A 403 CR304N Stainless Steels to A 403/A 403M (2012)

A 403 CR304N - 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 CR304N grade: to A 403/A 403M (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 0.75
Mn - 2.00
P - 0.045
S - 0.03
Cr 18.0 20.0
Ni 8.00 10.5
N 0.10 0.16

A 403 CR304N - Detail

Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings

Mechanical properties of grade A 403 CR304N 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)
918 (≥) 618 (≥) 23 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical properties of grade A 403 CR304N 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
379 (≥) 124 (≥) 13 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
368 361 426

Equivalent Products

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