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SUS 420J1 FB

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SUS 410J1 FB SUS 420J2 FB
#SUS-420J1-FB

Description

Japan JIS G 4319 (1991), SUS 420J1 FB Specialsteel Stainless steel blooms and billets for forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SUS 420J1 FB
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SUS 420J1 FB Martensite JIS Japan Stainless steel blooms and billets for forgings

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

C Si Mn P S Cr Ni Mo
0.16 -0.25 ≤1.00 ≤1.00 ≤0.04 ≤0.03 12.00 -14.00 ≤0.60 ≤ ≥

Mechanical Properties of steel grade SUS 420J1 FB

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)
979 (≥) 569 (≥) 43 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade SUS 420J1 FB

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
12 - -     0.33 -  
927 381 - 41.3 143   -  
195 - 44 42.2   111 441

Heat Treatment of steel grade SUS 420J1 FB

Heat treated : 1896°C - 1212°C

Technological Curves of steel grade SUS 420J1 FB

Relevant standard of SUS 420J1 FB

G 4319 (1991) Stainless steel blooms and billets for forgings G-4319-(1991).pdf
SUS 410J1 FB SUS 420J2 FB
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