GB/T 34201
GB/T 34201 (Seamless hot-rolled square and rectangular steel tubes for structure)· GB (China) · 30 materials
| Designation | Material group | |
|---|---|---|
| 10 | Structural and constructional steels | chevron_right |
| 20 | Structural and constructional steels | chevron_right |
| 20Mn2 | Structural and constructional steels | chevron_right |
| 35 | Structural and constructional steels | chevron_right |
| 45 | Structural and constructional steels | chevron_right |
| Q195 | Structural and constructional steels | chevron_right |
| Q215A | Structural and constructional steels | chevron_right |
| Q215B | Structural and constructional steels | chevron_right |
| Q235A | Structural and constructional steels | chevron_right |
| Q235B | Structural and constructional steels | chevron_right |
| Q235C | Structural and constructional steels | chevron_right |
| Q235D | Structural and constructional steels | chevron_right |
| Q345A | Structural and constructional steels | chevron_right |
| Q345B | Structural and constructional steels | chevron_right |
| Q345C | Structural and constructional steels | chevron_right |
| Q345D | Structural and constructional steels | chevron_right |
| Q345E | Structural and constructional steels | chevron_right |
| Q390A | Structural and constructional steels | chevron_right |
| Q390B | Structural and constructional steels | chevron_right |
| Q390C | Structural and constructional steels | chevron_right |
| Q390D | Structural and constructional steels | chevron_right |
| Q390E | Structural and constructional steels | chevron_right |
| Q420A | Structural and constructional steels | chevron_right |
| Q420B | Structural and constructional steels | chevron_right |
| Q420C | Structural and constructional steels | chevron_right |
| Q420D | Structural and constructional steels | chevron_right |
| Q420E | Structural and constructional steels | chevron_right |
| Q460C | Structural and constructional steels | chevron_right |
| Q460D | Structural and constructional steels | chevron_right |
| Q460E | Structural and constructional steels | chevron_right |