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HR204

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HR203 HR205
#HR204

Description

UK B.S. BS HR 204 (1972), BS 2HR 204 (2009), HR204 Specialsteel Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HR204
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HR204 B.S. UK Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6)

Chemical composition(mass fraction)(wt.%) of the HR204

C Si Mn P S Cr Ni Mo Co Ti Fe W B Pb
0.05 -0.15 ≤1.00 ≤1.00 ≤0.040 ≤0.015 20.50 -23.00 ≤remaining 8.00 -10.00 0.50 -2.50 ≤ ≥ 17.00 -20.00 0.20 -1.00 ≤0.0100 ≤0.005

Mechanical Properties of steel grade HR204

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)
946 (≥) 467 (≥) 31 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade HR204

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
21 - -     0.21 -  
219 526 - 33.3 413   -  
991 - 43 31.2   424 221

Heat Treatment of steel grade HR204

Heat treated : 1425°C - 1811°C

Technological Curves of steel grade HR204

Relevant standard of HR204

BS HR 204 (1972) Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base Cr 22, Fe 18.5, Mo 9, Co 1.5, W 0.6) BS-HR-204-(1972).pdf
BS 2HR 204 (2009) Specification for nickel-chromium-iron-molybdenum-cobalt-tungsten heat-resisting alloy plate, sheet and strip (nickel base, Cr 21.7, Fe 18.5, Mo 9, Co 1.5, W 0.6) BS-2HR-204-(2009).pdf
HR203 HR205
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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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