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Description

Korea KS D 3692 (2001), D 3702 (2008), D 3703 (2007), D 3705 (2008), D 3706 (2008), D 7202 (2004), STS303 Specialsteel Free - machining stainless steel wire and wire rods and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS303
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS303 Austenite KS Korea Free - machining stainless steel wire and wire rods

Chemical composition(mass fraction)(wt.%) of the STS303

C Si Mn P S Cr Ni Mo N
≤0.15 ≤1.00 ≤2.00 ≤0.20 ≤0.15 17.00 -19.00 8.00 -10.00 ≤0.60 ≤ ≥

Mechanical Properties of steel grade STS303

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)
166 (≥) 275 (≥) 22 43 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade STS303

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
23 - -     0.11 -  
229 227 - 13.3 113   -  
599 - 31 41.2   142 214

Heat Treatment of steel grade STS303

Heat treated : 1467°C - 1931°C

Technological Curves of steel grade STS303

Relevant standard of STS303

D 3692 (2001) Cold finished stainless steel bars D-3692-(2001).pdf
D 3702 (2008) Stainless steel wire rods D-3702-(2008).pdf
D 3703 (2007) Stainless steel wires D-3703-(2007).pdf
D 3705 (2008) Hot rolled stainless steel plates, sheets and strip D-3705-(2008).pdf
D 3706 (2008) Stainless steel bars D-3706-(2008).pdf
D 7202 (2004) Free - machining stainless steel wire and wire rods D-7202-(2004).pdf

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