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Description

UK B.S. BS S 538, S.538 Specialsteel Specification for chromium-nickel-molybdenum-vanadium heat-resisting steel sheet and strip (930-1130 MPa: maximum thickness 6 mm) (Cr 12, Ni 2.5, Mo 1.7, V 0.3) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: S.538
Category Class Grade Standard Country Application
Steel GradesSpecialsteel S.538 B.S. UK Specification for chromium-nickel-molybdenum-vanadium heat-resisting steel sheet and strip (930-1130 MPa: maximum thickness 6 mm) (Cr 12, Ni 2.5, Mo 1.7, V 0.3)

Chemical composition(mass fraction)(wt.%) of the S.538

C Si Mn P S Cr Ni Mo Nb/Ti V N
0.08 -0.16 ≤0.35 0.50 -0.90 ≤0.030 ≤0.025 11.00 -12.50 2.00 -3.00 1.50 -2.00 ≤ ≥ 0.25 -0.40 0.02 -0.04

Mechanical Properties of steel grade S.538

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)
187 (≥) 979 (≥) 43 44 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade S.538

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
11 - -     0.12 -  
676 263 - 11.3 333   -  
128 - 22 12.2   412 414

Heat Treatment of steel grade S.538

Heat treated : 1244°C - 1469°C

Technological Curves of steel grade S.538

Relevant standard of S.538

BS S 538 Specification for chromium-nickel-molybdenum-vanadium heat-resisting steel sheet and strip (930-1130 MPa: maximum thickness 6 mm) (Cr 12, Ni 2.5, Mo 1.7, V 0.3) BS-S-538.pdf

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