GOST R 50278
GOST R 50278 (Drill pipes with weld-on tool joints. Specifications)· GOST (Russia) · 7 materials
| Designation | Alternative designation | Material group | |
|---|---|---|---|
| D | Д | Structural and constructional steels | chevron_right |
| E | Е | Structural and constructional steels | chevron_right |
| Grade L | Л | Structural and constructional steels | chevron_right |
| Grade M | М | Structural and constructional steels | chevron_right |
| Grade R | Р | Structural and constructional steels | chevron_right |
| T | Т | Structural and constructional steels | chevron_right |
| U | У | Structural and constructional steels | chevron_right |