Standard Specification for Ferrocolumbium (Ferroniobium)
NORMA vydaná dňa 1.9.2025
Označenie normy: ASTM A550-16(2025)
Dátum vydania normy: 1.9.2025
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
This specification covers three grades of ferrocolumbium, designated low-alloy steel grade, alloy and stainless steel grade, and high-purity grade. The material shall conform to the requirements as to chemical composition. Also, the ferrocolumbium shall be available in the sizes and tolerances specified.
Keywords:
columbium (niobium), ferrocolumbium (ferroniobium), tantalum,, ICS Number Code 77.100 (Ferroalloys)