A 403 CRS31254 Stainless Steels to A 403/A 403M (2012)

A 403 CRS31254 - Specification & Application

  • A 403/A 403M (2012) - Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Chemical composition(wt.%) of A 403 CRS31254 grade: to A 403/A 403M (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.02
Mn - 1.00
Si - 0.80
P - 0.03
S - 0.01
Cr 19.50 20.50
Ni 17.50 18.50
Mo 6.00 6.50
Cu 0.50 1.00
N 0.18 0.22

A 403 CRS31254 - Detail

Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Mechanical properties of grade A 403 CRS31254 A 403/A 403M (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)
572 (≥) 321 (≥) 42 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical properties of grade A 403 CRS31254 A 403/A 403M (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
772 (≥) 336 (≥) 24 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
711 473 896

Equivalent Products

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