GOST R 71991
GOST R 71991 (Steel welded pipes, produced by submerged arc welding for lower temperatures. Technical specifications)· GOST (Russie) · 14 matériaux
| Désignation | Groupe de matériaux | |
|---|---|---|
| CA 55 | Aciers de construction | chevron_right |
| CB 60 | Aciers de construction | chevron_right |
| CB 65 | Aciers de construction | chevron_right |
| CB 70 | Aciers de construction | chevron_right |
| CC 60 | Aciers de construction | chevron_right |
| CC 65 | Aciers de construction | chevron_right |
| CC 70 | Aciers de construction | chevron_right |
| CD 70 | Aciers de construction | chevron_right |
| CD 80 | Aciers de construction | chevron_right |
| CFA 65 | Aciers de construction | chevron_right |
| CFB 70 | Aciers de construction | chevron_right |
| CFD 65 | Aciers de construction | chevron_right |
| CFE 70 | Aciers de construction | chevron_right |
| CG 100 | Aciers de construction | chevron_right |