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331S42

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331S40 349S52
#331S42

Description

UK B.S. BS 970-4, 331S42 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: 331S42
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 331S42 B.S. UK Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%) of the 331S42

C Si Mn P S Cr Ni Mo W
0.37 -0.47 1.00 -2.00 0.50 -1.00 ≤0.040 ≤0.030 13.00 -15.00 13.00 -15.00 0.40 -0.70 2.20 -3.00

Mechanical Properties of steel grade 331S42

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)
878 (≥) 296 (≥) 14 41 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 331S42

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
13 - -     0.44 -  
627 897 - 22.3 432   -  
771 - 41 42.2   124 233

Heat Treatment of steel grade 331S42

Heat treated : 1536°C - 1197°C

Technological Curves of steel grade 331S42

Relevant standard of 331S42

BS 970-4 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels BS-970-4.pdf
331S40 349S52
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