SA-403 S31603 Stainless Steels to SA-403/SA-403M

SA-403 S31603 - Specification & Application

  • SA-403/SA-403M - Specification for Wrought Austenitic Stainless Steel Piping Fittings

Specification for Wrought Austenitic Stainless Steel Piping Fittings

Chemical composition(wt.%) of SA-403 S31603 grade: to SA-403/SA-403M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.035
Cr 16.0 18.0
Ni 10.0 14.0
Mo 2.00 3.00
N - 0.10

SA-403 S31603 - Detail

Specification for Wrought Austenitic Stainless Steel Piping Fittings

Mechanical properties of grade SA-403 S31603 SA-403/SA-403M

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)
918 (≥) 334 (≥) 32 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical properties of grade SA-403 S31603 SA-403/SA-403M

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
454 (≥) 735 (≥) 24 14 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 242
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
515 958 463

Equivalent Products

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