양반 같은 철강재, Super High Grade Steel

steelmax2019-01-28T14:45:17+09:005월 26th, 2018|

UNS No. S17700.
ASTM A564 Type631

ASME SA564 Type631
KS STS631

JIS SUS631
EN X7CrNiAl17-7….STEEL No 1.4568