Section 15 Base metals and articles of base metal 72 Iron and steel 72 01 Pig iron and spiegeleisen in pigs, blocks or other primary forms 72 01 10 - Non-alloy pig iron containing by weight 0.5% or less of phosphorous Commodity Code Description 72 01 10 00 - Non-alloy pig iron containing by weight 0.5% or less of phosphorous