303 Stainless Steel Bar

303 (UNS 30300) stainless steel bars were developed for machining. Type 303 has a higher concentration of sulfur reducing the drag on cutting tools. It allows greater machining speeds and lower production costs. The alloy is useful whenever a need arises for good corrosion resistance and considerable machining is required.

Austenitic steels have austenite as their primary phase (face centered cubic crystal). These are alloys containing chromium and nickel (sometimes manganese and nitrogen), structured around the Type 302 composition of iron, 18% chromium, and 8% nickel. Austenitic steels are not hardenable by heat treatment. The most familiar stainless steel is probably Type 304, sometimes called T304 or simply 304. Type 304 surgical stainless steel is austenitic steel containing 18-20% chromium and 8-10% nickel.

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Specification
OD
Manufacture Method
Shape
Grade
Diameter

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Compare SKU Description Manufacture Method Diameter Shape Specification
Sku: 75868 Description: Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: Shape: Specification: ASTM A582
Sku: 07797 Description: 303 CDA S/S ROD .3125 DIA Manufacture Method: Air Melt Diameter: 0.3125 Shape: STEEL ROD/BAR ROUND Specification: AMS5640 ASTM A582
Sku: 07812 Description: 303 CDA S/S ROD .4375 DIA Manufacture Method: Air Melt Diameter: 0.4375 Shape: STEEL ROD/BAR ROUND Specification: AMS5640 ASTM A582
Sku: 49297 Description: 303 SS .8125 HEX x 12'R/L Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 0.8125 Shape: STEEL ROD/BAR HEX Specification: AMS5640 ASTM A582
Sku: 07854 Description: 303 CDA S/S ROD .5625 DIA Manufacture Method: Air Melt Diameter: 0.5625 Shape: STEEL ROD/BAR ROUND Specification: AMS5640 ASTM A582
Sku: 07778 Description: 303 CDA S/S ROD .1875 DIA Manufacture Method: Air Melt Diameter: 0.1875 Shape: STEEL ROD/BAR ROUND Specification: AMS5640 ASTM A582
Sku: 07784 Description: 303 CF S/S ROD 1.2500 DIA Manufacture Method: Air Melt Diameter: 1.2500 Shape: STEEL ROD/BAR ROUND Specification: AMS5640 ASTM A582
Sku: 07768 Description: 303 CF S/S ROD 1.00 DIA Manufacture Method: Air Melt Diameter: 1.0000 Shape: STEEL ROD/BAR ROUND Specification: AMS5640 ASTM A582
Sku: 07295 Description: 303 S/S ROD 1.0000 HEX Manufacture Method: HOT ROLLED ANNEALED & PICKLED Diameter: 1.0000 Shape: STEEL ROD/BAR HEX Specification: AMS5640 ASTM A582
Sku: 07801 Description: 303 CF S/S ROD 1.5000 DIA Manufacture Method: Air Melt Diameter: 1.5000 Shape: STEEL ROD/BAR ROUND Specification: AMS5640 ASTM A582

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Available shapes: Hexes, Rounds, Squares

Specifications: ASTM A582, AMS 5640, AMS QQ-S-764B Cond A

Typical Chemical Properties
Minimum Properties
Tensile Strength , psi 85,000
Yield Strength, psi 45,000
Elongation 50%
Hardness Rb 180
Chemistry
Carbon( C) .15 max
Chrome (Cr) 17.0- 19.0
Manganese (Mn) 2.0 max
Nickel ( Ni) 8.0 -10.0
Phosphorus (P) 0.20 max
Sulphur (S) .15 min
Silicon (Si) 1.00 max