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420J2TKA

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420J1TKA 430TKA
#420J2TKA

Description

China CNS 420J2TKA Specialsteel CNS standard mechanical and structure with stainless steel pipe and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 420J2TKA
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 420J2TKA CNS China CNS standard mechanical and structure with stainless steel pipe

Chemical composition(mass fraction)(wt.%) of the 420J2TKA

C Si Mn P S Cr Ni Mo
0.26 -0.40 ≤1.00 ≤1.00 ≤0.040 ≤0.030 12.00 -14.00 ≤0.60 ≤ ≥

Mechanical Properties of steel grade 420J2TKA

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)
938 (≥) 692 (≥) 33 33 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade 420J2TKA

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
43 - -     0.41 -  
933 722 - 33.3 314   -  
265 - 23 24.2   221 113

Heat Treatment of steel grade 420J2TKA

Heat treated : 1277°C - 1554°C

Technological Curves of steel grade 420J2TKA

Cross Reference Table (Equivalent Grade) of 420J2TKA

Grade Standard Country Application
SUS420J2TKA
SUS420J2TKA
SUS420J2TKA
SUS420J2TKA
420J1TKA 430TKA
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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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