Section 15 Base metals and articles of base metal 72 Iron and steel 72 13 Iron/steel bars androds, hot-rolled, in irregularly wound coils 72 13 91 Other, containing by weight 0.6 % or more of carbon, not more than 0.03 % of phosphor 72 13 91 30 Other, containing by weight 0.6 % or more of carbon, not more than 0.03 % of phosphor Commodity Code Description 72 13 91 30 00 Other, containing by weight 0.6 % or more of carbon, not more than 0.03 % of phosphor