STS321TPY Stainless Steels to D 3588 (2009)

STS321TPY - Specification & Application

  • D 3588 (2009) - Large diameter welded stainless steel pipes

Large diameter welded stainless steel pipes

Chemical composition(wt.%) of STS321TPY grade: to D 3588 (2009)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.030
Cr 17.00 19.00
Ni 9.00 13.00
Mo - -
N - -
Ti 5×C% -

STS321TPY - Detail

Large diameter welded stainless steel pipes

Mechanical properties of grade STS321TPY D 3588 (2009)

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)
961 (≥) 911 (≥) 23 44 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical properties of grade STS321TPY D 3588 (2009)

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
788 (≥) 845 (≥) 44 13 23 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
144 117 687

Equivalent Products

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