Nonalloy pig iron containing by weight 0,5 % or less of phosphorus

Nonalloy pig iron in pigs, blocks or other primary forms, containing by weight < 0,5% phosphorus, and < 0,1% manganese

Nonalloy pig iron in pigs, blocks or other primary forms, containing by weight < 0,5% phosphorus, and > 0,1% but < 0,4% manganese

Containing by weight less than 0,1 % of manganese