法国 · AFNOR NF

TU 15 D 3

NF A49-213 — Steel tubes. Seamless unalloyed and Mo and Cr-Mo alloyed steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical delivrery conditions

化学成分

元素minmax相似备注
Al0.025
C0.120.2
Cr0.3
Cu0.25
Mn0.50.8
Mo0.250.35
Ni0.3
P0.035
S0.035
Si0.150.35
Sn0.03

力学性能

热处理 / 状态屈服强度抗拉强度伸长率断面收缩率冲击功硬度
无缝钢管, 钢管  Heat treated≤265≤430≤22