Research Article
Mechanical Properties of High-Nb X80 Steel Weld Pipes for the Second West-to-East Gas Transmission Pipeline Project
Figure 2
Distribution histogram of C and alloying elements in the steels from different mills: (a) C; (b) Mn; (c) Nb; (d) Cr-Mo-Ni-Cu.
(a) |
(b) |
(c) |
(d) |