304 stainless steel scrap: commercial definition, inspection and variability

304 scrap refers to material represented as belonging to the 304 austenitic stainless family, often from sheet, tube, tanks, equipment or production offcuts. Shape and origin support identification but do not prove an alloy designation.

Names including 304, 304L, EN 1.4301 and EN 1.4307 are related references, not automatically interchangeable contract terms. Standards, product forms and low-carbon variants should be stated as represented, then checked to the parties’ agreed protocol.

Controls may combine source segregation, markings, handheld analysis, magnet response and laboratory tests where appropriate. Particular attention goes to mixing with 316, 200-series stainless, ferritic grades, carbon steel, coatings, oils and attached hardware.

Identified 304-family scrap may return to stainless melt shops or qualified processors for sorting, sizing and blending. Furnace recipes and purchasing limits are plant-specific, so the page does not infer chemistry or melt contribution from a label.

Sheet skeletons, pipe, baled light gauge and fabricated assemblies differ in density and contamination risk. Loading plans should address sharp edges, trapped liquids, closed vessels, radiation controls where required, weight basis and traceable origin.