HTS code 7201.10.00.00 covers "Pig iron and spiegeleisen in pigs, blocks or other primary forms › Nonalloy pig iron containing by weight 0.5 percent or less of phosphorus" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.