321TKA Stainless Steels

321TKA - Specification & Application

CNS standard mechanical and structure with stainless steel pipe

Chemical composition(wt.%) of 321TKA grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.040
S - 0.030
Cr 17.00 19.00
Ni 9.00 13.00
Mo - -
Ti 5×C% -

321TKA - Detail

CNS standard mechanical and structure with stainless steel pipe

Mechanical properties of grade 321TKA

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)
596 (≥) 665 (≥) 24 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical properties of grade 321TKA

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
416 (≥) 762 (≥) 32 43 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 311
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
929 112 977

Equivalent Products

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