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381S34

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352S54 401S45
#381S34

Description

UK B.S. BS 970-4, 381S34 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: 381S34
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 381S34 B.S. UK Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%) of the 381S34

C Si Mn P S Cr Ni Mo N
0.15 -0.25 0.75 -1.25 ≤1.50 ≤0.040 ≤0.030 20.00 -22.00 10.50 -12.50 ≤ ≥ 0.15 -0.30

Mechanical Properties of steel grade 381S34

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)
391 (≥) 251 (≥) 41 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade 381S34

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 - -     0.33 -  
789 675 - 41.3 243   -  
596 - 14 32.2   322 114

Heat Treatment of steel grade 381S34

Heat treated : 1723°C - 1228°C

Technological Curves of steel grade 381S34

Relevant standard of 381S34

BS 970-4 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels BS-970-4.pdf
352S54 401S45
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