Standard Specification for Ferrocolumbium (Ferroniobium)
NORMA vydána dne 1.9.2025
Označení normy: ASTM A550-16(2025)
Datum vydání normy: 1.9.2025
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: 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)