
Stainless Steel 304N foundry scrap clean technical specifications and commercial data without element chemical symbols:
Material Identification
Material Grade: Stainless Steel 304N / UNS S30451 / 1.4311
Alloy Class: Nitrogen-Strengthened Austenitic Stainless Steel
Magnetic Nature: Non-magnetic (in fully annealed state; low magnetic permeability after severe cold work)
Scrap Type: Foundry Grade Clean Scrap (free of oil, paint, slag, scale, heavy dirt, and foreign attachments)
Chemical Composition Limits (Percent by Weight)
Chromium: 18.00 to 20.00
Nickel: 8.00 to 10.50
Nitrogen: 0.10 to 0.16
Manganese: 2.00 Maximum
Silicon: 0.75 Maximum
Carbon: 0.08 Maximum
Phosphorus: 0.045 Maximum
Sulfur: 0.030 Maximum
Iron: Balance
Physical Forms and Types
Heavy plate cut-offs and sheet crop ends
Solid bar cut-offs and forging flash
Heavy punchings, drop-offs, and stampings
Clean ingot ends and structural offcuts
Heavy-wall pipe and tube crop ends
Physical and Thermal Properties
Density: 8.00 grams per cubic centimeter
Melting Point Range: 1400 to 1450 degrees Celsius
Yield Strength (Annealed): Significantly higher than standard Grade 304 due to nitrogen addition
Maximum Continuous Service Temperature: Up to 870 degrees Celsius in air
Quality and Contamination Thresholds
Minimum Thickness: 3.0 millimeters (1/8 inch) and heavier preferred for heavy foundry melt-charge
Total Non-Metallic Contamination: Less than 0.5 percent
Moisture Content: Dry / Zero surface fluid
Oil and Grease Attachment: Nil / Solvent-cleaned or degreased
Foreign Alloy Mixing: Zero allowable high-sulfur, leaded, carbon steel, or non-nitrogen low-strength standard scrap additions
Primary Industrial Applications for Remelting
High-strength pressure vessels and storage tanks
Heavy structural components requiring elevated yield strength
Chemical processing tanks, valves, and fluid control equipment
Cryogenic vessels and specialized mechanical hardware
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