“Heavy waste” is the abbreviation of “heavy scrap”, which is a kind of scrap. According to the scrap steel standard (GB4223-2004) officially implemented by the country on December 1, 2004, it can be divided into three categories:

Class 1: The code is 201a, the external dimensions and weight requirements are ≤1000mmX400mm, the thickness is ≥40mm, the single weight is 40kg～1500kg, and the cylindrical solid body diameter is ≥80mm. The shape of the supply is block, strip, plate and type. Typical scrap steels are: scrap steel ingots, billets, blanks, cut ends, tail cuts, steel castings, steel rolls, heavy machinery parts, cutting structural parts, etc.

Class 2: The code is 201B, the dimensions and weight requirements are ≤1000mmX500mm, the thickness is ≥25mm, the single weight is 20kg～1500kg, and the supply shape is cylindrical solid body diameter ≥50mm. Supply shape is block, strip, plate, type, typical scrap steel examples: scrap steel ingots, billets, blanks, cutting heads, tails, steel castings, steel rolls, heavy machinery parts, cutting structural parts, axles, waste industry Equipment, etc.

Class 3: Code is 201C, external dimensions and weight requirements ≤1500mmX800mm, thickness ≥15mm, single weight: 5kg～1500kg, supply shape is cylindrical solid body diameter ≥30mm. Supply shape is block, strip, plate, type, typical scrap steel Example: scrap steel ingot, billet, rough billet, cutting head, tail cutting, steel casting, steel roll, train shaft, rail, pipe, heavy machinery parts, cutting Structural parts, axles, used industrial equipment, etc.

The difference with other varieties:

Heavy waste, medium waste belongs to scrap heavy waste refers to heavy scrap, such as castings, rolls, heavy machinery parts and other single pieces weighing more than tens of kilograms;

The medium waste is a light weight of the single weight of the train shaft and the rail. 

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