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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)
171 (≥) 726 (≥) 13 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

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
12 - -     0.42 -  
238 129 - 32.3 141   -  
654 - 23 21.2   444 424

Heat Treatment of steel grade 420J2TKA

Heat treated : 1884°C - 1117°C

Technological Curves of steel grade 420J2TKA

Cross Reference Table (Equivalent Grade) of 420J2TKA

Grade Standard Country Application
SUS420J2TKA
SUS420J2TKA
SUS420J2TKA
SUS420J2TKA

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