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Description

UK B.S. BS 6S 80, 6S.80 Specialsteel Specification for high chromium-nickel corrosion-resisting steel forging stock, bars, forgings and parts (880-1080 MPa, limiting ruling section 100 mm) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 6S.80
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 6S.80 B.S. UK Specification for high chromium-nickel corrosion-resisting steel forging stock, bars, forgings and parts (880-1080 MPa, limiting ruling section 100 mm)

Chemical composition(mass fraction)(wt.%) of the 6S.80

C Si Mn P S Cr Ni Mo Nb Ti
0.12 -0.20 ≤1.00 ≤1.00 ≤0.030 ≤0.025 15.00 -18.00 2.00 -3.00 ≤0.30 ≤0.05 ≤0.05

Mechanical Properties of steel grade 6S.80

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)
634 (≥) 327 (≥) 32 12 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade 6S.80

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
32 - -     0.42 -  
345 555 - 14.3 313   -  
635 - 14 12.2   121 431

Heat Treatment of steel grade 6S.80

Heat treated : 1314°C - 1453°C

Technological Curves of steel grade 6S.80

Relevant standard of 6S.80

BS 6S 80 Specification for high chromium-nickel corrosion-resisting steel forging stock, bars, forgings and parts (880-1080 MPa, limiting ruling section 100 mm) BS-6S-80.pdf

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