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401S45

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381S34 443S65
#401S45

Description

UK B.S. BS 970-4, 401S45 Specialsteel Specification for wrought steels for mechanical and allied engineering purposes. Valve steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 401S45
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 401S45 B.S. UK Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%) of the 401S45

C Si Mn P S Cr Ni Mo
0.40 -0.50 3.00 -3.75 0.30 -0.75 ≤0.040 ≤0.030 7.50 -9.50 ≤0.50 ≤ ≥

Mechanical Properties of steel grade 401S45

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)
427 (≥) 134 (≥) 32 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade 401S45

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 - -     0.13 -  
488 875 - 12.3 444   -  
485 - 42 34.2   333 443

Heat Treatment of steel grade 401S45

Heat treated : 1138°C - 1127°C

Technological Curves of steel grade 401S45

Relevant standard of 401S45

BS 970-4 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels BS-970-4.pdf
381S34 443S65
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