GB/T 34201
GB/T 34201 (结构用方形和矩形热轧无缝钢管)· GB (中国) · 30 种材料
| 名称 | 材料组别 | |
|---|---|---|
| 10 | 结构钢 | chevron_right |
| 20 | 结构钢 | chevron_right |
| 20Mn2 | 结构钢 | chevron_right |
| 35 | 结构钢 | chevron_right |
| 45 | 结构钢 | chevron_right |
| Q195 | 结构钢 | chevron_right |
| Q215A | 结构钢 | chevron_right |
| Q215B | 结构钢 | chevron_right |
| Q235A | 结构钢 | chevron_right |
| Q235B | 结构钢 | chevron_right |
| Q235C | 结构钢 | chevron_right |
| Q235D | 结构钢 | chevron_right |
| Q345A | 结构钢 | chevron_right |
| Q345B | 结构钢 | chevron_right |
| Q345C | 结构钢 | chevron_right |
| Q345D | 结构钢 | chevron_right |
| Q345E | 结构钢 | chevron_right |
| Q390A | 结构钢 | chevron_right |
| Q390B | 结构钢 | chevron_right |
| Q390C | 结构钢 | chevron_right |
| Q390D | 结构钢 | chevron_right |
| Q390E | 结构钢 | chevron_right |
| Q420A | 结构钢 | chevron_right |
| Q420B | 结构钢 | chevron_right |
| Q420C | 结构钢 | chevron_right |
| Q420D | 结构钢 | chevron_right |
| Q420E | 结构钢 | chevron_right |
| Q460C | 结构钢 | chevron_right |
| Q460D | 结构钢 | chevron_right |
| Q460E | 结构钢 | chevron_right |