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FED SUS 303Cu Details

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SUS 303Cu Application: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".

Category Type Grade Microstructure Designations
Grades Stainless Steels SUS 303Cu Austenite Japan - FED , G 4303 (2005) - Stainless steel bars
G 4308 (2007) - Stainless steel wire rods
G 4309 (1999) - Stainless steel wires
G 4318 (2007) - Cold finished stainless steel bars

Chemical composition(wt.%) of SUS 303Cu grade: G 4303 (2005)

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 -
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".

Mechanical properties of grade SUS 303Cu G 4303 (2005)

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)
176 (≥) 432 (≥) 34 21 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical properties of grade SUS 303Cu G 4303 (2005)

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
214 (≥) 371 (≥) 31 42 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 112
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
136 412 563

SUS 303Cu - Form of Supply

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
S30330 AISI USA
Austenitic Chromium Nickel Copper Free-Machining Stainless Steel
SUS 303 Cu JIS Japan
Stainless steel bars
SUS 303 Cu JIS Japan
Stainless steel wire rods
SUS 303 Cu JIS Japan
Stainless steel wires
SUS 303 Cu JIS Japan
Cold finished stainless steel bars

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