STAINLESS STEEL
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Quality of Microstructure of Duplex Stainless Steels
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Flat Bar or Gauered Flat Bar from Plate
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Metal Dusting
Metal Dusting is a hazard when using heat-treat carburizing furnaces and petrochemical equipment. Explore how high-chromium alloys thwart this destructive
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Manganese Substitution Grades of Stainless Steel
Explore the evolution of stainless steel with manganese substitution grades, offering cost-effective solutions for industries like appliances and food equipment.
PRODEC® 303
Rolled Alloys Machining Quality (PRODEC®) 303 is a fully resulfurized free-machining austenitic stainless steel melted and processed to maximize machinability. It should be considered for automatic screw machines where extensive machining is required. PRODEC® 303 is nonmagnetic in the annealed condition but may become slightly magnetic as a result of cold working.
PRODEC® 303 is resistant to mildly corrosive atmospheres but is inferior to 304 because of the high sulfur content. For optimum corrosion resistance, it is recommended that PRODEC® 303 be chemically treated to remove sulfides from the final surface of the parts.
The high sulfur content, added for machinability, is detrimental to hot workability. If hot forming is necessary, PRODEC® 304 or an intermediate sulfur level should be considered. When forging is necessary, it should be done in the 1800-2200°F range, and should be followed by annealing at 1900°F minimum and water quenching or rapid cooling by other means.The cold formability of PRODEC® 303 is limited by the sulfur content. Bending with a generous bend radius may be considered for PRODEC® 303. When cold forming is required, PRODEC® 304 should be considered.
PRODEC® 303 is not recommended for applications requiring welding. The high sulfur level in PRODEC® 303 makes it prone to weld solidification cracking. If welding is necessary, AWS E312 filler metal may be considered.
PRODEC® 303 is easily machined and produces small brittle chips. PRODEC® 303 may be machined at high speeds with deep cuts and heavy feeds on powerful, rigid equipment using good lubricants and sharp tooling.
- Melted and processed to maximize machinability
- Improved machinability over 304/304L and 316/316L
UNS: S30300
W. NR.: 1.4305
ASTM: A 582
AMS: 5640
PRODEC® 303 Hex Bar, PRODEC® 303 Round Bar
- Automatic screw machines
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