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STS420J1FB

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STS420J1TKA STS420J2
#STS420J1

Description

Korea KS D 3691 (2001), STS420J1FB Specialsteel Stainless steel blooms and billets for forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS420J1FB
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS420J1FB Martensite KS Korea Stainless steel blooms and billets for forgings

Chemical composition(mass fraction)(wt.%) of the STS420J1FB

C Si Mn P S Cr Ni Mo N
0.16 -0.25 ≤1.00 ≤1.00 ≤0.040 ≤0.030 12.00 -14.00 ≤0.60 ≤ ≥ ≤ ≥

Mechanical Properties of steel grade STS420J1FB

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)
251 (≥) 747 (≥) 44 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade STS420J1FB

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
32 - -     0.21 -  
314 425 - 42.3 331   -  
438 - 13 33.2   322 432

Heat Treatment of steel grade STS420J1FB

Heat treated : 1532°C - 1739°C

Technological Curves of steel grade STS420J1FB

Cross Reference Table (Equivalent Grade) of STS420J1FB

Grade Standard Country Application
STS420J1
STS420J1

Relevant standard of STS420J1FB

D 3691 (2001) Stainless steel blooms and billets for forgings D-3691-(2001).pdf
STS420J1TKA STS420J2
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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