STS309STPY Stainless Steels to D 3588 (2009)

STS309STPY - Specification & Application

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

Large diameter welded stainless steel pipes

Chemical composition(wt.%) of STS309STPY 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 22.00 24.00
Ni 12.00 15.00
Mo - -
N - -

STS309STPY - Detail

Large diameter welded stainless steel pipes

Mechanical properties of grade STS309STPY 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)
665 (≥) 822 (≥) 13 14 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical properties of grade STS309STPY 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
412 (≥) 337 (≥) 42 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 341
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
466 394 327

Equivalent Products

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