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AMS SUS303Cu Details

Specification for stainless steel bars

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SUS303Cu Application:Specification for stainless steel bars
Category Type Grade Microstructure Designations
Grades Stainless Steels SUS303Cu Austenite USA - AMS , SA/JIS G4303 - Specification for stainless steel bars
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Si - 1.00
Mn - 2.00
P - 0.15
S 0.10 -
Cr 17.0 19.0
Ni 6.00 10.0
Cu 2.50 4.00
Se 0.10 -
Mechanical properties of grade SUS303Cu
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
453 (≥) 564 (≥) 41 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 134
Physical properties of grade SUS303Cu
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
873 (≥) 597 (≥) 23 22 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 412
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
767 767 292
SUS303Cu Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
303 Cu UNS USA
Chemical compositions of SAE wrought stainless steels
SUS 303Cu FED Japan
Austenitic stainless steel; B (bars) can be suffixed to the symbol of the grade; Round bars, square bars, hexagonal bars and flat bars, hereafter generically reffered to as "bars".
SUS303Cu AMS USA
Specification for stainless steel bars
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Cold finished stainless steel bars