JIS G 3194より一部引用
| サイズ | 厚さ (mm) | 幅 (mm) | 断面積 (cm²) | 単位質量 (kg/m) |
|---|---|---|---|---|
| FB25×4.5 | 4.5 | 25 | 1.125 | 0.883 |
| FB32×4.5 | 4.5 | 32 | 1.44 | 1.13 |
| FB38×4.5 | 4.5 | 38 | 1.71 | 1.34 |
| FB44×4.5 | 4.5 | 44 | 1.98 | 1.55 |
| FB50×4.5 | 4.5 | 50 | 2.25 | 1.77 |
| FB65×4.5 | 4.5 | 65 | 2.925 | 2.3 |
| FB75×4.5 | 4.5 | 75 | 3.375 | 2.65 |
| FB90×4.5 | 4.5 | 90 | 4.05 | 3.18 |
| FB100×4.5 | 4.5 | 100 | 4.5 | 3.53 |
| FB125×4.5 | 4.5 | 125 | 5.625 | 4.42 |
| FB150×4.5 | 4.5 | 150 | 6.75 | 5.3 |
| FB25×6 | 6 | 25 | 1.5 | 1.18 |
| FB32×6 | 6 | 32 | 1.92 | 1.51 |
| FB38×6 | 6 | 38 | 2.28 | 1.79 |
| FB44×6 | 6 | 44 | 2.64 | 2.07 |
| FB50×6 | 6 | 50 | 3 | 2.36 |
| FB65×6 | 6 | 65 | 3.9 | 3.06 |
| FB75×6 | 6 | 75 | 4.5 | 3.53 |
| FB90×6 | 6 | 90 | 5.4 | 4.24 |
| FB100×6 | 6 | 100 | 6 | 4.71 |
| FB125×6 | 6 | 125 | 7.5 | 5.89 |
| FB150×6 | 6 | 150 | 9 | 7.06 |
| FB180×6 | 6 | 180 | 10.8 | 8.48 |
| FB200×6 | 6 | 200 | 12 | 9.42 |
| FB230×6 | 6 | 230 | 13.8 | 10.8 |
| FB250×6 | 6 | 250 | 15 | 11.8 |
| FB280×6 | 6 | 280 | 16.8 | 13.2 |
| FB300×6 | 6 | 300 | 18 | 14.1 |
| FB25×8 | 8 | 25 | 2 | 1.57 |
| FB32×8 | 8 | 32 | 2.56 | 2.01 |
| FB38×8 | 8 | 38 | 3.04 | 2.39 |
| FB44×8 | 8 | 44 | 3.52 | 2.76 |
| FB50×8 | 8 | 50 | 4 | 3.14 |
| FB65×8 | 8 | 65 | 5.2 | 4.08 |
| FB75×8 | 8 | 75 | 6 | 4.71 |
| FB90×8 | 8 | 90 | 7.2 | 5.65 |
| FB100×8 | 8 | 100 | 8 | 6.28 |
| FB125×8 | 8 | 125 | 10 | 7.85 |
| FB150×8 | 8 | 150 | 12 | 9.42 |
| FB180×8 | 8 | 180 | 14.4 | 11.3 |
| FB200×8 | 8 | 200 | 16 | 12.6 |
| FB230×8 | 8 | 230 | 18.4 | 14.4 |
| FB250×8 | 8 | 250 | 20 | 15.7 |
| FB280×8 | 8 | 280 | 22.4 | 17.6 |
| FB300×8 | 8 | 300 | 24 | 18.8 |
| FB350×8 | 8 | 350 | 28 | 22 |
| FB400×8 | 8 | 400 | 32 | 25.1 |
| FB25×9 | 9 | 25 | 2.25 | 1.77 |
| FB32×9 | 9 | 32 | 2.88 | 2.26 |
| FB38×9 | 9 | 38 | 3.42 | 2.68 |
| FB44×9 | 9 | 44 | 3.96 | 3.11 |
| FB50×9 | 9 | 50 | 4.5 | 3.53 |
| FB65×9 | 9 | 65 | 5.85 | 4.59 |
| FB75×9 | 9 | 75 | 6.75 | 5.3 |
| FB90×9 | 9 | 90 | 8.1 | 6.36 |
| FB100×9 | 9 | 100 | 9 | 7.06 |
| FB125×9 | 9 | 125 | 11.25 | 8.83 |
| FB150×9 | 9 | 150 | 13.5 | 10.6 |
| FB180×9 | 9 | 180 | 16.2 | 12.7 |
| FB200×9 | 9 | 200 | 18 | 14.1 |
| FB230×9 | 9 | 230 | 20.7 | 16.2 |
| FB250×9 | 9 | 250 | 22.5 | 17.7 |
| FB280×9 | 9 | 280 | 25.2 | 19.8 |
| FB300×9 | 9 | 300 | 27 | 21.2 |
| FB350×9 | 9 | 350 | 31.5 | 24.7 |
| FB400×9 | 9 | 400 | 36 | 28.3 |
| FB25×12 | 12 | 25 | 3 | 2.36 |
| FB32×12 | 12 | 32 | 3.84 | 3.01 |
| FB38×12 | 12 | 38 | 4.56 | 3.58 |
| FB44×12 | 12 | 44 | 5.28 | 4.14 |
| FB50×12 | 12 | 50 | 6 | 4.71 |
| FB65×12 | 12 | 65 | 7.8 | 6.12 |
| FB75×12 | 12 | 75 | 9 | 7.06 |
| FB90×12 | 12 | 90 | 10.8 | 8.48 |
| FB100×12 | 12 | 100 | 12 | 9.42 |
| FB125×12 | 12 | 125 | 15 | 11.8 |
| FB150×12 | 12 | 150 | 18 | 14.1 |
| FB180×12 | 12 | 180 | 21.6 | 17 |
| FB200×12 | 12 | 200 | 24 | 18.8 |
| FB230×12 | 12 | 230 | 27.6 | 21.7 |
| FB250×12 | 12 | 250 | 30 | 23.6 |
| FB280×12 | 12 | 280 | 33.6 | 26.4 |
| FB300×12 | 12 | 300 | 36 | 28.3 |
| FB350×12 | 12 | 350 | 42 | 33 |
| FB400×12 | 12 | 400 | 48 | 37.7 |
| FB32×16 | 16 | 32 | 5.12 | 4.02 |
| FB38×16 | 16 | 38 | 6.08 | 4.77 |
| FB44×16 | 16 | 44 | 7.04 | 5.53 |
| FB50×16 | 16 | 50 | 8 | 6.28 |
| FB65×16 | 16 | 65 | 10.4 | 8.16 |
| FB75×16 | 16 | 75 | 12 | 9.42 |
| FB90×16 | 16 | 90 | 14.4 | 11.3 |
| FB100×16 | 16 | 100 | 16 | 12.6 |
| FB125×16 | 16 | 125 | 20 | 15.7 |
| FB150×16 | 16 | 150 | 24 | 18.8 |
| FB180×16 | 16 | 180 | 28.8 | 22.6 |
| FB200×16 | 16 | 200 | 32 | 25.1 |
| FB230×16 | 16 | 230 | 36.8 | 28.9 |
| FB250×16 | 16 | 250 | 40 | 31.4 |
| FB280×16 | 16 | 280 | 44.8 | 35.2 |
| FB300×16 | 16 | 300 | 48 | 37.7 |
| FB350×16 | 16 | 350 | 56 | 44 |
| FB400×16 | 16 | 400 | 64 | 50.2 |
| FB450×16 | 16 | 450 | 72 | 56.5 |
| FB500×16 | 16 | 500 | 80 | 62.8 |
| FB38×19 | 19 | 38 | 7.22 | 5.67 |
| FB44×19 | 19 | 44 | 8.36 | 6.56 |
| FB50×19 | 19 | 50 | 9.5 | 7.46 |
| FB65×19 | 19 | 65 | 12.35 | 9.69 |
| FB75×19 | 19 | 75 | 14.25 | 11.2 |
| FB90×19 | 19 | 90 | 17.1 | 13.4 |
| FB100×19 | 19 | 100 | 19 | 14.9 |
| FB125×19 | 19 | 125 | 23.75 | 18.6 |
| FB150×19 | 19 | 150 | 28.5 | 22.4 |
| FB180×19 | 19 | 180 | 34.2 | 26.8 |
| FB200×19 | 19 | 200 | 38 | 29.8 |
| FB230×19 | 19 | 230 | 43.7 | 34.3 |
| FB250×19 | 19 | 250 | 47.5 | 37.3 |
| FB280×19 | 19 | 280 | 53.2 | 41.8 |
| FB300×19 | 19 | 300 | 57 | 44.7 |
| FB350×19 | 19 | 350 | 66.5 | 52.2 |
| FB400×19 | 19 | 400 | 76 | 59.7 |
| FB450×19 | 19 | 450 | 85.5 | 67.1 |
| FB500×19 | 19 | 500 | 95 | 74.6 |
| FB50×22 | 22 | 50 | 11 | 8.64 |
| FB65×22 | 22 | 65 | 14.3 | 11.2 |
| FB75×22 | 22 | 75 | 16.5 | 13 |
| FB90×22 | 22 | 90 | 19.8 | 15.5 |
| FB100×22 | 22 | 100 | 22 | 17.3 |
| FB125×22 | 22 | 125 | 27.5 | 21.6 |
| FB150×22 | 22 | 150 | 33 | 25.9 |
| FB180×22 | 22 | 180 | 39.6 | 31.1 |
| FB200×22 | 22 | 200 | 44 | 34.5 |
| FB230×22 | 22 | 230 | 50.6 | 39.7 |
| FB250×22 | 22 | 250 | 55 | 43.2 |
| FB280×22 | 22 | 280 | 61.6 | 48.4 |
| FB300×22 | 22 | 300 | 66 | 51.8 |
| FB350×22 | 22 | 350 | 77 | 60.4 |
| FB400×22 | 22 | 400 | 88 | 69.1 |
| FB450×22 | 22 | 450 | 99 | 77.7 |
| FB500×22 | 22 | 500 | 110 | 86.4 |
| FB50×25 | 25 | 50 | 12.5 | 9.81 |
| FB65×25 | 25 | 65 | 16.25 | 12.8 |
| FB75×25 | 25 | 75 | 18.75 | 14.7 |
| FB90×25 | 25 | 90 | 22.5 | 17.7 |
| FB100×25 | 25 | 100 | 25 | 19.6 |
| FB125×25 | 25 | 125 | 31.25 | 24.5 |
| FB150×25 | 25 | 150 | 37.5 | 29.4 |
| FB180×25 | 25 | 180 | 45 | 35.3 |
| FB200×25 | 25 | 200 | 50 | 39.2 |
| FB230×25 | 25 | 230 | 57.5 | 45.1 |
| FB250×25 | 25 | 250 | 62.5 | 49.1 |
| FB280×25 | 25 | 280 | 70 | 55 |
| FB300×25 | 25 | 300 | 75 | 58.9 |
| FB350×25 | 25 | 350 | 87.5 | 68.7 |
| FB400×25 | 25 | 400 | 100 | 78.5 |
| FB450×25 | 25 | 450 | 112.5 | 88.3 |
| FB500×25 | 25 | 500 | 125 | 98.1 |