2HR202 Stainless Steels to BS 2HR 202 (1973)

2HR202 - Specification & Application

  • BS 2HR 202 (1973) - Specification for nickel-chromium-cobalt-titanium-aluminium heat-resisting alloy sheet and strip (nickel base, Cr 19.5, Co 18.0, Ti 2.5, Al 1.5)
  • BS 3HR 202 (2009) - Specification for nickel-chromium-cobalt-titanium-aluminium heat-resisting alloy sheet and strip (nickel base, Cr 19.5, Co 18.0, Ti 2.5, Al 1.5)

Specification for nickel-chromium-cobalt-titanium-aluminium heat-resisting alloy sheet and strip (nickel base, Cr 19.5, Co 18.0, Ti 2.5, Al 1.5)

Chemical composition(wt.%) of 2HR202 grade: to BS 2HR 202 (1973)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.13
Si - 1.00
Mn - 1.00
P - -
S - 0.015
Cr 18.00 21.00
Ni - remaining
Mo - -
Co 15.00 21.00
Ti 2.00 3.00
Fe - 1.50
Al 1.00 2.00
Cu - 0.20
B - 0.020
Bi - 0.0001
Pb - 0.002
Ag - 0.0005
Zr - 0.15

2HR202 - Detail

Specification for nickel-chromium-cobalt-titanium-aluminium heat-resisting alloy sheet and strip (nickel base, Cr 19.5, Co 18.0, Ti 2.5, Al 1.5)

Mechanical properties of grade 2HR202 BS 2HR 202 (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)
526 (≥) 629 (≥) 34 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical properties of grade 2HR202 BS 2HR 202 (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
779 (≥) 854 (≥) 24 14 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 112
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
953 884 843

Equivalent Grade

Equivalent Products

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