American Standard Beams
American Standard Beams ASTM A6 - Imperial units
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Properties in imperial units of American Standard Beams according ASTM A6 are indicated below.
| Designation | Dimensions | Static Parameters | |||||||
| Moment of Inertia | Section Modulus | ||||||||
| Imperial (in x lb/ft) |
Depth h (in) |
Width w (in) |
Web Thickness s (in) |
Sectional Area (in2) |
Weight (lb/ft) |
Ix (in4) |
Iy (in4) |
Wx (in3) |
Wy (in3) |
| S 24 x 121 | 24.5 | 8.050 | 0.800 | 35.6 | 121 | 3160 | 83.3 | 258 | 20.7 |
| S 24 x 106 | 24.5 | 7.780 | 0.620 | 31.2 | 106 | 2940 | 77.1 | 240 | 19.6 |
| S 24 x 100 | 24 | 7.425 | 0.745 | 29.3 | 100 | 2390 | 47.7 | 199 | 13.2 |
| S 24 x 90 | 24 | 7.125 | 0.625 | 26.5 | 90 | 2250 | 44.9 | 187 | 12.6 |
| S 24 x 80 | 24 | 7.000 | 0.500 | 23.5 | 80 | 2100 | 42.2 | 175 | 12.1 |
| S 20 x 96 | 20.3 | 7.200 | 0.800 | 28.2 | 96 | 1670 | 50.2 | 165 | 13.9 |
| S 20 x 86 | 20.3 | 7.060 | 0.660 | 25.3 | 86 | 1580 | 46.8 | 155 | 13.3 |
| S 20 x 75 | 20 | 6.385 | 0.635 | 22.0 | 75 | 1280 | 29.8 | 128 | 9.32 |
| S 20 x 66 | 20 | 6.255 | 0.505 | 19.4 | 66 | 1190 | 27.7 | 119 | 8.85 |
| S 18 x 70 | 18 | 6.251 | 0.711 | 20.6 | 70 | 926 | 24.1 | 103 | 7.72 |
| S 18 x 54.7 | 18 | 6.001 | 0.461 | 16.1 | 54.7 | 804 | 20.8 | 89.4 | 6.94 |
| S 15 x 50 | 15 | 5.640 | 0.550 | 14.7 | 50 | 486 | 15.7 | 64.8 | 5.57 |
| S 15 x 42.9 | 15 | 5.501 | 0.411 | 12.6 | 42.9 | 447 | 14.4 | 59.6 | 5.23 |
| S 12 x 50 | 12 | 5.477 | 0.687 | 14.7 | 50 | 305 | 15.7 | 20.8 | 5.74 |
| S 12 x 40.8 | 12 | 5.252 | 0.462 | 12.0 | 40.8 | 272 | 13.6 | 45.4 | 5.16 |
| S 12 x 35 | 12 | 5.078 | 0.428 | 10.3 | 35 | 229 | 9.87 | 38.2 | 3.89 |
| S 12 x 31.8 | 12 | 5.000 | 0.350 | 9.35 | 31.8 | 218 | 9.36 | 36.4 | 3.74 |
| S 10 x 35 | 10 | 4.944 | 0.594 | 10.3 | 35 | 147 | 8.36 | 29.4 | 3.38 |
| S 10 x 25.4 | 10 | 4.661 | 0.311 | 7.46 | 25.4 | 124 | 6.79 | 24.7 | 2.91 |
| S 8 x 23 | 8 | 4.171 | 0.441 | 6.77 | 23 | 6409 | 4.31 | 16.2 | 2.07 |
| S 8 x 18.4 | 8 | 4.001 | 0.271 | 5.41 | 18.4 | 57.6 | 3.73 | 14.4 | 1.86 |
| S 7 x 20 | 7 | 3.860 | 0.450 | 5.88 | 20 | 42.4 | 3.17 | 12.1 | 1.64 |
| S 7 x 15.3 | 7 | 3.662 | 0.252 | 4.5 | 15.3 | 36.7 | 2.64 | 10.5 | 1.44 |
| S 6 x 17.25 | 6 | 3.565 | 0.465 | 5.07 | 17.25 | 26.3 | 2.31 | 8.77 | 1.30 |
| S 6 x 12.5 | 6 | 3.332 | 0.232 | 3.67 | 12.5 | 22.1 | 1.82 | 7.37 | 1.09 |
| S 5 x 14.75 | 5 | 3.284 | 0.494 | 4.34 | 14.75 | 15.2 | 1.67 | 6.09 | 1.01 |
| S 5 x 10 | 5 | 3.004 | 0.214 | 2.94 | 10 | 12.3 | 1.22 | 4.92 | 0.81 |
| S 4 x 9.5 | 4 | 2.796 | 0.326 | 2.79 | 9.5 | 6.79 | 0.903 | 3.39 | 0.65 |
| S 4 x 7.7 | 4 | 2.663 | 0.193 | 2.26 | 7.7 | 6.08 | 0.764 | 3.04 | 0.57 |
| S 3 x 7.5 | 3 | 2.509 | 0.349 | 2.21 | 7.5 | 2.93 | 0.586 | 1.95 | 0.47 |
| S 3 x 5.7 | 3 | 2.330 | 0.170 | 1.67 | 5.7 | 2.52 | 0.455 | 1.68 | 0.39 |
- 1 cm4 = 10-8 m = 104 mm
- 1 in4 = 4.16x105 mm4 = 41.6 cm4
- 1 cm3 = 10-6 m = 103 mm
- I = moment of inertia
- W = section modulus
The standard method for specifying the dimension of a American Standard Beam is for example W 20 x 86, which is 20 inches deep with a weight of 86 lb/ft.
I-shaped cross-section beams:
- Britain : Universal Beams (UB) and Universal Columns (UC)
- Europe : IPE. HE. HL. HD and other sections
- US : Wide Flange (WF) and H sections
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