Steel scraps shall be considered free of alloys when the residual alloying
elements do not exceed the following percentages: percent
Nickel ( 0.45 )
Chromium ( 0.20 )
Molybdenum ( 0.10 )
Manganese ( 1.65 )
The combined residuals other than manganese shall not exceed a total of
0.60 percent.
ISRI-CODES:

200 No. 1 heavy melting steel.
Wrought iron and/or steel scrap 1/4 inch and over in thickness. Individual
pieces not over 60 x 24 inches (charging box size) prepared in a manner to
insure compact charging.

201 No. 1 heavy melting steel 3 feet x 18 inches.
Wrought iron and/or steel scrap 1/4 inch and over in thickness. Individual
pieces not over 36 inches x 18 inches (charging box size) prepared in a
manner to insure compact charging.

202 No. 1 heavy melting steel 5 feet x 18 inches.
Wrought iron and/or steel scrap 1/4 inch and over in thickness. Individual
pieces not over 60 inches x 18 inches (charging box size) prepared in a
manner to insure compact charging.

203 No. 2 heavy melting steel.
Wrought iron and steel scrap, black and galvanized, 1/8 inch and over in
thickness, charging box size to include material not suitable as No. 1
heavy melting steel. Prepared in a manner to insure compact charging.

204 No. 2 heavy melting steel.
Wrought iron and steel scrap, black and galvanized, maximum size 36 x 18
inches. May include all automobile scrap properly prepared.

205 No. 2 heavy melting steel 3 feet x 18 inches.
Wrought iron and steel scrap, black and galvanized, maximum size 36 x 18
inches. May include automobile scrap, properly prepared, however, to be
free of sheet iron or thin gauged material.

206 No. 2 heavy melting steel 5 feet x 18 inches.
Wrought iron and steel scrap, black and galvanized, maximum size 60 x 18
inches. May include automobile scrap, properly prepared, however, to be
free of sheet iron or thin gauged material.