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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)
633 (≥) 947 (≥) 12 43 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

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
32 - -     0.33 -  
384 915 - 14.3 133   -  
131 - 23 42.2   243 321

Heat Treatment of steel grade HR51

Heat treated : 1195°C - 1117°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.
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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