
Stainless Steel 304L scrap clean technical specifications and commercial data without element chemical symbols for solid scrap and turning scrap:
Material Identification
Material Grade: Stainless Steel 304L / UNS S30303 / 1.4306 / 1.4307
Alloy Class: Extra-Low Carbon Austenitic Stainless Steel
Magnetic Nature: Non-magnetic (in fully annealed state; may exhibit slight magnetism in heavily cold-worked solids or fine turnings)
Scrap Type: Clean Solid Scrap / Clean Turning Scrap (free of free moisture, heavy oil, oxide scale, tramp iron, paint, and foreign debris)
Chemical Composition Limits (Percent by Weight)
Chromium: 18.00 to 20.00
Nickel: 8.00 to 12.00
Carbon: 0.030 Maximum
Manganese: 2.00 Maximum
Silicon: 0.75 Maximum
Phosphorus: 0.045 Maximum
Sulfur: 0.030 Maximum
Nitrogen: 0.10 Maximum
Iron: Balance
Physical Forms and Categories
Solid Scrap (Heavy Melt Grade):
Heavy plate cut-offs and skeleton edges
Solid round, square, and flat bar cut-offs
Heavy stampings, drop-offs, and forging flash
Pipe and tubing crop ends
Turning Scrap (Machining Chips):
Clean lathe turnings, borings, and millings
Short, crushed, or shredded turnings (free of long bushy turnings for remelting efficiency)
Physical and Thermal Properties
Density: 8.00 grams per cubic centimeter
Melting Point Range: 1400 to 1450 degrees Celsius
Continuous Service Temperature: Up to 870 degrees Celsius in air
Quality and Contamination Thresholds
Solid Scrap:
Minimum Thickness: 3.0 millimeters (1/8 inch) and heavier
Non-Metallic Contamination: Less than 0.5 percent
Oil and Grease Attachment: Nil / Solvent-cleaned or degreased
Turning Scrap:
Oil and Cutting Fluid Content: Less than 1.0 to 2.0 percent by weight (centrifuged/degreased preferred for furnace safety)
Free Water and Moisture: Zero allowable free fluid (must be dry to prevent steam explosion during charging)
Tramp Metal & Dirt: Less than 1.0 percent (zero high-sulfur free-machining scrap, zero carbon steel turnings, zero non-ferrous metals)
Primary Industrial Applications for Remelting
Corrosion-resistant chemical storage tanks and pressure vessels
Food, beverage, and dairy processing machinery
Pharmaceutical equipment and piping systems
Architectural hardware and welded structural components
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