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HR51

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HR40 HR52
#HR51

Description

UK B.S. BS 2HR 51 (2010), BS HR 51, HR51 Specialsteel Specification for heat-resisting alloy billets, bars, forgings and parts (Ni 25.5, Cr 14.7, Ti 2, Mn 1.5, Mo 1.2, Si 0.7, V 0.3, Fe remainder) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HR51
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HR51 B.S. UK Specification for heat-resisting alloy billets, bars, forgings and parts (Ni 25.5, Cr 14.7, Ti 2, Mn 1.5, Mo 1.2, Si 0.7, V 0.3, Fe remainder)

Chemical composition(mass fraction)(wt.%) of the HR51

C Si Mn P S Cr Ni Mo Co Ti Fe Al V B Pb
≤0.08 ≤1.00 ≤2.00 ≤0.020 ≤0.015 13.50 -16.00 24.00 -27.00 1.00 -1.50 ≤ ≥ 1.90 -2.30 ≤remaining ≤0.35 0.10 -0.50 0.0030 -0.0100 ≤0.005

Mechanical Properties of steel grade HR51

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)
791 (≥) 818 (≥) 42 21 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade HR51

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
33 - -     0.24 -  
982 564 - 11.3 344   -  
244 - 12 41.2   244 322

Heat Treatment of steel grade HR51

Heat treated : 1848°C - 1849°C

Technological Curves of steel grade HR51

Relevant standard of HR51

BS 2HR 51 (2010) Specification for high expansion heat-resisting steel billets, bars, forgings and parts (Ni 25.5, Cr 15, Ti 2, Mn 1.5, Mo 1.25, Si 0.7, V 0.3)(Solution treated at 980 °C) BS-2HR-51-(2010).pdf
BS HR 51 Specification for heat-resisting alloy billets, bars, forgings and parts (Ni 25.5, Cr 14.7, Ti 2, Mn 1.5, Mo 1.2, Si 0.7, V 0.3, Fe remainder) BS-HR-51.pdf
HR40 HR52
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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