 Plate and Structural Steel Electronic Furnace Casting and Foundry Grades IRSI 231 - Plate and Structural Steel, 5 feet and under. Cut structural and plate scrap, 5 feet and under. Clean open hearth steel plates, structural shapes, crop ends, shearings, or broken steel tires. Dimensions not less than 1/4 inch thickness, not over 5 feet in length and 18 inches in width. phosphorus or sulphur not over 0.05 percent. IRSI 232 - Plate and Structural Steel, 5 feet and under. Cut structural and plate scrap, 5 feet and under. Clean open hearth steel plates, structural shapes, crop ends, shearings, or broken steel tires. Dimensions not less than 1/4 inch thickness, not over 5 feet in length and 24 inches in width. phosphorus or sulphur not over 0.05 percent. _____________________________________________________________________________________________________________________ |