Спецификация | Толщина стены | Ранг | Стандартно | |
в | mm | mm | ||
2 3/8 | 60.3 | 3.5∼7 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
3 | 76.1 | 4∼5.7 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
3 1/2 | 88.9 | 4∼10 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
4 1/2 | 114.3 | 4.5∼10 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
5 1/2 | 139.7 | 4.5∼10 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
6 5/8 | 168.3 | 4.5∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
7 | 177.8 | 4.5∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
7 3/5 | 193.7 | 4.5∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
8 5/8 | 219.1 | 4.5∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
9 5/8 | 244.5 | 6∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
10 3/4 | 273 | 6∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
12 3/4 | 323.9 | 7∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
14 | 355 | 7∼14 | NO.10 NO.20 Q235B Q345B | GB/T8163-1999 |
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