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HR240

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HR209 HR251
#HR240

Description

UK B.S. BS HR 240 (1972), BS 2HR 240 (2011), HR240 Specialsteel Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: HR240
Category Class Grade Standard Country Application
Steel GradesSpecialsteel HR240 B.S. UK Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5)

Chemical composition(mass fraction)(wt.%) of the HR240

C Si Mn P S Cr Ni Mo Co Ti Fe W
0.05 -0.15 ≤0.40 1.00 -2.00 ≤0.040 ≤0.030 19.00 -21.00 9.00 -11.00 ≤ ≥ ≤remaining ≤ ≥ ≤3.00 14.00 -16.00

Mechanical Properties of steel grade HR240

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)
599 (≥) 381 (≥) 13 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade HR240

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
42 - -     0.31 -  
268 941 - 13.3 334   -  
777 - 14 23.2   441 321

Heat Treatment of steel grade HR240

Heat treated : 1387°C - 1783°C

Technological Curves of steel grade HR240

Relevant standard of HR240

BS HR 240 (1972) Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5) BS-HR-240-(1972).pdf
BS 2HR 240 (2011) Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy plate, sheet and strip (cobalt base Cr 20, W 15, Ni 10, Mn 1.5) BS-2HR-240-(2011).pdf
HR209 HR251
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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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