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318S13

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321S51 520 904S13
#318S13

Description

UK B.S. BS 1501-3, BS 1503, 318S13 Specialsteel Specification for steel forgings for pressure purposes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 318S13
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 318S13 B.S. UK Specification for steel forgings for pressure purposes

Chemical composition(mass fraction)(wt.%) of the 318S13

C Si Mn P S Cr Mo Ni N
≤0.03 ≤1.00 ≤2.00 ≤0.025 ≤0.020 21.00 -23.00 2.50 -3.50 4.50 -6.50 0.08 -0.20

Mechanical Properties of steel grade 318S13

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)
491 (≥) 573 (≥) 14 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade 318S13

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
31 - -     0.14 -  
431 198 - 14.3 314   -  
841 - 32 13.2   131 322

Heat Treatment of steel grade 318S13

Heat treated : 1274°C - 1953°C

Technological Curves of steel grade 318S13

Relevant standard of 318S13

BS 1501-3 Steels for pressure purposes. Specification for corrosion- and heat-resisting steels: plates, sheet and strip BS-1501-3.pdf
BS 1503 Specification for steel forgings for pressure purposes BS-1503.pdf
321S51 520 904S13
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