표준
AISI, ASTM, bs, DIN, GB, JIS
Equivalent grades
X45NiCrMo4 / 1.2767 /45NiCr Mo16 / 6F7/SNCM2
Surface treatment
Black/grinded/machined/turned
Production route
EF/EAF+LF+VD/ESR
Quality inspection
UT, Chemical test, Microstructure, Physical properties etc.
UT test standard
SEP1921-84 class3 C/c to D/d