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Description

UK B.S. BS HR 3, BS 2HR 3 (2010), HR3 Specialsteel Specification for nickel-cobalt-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Co 20, Cr 14.8, Mo 5, Al 4.8, Ti 1.2) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HR3
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HR3 B.S. UK Specification for nickel-cobalt-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Co 20, Cr 14.8, Mo 5, Al 4.8, Ti 1.2)

Chemical composition(mass fraction)(wt.%) of the HR3

C Si Mn P S Cr Ni Mo Co Ti Fe Al Cu B Bi Pb Ag Zr
0.12 -0.17 ≤1.00 ≤1.00 ≤ ≥ ≤0.015 14.00 -15.70 ≤remaining 4.50 -5.50 18.00 -22.00 0.90 -1.50 ≤1.00 4.50 -4.90 ≤0.20 0.0030 -0.0100 ≤0.0001 ≤0.0015 ≤0.0005 ≤0.15

Mechanical Properties of steel grade HR3

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
944 (≥) 477 (≥) 22 31 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade HR3

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
11 - -     0.11 -  
327 499 - 34.3 341   -  
325 - 32 14.2   443 143

Heat Treatment of steel grade HR3

Heat treated : 1163°C - 1683°C

Technological Curves of steel grade HR3

Cross Reference Table (Equivalent Grade) of HR3

Grade Standard Country Application
HR3C

Relevant standard of HR3

BS HR 3 Specification for nickel-cobalt-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Co 20, Cr 14.8, Mo 5, Al 4.7, Ti 1.2) BS-HR-3.pdf
BS 2HR 3 (2010) Specification for nickel-cobalt-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Co 20, Cr 14.8, Mo 5, Al 4.8, Ti 1.2) BS-2HR-3-(2010).pdf

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