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STS420J2

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STS420J1 STS420F
#STS420J2

Description

Korea KS STS420J2 martensitic steel and STS420J2 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: STS420J2
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STS420J2 KS Korea martensitic steel
STS430F
STS434
STS447J1
STSXM27
STS403
STS410
STS41oJl
STS41OF2
STS416
STS420J1

Chemical composition(mass fraction)(wt.%) of the STS420J2

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％)
0.26-0.40 Max 1.00 Max 1.00 Max 0.04 Max 0.03 12.0-14.0 Max 0.60

Mechanical Properties of steel grade STS420J2

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)
173 (≥) 766 (≥) 22 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade STS420J2

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
42 - -     0.43 -  
219 174 - 33.3 131   -  
223 - 31 41.2   312 114

Heat Treatment of steel grade STS420J2

Heat treated : 1749°C - 1224°C

Technological Curves of steel grade STS420J2

Cross Reference Table (Equivalent Grade) of STS420J2

Grade Standard Country Application
STS420J2 KS Korea martensitic steel
STS420J2 KS Korea martensitic steel
STS420J2TKA KS Korea KS standard mechanical and structure with stainless steel pipe(KS D3536-1992)
STS420J1 STS420F
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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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