All Firmetal niobium and Nb1Zr products meet or exceed American Society for Testing and Materials (ASTM) specifications for proerties such as chemical, tensile, etc., as specified in ANSI / ASTM specifications:
B 391 - Standard Specification for Niobium and Niobium Alloy Ingots;
B 392 - Standard Specification for Niobium and Niobium Alloy Bar, Rod and Wire;
B 393 - Standard Specification for Niobium and Niobium Alloy Strip, Sheet, Foil and Plate;
B 394 - Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes.