SUS 321TKA Stainless Steels to G 3446 (2012)

SUS 321TKA - Specification & Application

  • G 3446 (2012) - Stainless steel pipes for machine and structural purposes

Stainless steel pipes for machine and structural purposes

Chemical composition(wt.%) of SUS 321TKA grade: to G 3446 (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.04
S - 0.03
Cr 17.00 19.00
Ni 9.00 13.00
Mo - -
Ti 5×C% -

SUS 321TKA - Detail

Stainless steel pipes for machine and structural purposes

Mechanical properties of grade SUS 321TKA G 3446 (2012)

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)
183 (≥) 833 (≥) 44 32 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical properties of grade SUS 321TKA G 3446 (2012)

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
524 (≥) 365 (≥) 41 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 223
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
561 293 585

Equivalent Grade

Equivalent Products

We can customize the production of SUS 321TKA grade, contact us for the best solution.
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