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2HR401

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HR251 HR402
#2HR401

Description

UK B.S. BS 2HR 401 (1973), BS 3HR 401 (2011), 2HR401 Specialsteel Specification for nickel-chromium-titanium-aluminium heat-resisting alloy seamless tubes (Nickel base, Cr 19.5, Ti 2.2, Al 1.4) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 2HR401
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 2HR401 B.S. UK Specification for nickel-chromium-titanium-aluminium heat-resisting alloy seamless tubes (Nickel base, Cr 19.5, Ti 2.2, Al 1.4)

Chemical composition(mass fraction)(wt.%) of the 2HR401

C Si Mn P S Cr Ni Mo Co Ti Fe Al Cu B Bi Pb Ag
0.04 -0.10 ≤1.00 ≤1.00 ≤ ≥ ≤0.015 18.00 -21.00 ≤remaining ≤ ≥ ≤2.00 1.80 -2.70 ≤1.50 1.00 -1.80 ≤0.20 ≤0.008 ≤0.0001 ≤0.002 ≤0.0005

Mechanical Properties of steel grade 2HR401

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)
299 (≥) 733 (≥) 43 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 2HR401

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
31 - -     0.43 -  
886 643 - 41.3 211   -  
272 - 34 23.2   243 441

Heat Treatment of steel grade 2HR401

Heat treated : 1156°C - 1488°C

Technological Curves of steel grade 2HR401

Relevant standard of 2HR401

BS 2HR 401 (1973) Specification for nickel-chromium-titanium-aluminium heat-resisting alloy cold worked and softened seamless tubes (nickel base, Cr 19.5, Ti 2.2, Al 1.4) BS-2HR-401-(1973).pdf
BS 3HR 401 (2011) Specification for nickel-chromium-titanium-aluminium heat-resisting alloy seamless tubes (Nickel base, Cr 19.5, Ti 2.2, Al 1.4) BS-3HR-401-(2011).pdf
HR251 HR402
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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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