熱軋型材Q345B角鋼理論性知識及庫存規格表
Q345B角鋼 :Q345B角鋼可按結構的不同需要組成各種不同的受力構件，也可作構件之間的連接件。廣泛地用于各種建筑結構和工程結構，如房梁、橋梁、輸電塔、起重運輸機械、船舶、工業爐、反應塔、容器架、電纜溝支架、動力配管、母線支架安裝、以及倉庫貨架等。角鋼屬建造用碳素結構鋼，是簡單斷面的型鋼鋼材，主要用于金屬構件及廠房的框架等。在使用中要求有較好的可焊性、塑性變形性能及一定的機械強度。生產角鋼的原料鋼坯為低碳方鋼坯，成品角鋼為熱軋成形、正火或熱軋狀態交貨。
Q345B角鋼主要分為等邊角鋼和不等邊角鋼兩類，其中不等邊角鋼又可分為不等邊等厚及不等邊不等厚兩種。
熱軋型材Q345B角鋼理論重量預覽表：
| 型號 | 尺寸（mm) | 理論重量（kg/m) | 型號 | 尺寸（mm) | 理論重量（kg/m) | |||
| b | d | b | d | |||||
| 2 | 20 | 3 | 0.889 | 18 | 180 | 12 | 33.159 | |
| 4 | 1.145 | 14 | 38.383 | |||||
| 2.5 | 25 | 3 | 1.124 | 15 | 43.542 | |||
| 4 | 1.459 | 18 | 48.634 | |||||
| 3 | 30 | 3 | 1.373 | 20 | 200 | 14 | 42.894 | |
| 4 | 1.786 | 16 | 48.680 | |||||
| 3.6 | 36 | 3 | 1.656 | 18 | 54.401 | |||
| 4 | 2.163 | 20 | 60.056 | |||||
| 5 | 2.654 | 24 | 71.168 | |||||
| 4 | 40 | 2.5 | 2.306 | 不等邊角鋼 | ||||
| 3 | 1.852 | 型號 | 尺寸（mm) | 理論重量（kg/m) | ||||
| 4 | 2.422 | B | b | d | ||||
| 5 | 2.976 | 2.5/1.6 | 25 | 16 | 3 | 0.912 | ||
| 4.5 | 45 | 3 | 2.088 | 4 | 1.176 | |||
| 4 | 2.736 | 3.2/2 | 32 | 20 | 3 | 1.171 | ||
| 5 | 3.369 | 4 | 1.522 | |||||
| 6 | 3.985 | 4/2.5 | 40 | 25 | 3 | 1.484 | ||
| 5 | 50 | 3 | 2.332 | 4 | 1.936 | |||
| 4 | 3.059 | 4.5/2.8/3.0 | 45 | 28 30 | 3 | 1.687 | ||
| 5 | 3.770 | 4 | 2.203 | |||||
| 6 | 4.465 | 5 | 2.251 | |||||
| 5.6 | 56 | 3 | 2.624 | 5/3.2 | 50 | 32 | 3 | 1.908 |
| 4 | 3.446 | 4 | 2.494 | |||||
| 5 | 4.251 | 5.6/3.6 | 56 | 36 | 3 | 2.153 | ||
| 8 | 6.568 | 4 | 2.818 | |||||
| 6.3 | 63 | 4 | 3.907 | 5 | 3.466 | |||
| 5 | 4.822 | 6.3/4 | 63 | 40 | 4 | 3.185 | ||
| 6 | 5.721 | 5 | 3.920 | |||||
| 8 | 7.469 | 6 | 4.638 | |||||
| 10 | 9.151 | 7 | 5.339 | |||||
| 7 | 70 | 4 | 4.372 | 7/4.5 | 70 | 45 | 4 | 3.570 |
| 5 | 5.397 | 5 | 4.403 | |||||
| 6 | 6.406 | 6 | 5.218 | |||||
| 7 | 7.398 | 7 | 6.011 | |||||
| 8 | 8.373 | 7.5/5 | 75 | 50 | 5 | 4.808 | ||
| 7.5 | 75 | 5 | 5.818 | 6 | 5.699 | |||
| 6 | 6.905 | 8 | 7.431 | |||||
| 7 | 7.976 | 10 | 9.098 | |||||
| 8 | 9.030 | 8/5.0 | 80 | 50 | 5 | 5.005 | ||
| 10 | 11.089 | 6 | 5.935 | |||||
| 8 | 80 | 5 | 6.211 | 7 | 6.848 | |||
| 6 | 7.376 | 8 | 7.745 | |||||
| 7 | 8.525 | 9/5.6 | 90 | 56 | 5 | 5.661 | ||
| 8 | 9.658 | 6 | 6.717 | |||||
| 10 | 11.874 | 7 | 7.756 | |||||
| 9 | 90 | 6 | 8.350 | 8 | 8.779 | |||
| 7 | 9.656 | 10/6.3 | 100 | 63 | 6 | 7.550 | ||
| 8 | 10.946 | 7 | 8.722 | |||||
| 10 | 13.476 | 8 | 9.878 | |||||
| 12 | 15.940 | 10 | 12.142 | |||||
| 10 | 100 | 6 | 9.366 | 10/8. | 100 | 80 | 6 | 8.350 |
| 7 | 10.830 | 7 | 9.656 | |||||
| 8 | 12.276 | 8 | 10.946 | |||||
| 10 | 15.120 | 10 | 13.476 | |||||
| 12 | 17.898 | 11/7. | 110 | 70 | 6 | 8.350 | ||
| 14 | 20.611 | 7 | 9.656 | |||||
| 15 | 23.257 | 8 | 10.946 | |||||
| 11 | 110 | 7 | 11.928 | 10 | 13.476 | |||
| 8 | 13.532 | 12.5/8 | 125 | 80 | 7 | 11.066 | ||
| 10 | 16.690 | 8 | 12.551 | |||||
| 12 | 19.782 | 10 | 15.474 | |||||
| 14 | 22.809 | 12 | 18.330 | |||||
| 12.5 | 125 | 8 | 15.504 | 14/9. | 140 | 90 | 8 | 14.160 |
| 10 | 19.133 | 10 | 17.475 | |||||
| 12 | 22.696 | 12 | 20.724 | |||||
| 14 | 26.193 | 14 | 23.908 | |||||
| 14 | 140 | 10 | 21.488 | 16/10. | 160 | 100 | 10 | 19.872 |
| 12 | 25.522 | 12 | 23.592 | |||||
| 14 | 29.490 | 14 | 27.247 | |||||
| 16 | 33.393 | 15 | 30.835 | |||||
| 16 | 160 | 10 | 24.729 | 18/11. | 180 | 110 | 10 | 22.273 |
| 12 | 29.391 | 12 | 26.464 | |||||
| 14 | 33.987 | 14 | 30.589 | |||||
| 16 | 38.518 | 15 | 36.649 | |||||
| 18 | 180 | 12 | 33.159 | 20/12.5 | 200 | 125 | 12 | 29.761 |
| 14 | 38.383 | 14 | 34.436 | |||||
| 15 | 43.542 | 16 | 39.045 | |||||
| 18 | 48.634 | 18 | 43.588 | |||||
| 20 | 200 | 14 | 42.894 | |||||
| 16 | 48.680 | |||||||
| 18 | 54.401 | |||||||
| 20 | 60.056 | |||||||
| 24 | 71.168 | |||||||