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Description

USA AMS SA/JIS G4303, SUS303Se Specialsteel Standard Specification for Stainless Steel Socket Set Screws (Metric) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SUS303Se
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SUS303Se Austenite AMS USA Standard Specification for Stainless Steel Socket Set Screws (Metric)

Chemical composition(mass fraction)(wt.%) of the SUS303Se

C Si Mn P S Cr Ni Se
≤0.15 ≤1.00 ≤2.00 ≤0.2 ≤0.06 17.0 -19.0 8.00 -10.0 0.15 - ≥

Mechanical Properties of steel grade SUS303Se

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)
998 (≥) 343 (≥) 13 13 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade SUS303Se

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
24 - -     0.44 -  
199 221 - 44.3 332   -  
829 - 41 44.2   212 231

Heat Treatment of steel grade SUS303Se

Heat treated : 1732°C - 1247°C

Technological Curves of steel grade SUS303Se

Cross Reference Table (Equivalent Grade) of SUS303Se

Grade Standard Country Application
303Se
303Se
MT303Se
SUS303Se
SUS303Se

Relevant standard of SUS303Se

SA/JIS G4303 Specification for stainless steel bars SA-JIS-G4303.pdf

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