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320S18

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318S17 326S42
#320S18

Description

UK B.S. BS 1554, 320S18 Specialsteel Specification for stainless and heat-resisting steel round wire and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 320S18
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 320S18 B.S. UK Specification for stainless and heat-resisting steel round wire

Chemical composition(mass fraction)(wt.%) of the 320S18

C Si Mn P S Cr Mo Ni Ti
≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 16.50 -18.50 2.00 -2.50 10.50 -13.50 ≤0.80

Mechanical Properties of steel grade 320S18

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)
875 (≥) 894 (≥) 44 32 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade 320S18

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
43 - -     0.22 -  
931 217 - 43.3 232   -  
629 - 13 31.2   413 143

Heat Treatment of steel grade 320S18

Heat treated : 1523°C - 1789°C

Technological Curves of steel grade 320S18

Cross Reference Table (Equivalent Grade) of 320S18

Grade Standard Country Application
320S18
320S18

Relevant standard of 320S18

BS 1554 Specification for stainless and heat-resisting steel round wire BS-1554.pdf
318S17 326S42
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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