G 3439
G 3439 (Seamless steel oil well casing, tubing and drill pipe)· JIS (Japan) · 7 materials
| Designation | Material group | |
|---|---|---|
| STO-C | Structural and constructional steels | chevron_right |
| STO-D | Structural and constructional steels | chevron_right |
| STO-E | Structural and constructional steels | chevron_right |
| STO-G | Structural and constructional steels | chevron_right |
| STO-H | Structural and constructional steels | chevron_right |
| STO-J | Structural and constructional steels | chevron_right |
| STO-N | Structural and constructional steels | chevron_right |