HR403 Stainless Steels to BS HR 403 (1973)

HR403 - Specification & Application

  • BS HR 403 (1973) - Specification for nickel-chromium-titanium heat-resisting alloy cold-worked and softened seamless tubes (nickel base, Cr 19.5, Ti 0.4)
  • BS 2HR 403 (2011) - Specification for nickel-chromium-titanium heat-resisting alloy cold-worked and softened seamless tubes (nickel base, Cr 19.5, Ti 0.4)

Specification for nickel-chromium-titanium heat-resisting alloy cold-worked and softened seamless tubes (nickel base, Cr 19.5, Ti 0.4)

Chemical composition(wt.%) of HR403 grade: to BS HR 403 (1973)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.08 0.15
Si - 1.00
Mn - 1.00
P - -
S - 0.020
Cr 18.00 21.00
Ni - remaining
Mo - -
Co - 5.00
Ti 0.20 0.60
Fe - 5.00
Cu - 0.50
Pb - 0.005

HR403 - Detail

Specification for nickel-chromium-titanium heat-resisting alloy cold-worked and softened seamless tubes (nickel base, Cr 19.5, Ti 0.4)

Mechanical properties of grade HR403 BS HR 403 (1973)

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)
133 (≥) 916 (≥) 31 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical properties of grade HR403 BS HR 403 (1973)

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
985 (≥) 648 (≥) 21 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 134
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
687 442 165

Equivalent Grade

Equivalent Products

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