德国 · DIN

EStE 255

DIN 17123:1986 — Welded circular fine grain steel tubes for structural steelwork; technical delivery conditions

化学成分

元素minmax相似备注
Al0.02
C0.16
Cr0.3
Cu0.2
Mn0.51.3
Mo0.08
N0.02
Nb0.03
Ni0.3
P0.025
S0.015
Si0.4