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Standard of American scrap iron and steel (1991)

From;    Author:Stand originally
Average level

A. Clean. All grade abandon steel to must not have bilge, do not contain nonferrous metal or any eyewinkers, what cannot have had many is ferruginous and corrode, however, "Without bilge, do not mean the field trash that must not contain accidental interfuse thimbleful without nonferrous metal or the expression of any eyewinker " . In because be in,carrying specific breed to abandon steel, apparent, the field trash that has thimbleful is inevitable.



B. Substandard stock. When the dimension appreciably that contains thimbleful in the scrap iron and steel of the specific breed of delivery sets limits and the stock that cannot satisfy formulary requirement in quality and phyletic respect appreciably more than, if can prove to be in normal treatment and scrap iron and steel of this kind of breed in carrying,containing stock of this kind of substandard is inevitable word, should not change the classified grade of delivery scrap iron and steel.

C. Leftover alloying element. In this standard classification, want not to have the place of tantalum term with " only, tie the leftover alloying element that contains in steel especially, be not adds for refine alloy steel element. Do not exceed the following per cent when leftover tantalum when, can consider as abandon steel without alloying element:

Nickel: 0.45% molybdenum: 0.10% chromium: 0.20% manganese: 1.65%

The gross of all leftover elements outside dividing manganese must not exceed 0.60% .

D. Deviation. Classify any deviation in the standard commonly with scrap iron and steel, talk things over by buyers and sellers solve, NO of ISRI code name. :

Fusion of 200 1 date uses heavy useless steel. Abandon forged steel or useless steel, ply ≥ 1/4 inch, single block dimension must not exceed 60 × 24 inches (dimension of box of feed a machine) , need to be machined can ensure squeezing ramming feed a machine works.

Fusion of 201 1 date uses heavy useless steel, 3 feet of × 18 inches, abandon cast iron or useless steel, ply ≥ 1/4 inch, single block dimension must not exceed 36 × 18 inches, (dimension of box of feed a machine) , need to be machined can make sure squeezing ramming feed a machine works.

Fusion of 202 1 date uses heavy useless steel, 5 feet of × 18 inches. Abandon cast iron or useless steel, ply ≥ 1/4 inch, single block dimension must not exceed 60 × 18 inches (dimension of box of feed a machine) , need to be machined can ensure squeezing ramming feed a machine works.

Fusion of 203 2 date uses heavy useless steel, useless cast iron and / or useless steel, those who do not have coating with galvanization, ply ≥ 1/8 inch, norms of feed a machine includes not to suit a fusion to use the stock of heavy useless steel, need to be machined can ensure squeezing ramming feed a machine works.

Fusion of 204 2 date uses heavy useless steel. Abandon cast iron or useless steel, do not have coating with galvanization, the largest size is 36 × 18 inches, the car that can include all classics to be machined appropriately abandons steel.
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