 420J1

Heat treated : 1662°C - 1528°C

Technological Curves of steel grade SUS 420J1

Relevant standard of SUS 420J1

G 4303 (2012) Stainless steel bars G-4303-(2012).pdf

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