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  | 
 寬  度/mm  | 
 厚  度/mm  | 
 長  度  | |||||
| 
 尺寸  | 
 允許偏差  | 
 尺寸  | 
 允許偏差  | 
 尺寸/m  | 
 允許偏差/m  | ||
| 
 普通級  | 
 較高級  | 
 普通級  | 
 較高級  | ||||
| 
 lO~50  | 
 +O.5 
-1.O 
+0.6  | 
 +O.3 
-O.9 
+O.4  | 
 3~16  | 
 +0.3 
-0.5  | 
 +O.2 
-O.4  | 
 ≤4  | 
 +300  | 
| 
 >50~ 75  | 
 -1.3  | 
 -1.2  | 
 >4~6  | 
 +50O  | |||
| 
 >75 
~100  | 
 +O.9 
-1.8  | 
 +O.7 
-1.7  | 
 >16 
~60  | 
 +1.5% 
-3.O%  | 
 +1.O% 
-2.5%  | ||
| 
 >100 
~200  | 
 +1.O 
-2.O%  | 
 +O.8 
-1.8%  | 
 ≥6  | 
 +700  | |||
| 
 扁鋼寬度  /mm  | 
 在下列厚度時扁鋼的理論質量/(kg/m)  | ||||||||||||||
| 
 5  | 
 6  | 
 7  | 
 8  | 
 9  | 
 10  | 
 11  | 
 12  | 
 14  | 
 15  | 
 16  | 
 18  | 
 20  | 
 25  | 
 30  | |
| 
 8  | 
 O.31  | 
 0.38  | 
 0.44  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 lO  | 
 0.39  | 
 O.47  | 
 0.55  | 
 O.63  | 
 O.71  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 12  | 
 O.47  | 
 O.55  | 
 O.66  | 
 0.75  | 
 0.85  | 
 0.94  | 
 1.04  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 13  | 
 O.51  | 
 O.6l  | 
 O.71  | 
 0.82  | 
 O.92  | 
 1.02  | 
 1.12  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 14  | 
 0.55  | 
 O.66  | 
 0.77  | 
 0.88  | 
 0.99  | 
 1.10  | 
 1.2l  | 
 1.32  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 15  | 
 0.59  | 
 O.71  | 
 0.82  | 
 O.94  | 
 1.06  | 
 1.18  | 
 1.29  | 
 1.41  | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 16  | 
 O.63  | 
 0.75  | 
 O.88  | 
 1.00  | 
 1.13  | 
 1.26  | 
 1.38  | 
 1.5l  | 
 1.76  | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 18  | 
 0.7l  | 
 O.85  | 
 O.99  | 
 1.13  | 
 1.27  | 
 1.41  | 
 1.55  | 
 1.70  | 
 1.96  | 
 2.12  | 
 2.26  | 
 | 
 | 
 | 
 | 
| 
 20  | 
 0.78  | 
 O.94  | 
 1.10  | 
 1.26  | 
 1.41  | 
 1.57  | 
 1.73  | 
 1.88  | 
 2.28  | 
 2.36  | 
 2.51  | 
 2.63  | 
 | 
 | 
 | 
| 
 22  | 
 0.86  | 
 1.04  | 
 1.2l  | 
 1.38  | 
 1.55  | 
 1.73  | 
 1.90  | 
 2.07  | 
 2.42  | 
 2.69  | 
 2.76  | 
 3.11  | 
 3.45  | 
 | 
 | 
| 
 24  | 
 O.94  | 
 1.13  | 
 1.32  | 
 1.5l  | 
 1.69  | 
 1.88  | 
 2.07  | 
 2.26  | 
 2.64  | 
 2.83  | 
 3.01  | 
 3.39  | 
 3.77  | 
 | 
 | 
| 
 扁鋼寬度  /mm  | 
 在下列厚度時扁鋼的理論質量/(kg/m)  | |||||||||||||||
| 
 5  | 
 6  | 
 7  | 
 8  | 
 9  | 
 10  | 
 1l  | 
 12  | 
 14  | 
 15  | 
 16  | 
 18  | 
 20  | 
 25  | 
 30  | ||
| 
 25  | 
 O.98  | 
 1.18  | 
 1.37  | 
 1.57  | 
 1.77  | 
 1.96  | 
 2.16  | 
 2.36  | 
 2.75  | 
 2.94  | 
 3.14  | 
 3.53  | 
 3.92  | 
 | 
 | |
| 
 28  | 
 1.10  | 
 1.32  | 
 1.54  | 
 1.76  | 
 1.98  | 
 2.20  | 
 2.42  | 
 2.64  | 
 3.08  | 
 3.28  | 
 3.52  | 
 3.96  | 
 4.40  | 
 5.49  | 
 | |
| 
 30  | 
 1.18  | 
 1.41  | 
 1.65  | 
 1.88  | 
 2.12  | 
 2.36  | 
 2.59  | 
 2.83  | 
 3.30  | 
 3.53  | 
 3.77  | 
 4.24  | 
 4.7l  | 
 5.89  | 
 | |
| 
 32  | 
 | 
 1.5l  | 
 1.76  | 
 2.01  | 
 2.26  | 
 2.51  | 
 2.76  | 
 3.Ol  | 
 3.52  | 
 3.77  | 
 4.02  | 
 5.02  | 
 5.02  | 
 6.28  | 
 7.54  | |
| 
 35  | 
 | 
 1.65  | 
 1.92  | 
 2.19  | 
 2.47  | 
 2.75  | 
 3.02  | 
 3.29  | 
 3.85  | 
 4.12  | 
 4.39  | 
 4.95  | 
 5.49  | 
 6.87  | 
 8.24  | |
| 
 36  | 
 | 
 1.70  | 
 1.98  | 
 2.26  | 
 2.54  | 
 2.83  | 
 3.11  | 
 3.39  | 
 3.96  | 
 4.24  | 
 4.52  | 
 5.09  | 
 5.65  | 
 7.06  | 
 8.48  | |
| 
 38  | 
 | 
 | 
 2.09  | 
 2.39  | 
 2.68  | 
 2.98  | 
 3.28  | 
 3.58  | 
 4.18  | 
 4.47  | 
 4.77  | 
 5.37  | 
 5.97  | 
 7.46  | 
 8.95  | |
| 
 40  | 
 | 
 | 
 2.20  | 
 2.5l  | 
 2.83  | 
 3.14  | 
 3.45  | 
 3.77  | 
 4.40  | 
 4.71  | 
 5.02  | 
 5.65  | 
 6.20  | 
 7.85  | 
 9.42  | |
| 
 45  | 
 | 
 | 
 | 
 2.83  | 
 3.18  | 
 3.53  | 
 3.89  | 
 4.24  | 
 4.95  | 
 5.29  | 
 5.65  | 
 6.36  | 
 7.06  | 
 8.83  | 
 lO.60  | |
| 
 50  | 
 | 
 | 
 | 
 | 
 3.53  | 
 3.92  | 
 4.32  | 
 4.7l  | 
 5.50  | 
 5.89  | 
 6.28  | 
 7.06  | 
 7.85  | 
 9.81  | 
 11.78  | |
						
  | ||