420J1TKA Stainless Steels

420J1TKA - Specification & Application

CNS standard mechanical and structure with stainless steel pipe

Chemical composition(wt.%) of 420J1TKA grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.16 0.25
Si - 1.00
Mn - 1.00
P - 0.040
S - 0.030
Cr 12.00 14.00
Ni - 0.60
Mo - -

420J1TKA - Detail

CNS standard mechanical and structure with stainless steel pipe

Mechanical properties of grade 420J1TKA

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
828 (≥) 623 (≥) 31 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical properties of grade 420J1TKA

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
597 (≥) 196 (≥) 23 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 232
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
267 762 775

Equivalent Products

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