Types of Scrap

 

• Mill Scrap / Process Scrap
  • Generated during rolling, slitting, cutting, and finishing of steel.
  • Includes:
    • CR/HR Sheet & Coil Scrap (Cold Rolled / Hot Rolled)
    • GP/GA/GI Scrap (Galvanized steel, Galvalume, etc.)
    • Stamping & Punching Scrap (leftovers from automotive/white goods sheet cutting)
    • Trimmings & End Cuts

 

• Defective/Rejected Material
  • Non-prime coils or sheets (damaged during production, off-gauge, surface defects, dented coils).
  • May be sold as secondary steel or downgraded scrap.

 

• Turnings & Boring Scrap
  • Produced from machining operations (mainly if has fabrication lines).

 

• EAF/Blast Furnace Scrap (smaller quantity)
  • Scale, slag, or byproducts during smelting/refining.

 

Scrap Metal Category Classification

Globally, steel scrap is classified under Ferrous Scrap, and within that, scrap falls into:

• Heavy Melting Scrap (HMS) – If cut into melting grade size.
  • HMS 1: Steel scrap without galvanized/tinned coating.
  • HMS 2: May include galvanized or thinner scrap.

 

• Busheling Scrap – Clean, new sheet scrap (from stamping, punching, cutting of cold rolled/galvanized steel).
  • Produces a lot of busheling because of its automotive-grade steel supply.

 

• Shredded Scrap – If processed further by shredders
• Bundles / Pressed Scrap – Thin sheets compressed into bundles.
• Secondary Steel (Non-Prime Coils/Sheets) – Not exactly "scrap" but sold as non-prime stock (usable in re-rolling mills).

 

Summary

• Scrap category → Mainly Busheling (new sheet scrap), HMS, and Secondary Steel / Non-Prime Coils.
• End-use → Goes to foundries, rolling mills, re-rollers, and steel smelters for remelting into new products.