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HR55

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HR53 HR203
#HR55

Description

UK B.S. BS 2HR 55 (2010), BS HR 55, HR55 Specialsteel Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HR55
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HR55 B.S. UK Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

Chemical composition(mass fraction)(wt.%) of the HR55

C Si Mn P S Cr Ni Mo Co Ti Fe Al Cu B Pb Bi Ag Zr
0.04 -0.08 ≤0.50 ≤0.20 ≤ ≥ ≤0.015 15.50 -17.50 42.00 -45.00 2.80 -3.80 ≤2.00 1.10 -1.30 ≤remaining 1.10 -1.30 ≤0.50 ≤0.005 ≤0.0015 ≤0.0001 ≤0.0005 0.01 -0.04

Mechanical Properties of steel grade HR55

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)
779 (≥) 239 (≥) 22 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade HR55

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 - -     0.11 -  
863 262 - 44.3 343   -  
594 - 43 43.2   421 342

Heat Treatment of steel grade HR55

Heat treated : 1724°C - 1625°C

Technological Curves of steel grade HR55

Relevant standard of HR55

BS 2HR 55 (2010) Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder) BS-2HR-55-(2010).pdf
BS HR 55 Specification for nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder) BS-HR-55.pdf
HR53 HR203
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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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