HR207 Stainless Steels to BS HR 207 (1973)

HR207 - Specification & Application

  • BS HR 207 (1973) - Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)
  • BS 2HR 207 (2009) - Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

Chemical composition(wt.%) of HR207 grade: to BS HR 207 (1973)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.08
Si - 0.50
Mn - 0.20
P - -
S - 0.015
Cr 15.50 17.50
Ni 42.00 45.00
Mo 2.80 3.80
Co - 2.00
Ti 1.10 1.30
Fe - remaining
Al 1.10 1.30
Cu - 0.50
Zr 0.02 0.04
B - 0.0050
Bi - 0.0001
Pb - 0.0015
Ag - 0.0005

HR207 - Detail

Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy plate, sheet and strip (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

Mechanical properties of grade HR207 BS HR 207 (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)
388 (≥) 255 (≥) 14 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical properties of grade HR207 BS HR 207 (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
759 (≥) 417 (≥) 44 24 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
266 142 162

Equivalent Grade

Equivalent Products

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