Section 15 BASE METALS AND ARTICLES OF BASE METAL 81 Other base metals; cermets; articles thereof 81 09 Zirconium and articles thereof, including waste and scrap. 81 09 20 81 09 20 00 Commodity Code Description 81 09 20 00 00 - Unwrought zirconium; powders 81 09 21 00 00 Containing less than 1 part hafnium to 500 parts zirconium by weight 81 09 29 00 00 Other 81 09 30 00 00 - Waste and scrap 81 09 31 00 00 Containing less than 1 part hafnium to 500 parts zirconium by weight 81 09 39 00 00 Other 81 09 90 00 00 - Other 81 09 91 00 00 Containing less than 1 part hafnium to 500 parts zirconium by weight 81 09 99 00 00 Other