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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » S Section Steel I Beam » S6 × 12.5

For a simply supported beam in a single span, the maximum displacement and the maximum normal stress occur at the center of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 22.1 in4) for the S6 × 12.5 S Section Steel I Beam and the typical Young's modulus (E = 3.046 × 107 psi) of steels. Note that the typical yielding stress of steels can range from 1.015 × 104 to 2.970 × 105 psi. The purpose of this page is to give a rough estimation of the load-bearing capacity of this particular beam, rather than a guideline for designing actual building structures. Please check your local building codes for regulatory requirements.
Note: The weight of the beam itself is not included in the calculation.

 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 12.5 3.38 × 10-5 22.9 20.0 5.42 × 10-5 36.7 30.0 8.12 × 10-5 55.0 40.0 1.08 × 10-4 73.3 50.0 1.35 × 10-4 91.6 60.0 1.62 × 10-4 110 70.0 1.90 × 10-4 128 80.0 2.17 × 10-4 147 90.0 2.44 × 10-4 165 100 2.71 × 10-4 183 200 5.42 × 10-4 367 300 8.12 × 10-4 550 400 0.00108 733 500 0.00135 916 600 0.00162 1100 700 0.00190 1280 800 0.00217 1470 900 0.00244 1650 1000 0.00271 1830 2000 0.00542 3670 3000 0.00812 5500 4000 0.0108 7330 5000 0.0135 9160 6000 0.0162 1.10 × 104 7000 0.0190 1.28 × 104 8000 0.0217 1.47 × 104 9000 0.0244 1.65 × 104 1.00 × 104 0.0271 1.83 × 104 2.00 × 104 0.0542 3.67 × 104 3.00 × 104 0.0812 5.50 × 104 4.00 × 104 0.108 7.33 × 104 5.00 × 104 0.135 9.16 × 104 6.00 × 104 0.162 1.10 × 105 7.00 × 104 0.190 1.28 × 105 8.00 × 104 0.217 1.47 × 105 9.00 × 104 0.244 1.65 × 105 1.00 × 105 0.271 1.83 × 105 1.62 × 105 0.439 2.97 × 105
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 12.5 2.61 × 10-4 63.6 20.0 4.18 × 10-4 102 30.0 6.27 × 10-4 153 40.0 8.36 × 10-4 204 50.0 0.00104 255 60.0 0.00125 305 70.0 0.00146 356 80.0 0.00167 407 90.0 0.00188 458 100 0.00209 509 200 0.00418 1020 300 0.00627 1530 400 0.00836 2040 500 0.0104 2550 600 0.0125 3050 700 0.0146 3560 800 0.0167 4070 900 0.0188 4580 1000 0.0209 5090 2000 0.0418 1.02 × 104 3000 0.0627 1.53 × 104 4000 0.0836 2.04 × 104 5000 0.104 2.55 × 104 6000 0.125 3.05 × 104 7000 0.146 3.56 × 104 8000 0.167 4.07 × 104 9000 0.188 4.58 × 104 1.00 × 104 0.209 5.09 × 104 2.00 × 104 0.418 1.02 × 105 3.00 × 104 0.627 1.53 × 105 4.00 × 104 0.836 2.04 × 105 5.00 × 104 1.04 2.55 × 105 5.84 × 104 1.22 2.97 × 105
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 12.5 0.00418 255 20.0 0.00669 407 30.0 0.0100 611 40.0 0.0134 814 50.0 0.0167 1020 60.0 0.0201 1220 70.0 0.0234 1430 80.0 0.0267 1630 90.0 0.0301 1830 100 0.0334 2040 200 0.0669 4070 300 0.100 6110 400 0.134 8140 500 0.167 1.02 × 104 600 0.201 1.22 × 104 700 0.234 1.43 × 104 800 0.267 1.63 × 104 900 0.301 1.83 × 104 1000 0.334 2.04 × 104 2000 0.669 4.07 × 104 3000 1.00 6.11 × 104 4000 1.34 8.14 × 104 5000 1.67 1.02 × 105 6000 2.01 1.22 × 105 7000 2.34 1.43 × 105 8000 2.67 1.63 × 105 9000 3.01 1.83 × 105 1.00 × 104 3.34 2.04 × 105 1.46 × 104 4.88 2.97 × 105
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 12.5 0.0212 573 20.0 0.0338 916 30.0 0.0508 1370 40.0 0.0677 1830 50.0 0.0846 2290 60.0 0.102 2750 70.0 0.118 3210 80.0 0.135 3670 90.0 0.152 4120 100 0.169 4580 200 0.338 9160 300 0.508 1.37 × 104 400 0.677 1.83 × 104 500 0.846 2.29 × 104 600 1.02 2.75 × 104 700 1.18 3.21 × 104 800 1.35 3.67 × 104 900 1.52 4.12 × 104 1000 1.69 4.58 × 104 2000 3.38 9.16 × 104 3000 5.08 1.37 × 105 3550 6.00 1.62 × 105
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 12.5 0.0669 1020 20.0 0.107 1630 30.0 0.160 2440 40.0 0.214 3260 50.0 0.267 4070 60.0 0.321 4890 70.0 0.374 5700 80.0 0.428 6520 90.0 0.481 7330 100 0.535 8140 200 1.07 1.63 × 104 300 1.60 2.44 × 104 400 2.14 3.26 × 104 500 2.67 4.07 × 104 600 3.21 4.89 × 104 700 3.74 5.70 × 104 800 4.28 6.52 × 104 900 4.81 7.33 × 104 1000 5.35 8.14 × 104 1120 6.00 9.14 × 104
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 12.5 0.163 1590 20.0 0.261 2550 30.0 0.392 3820 40.0 0.522 5090 50.0 0.653 6360 60.0 0.783 7640 70.0 0.914 8910 80.0 1.04 1.02 × 104 90.0 1.18 1.15 × 104 100 1.31 1.27 × 104 200 2.61 2.55 × 104 300 3.92 3.82 × 104 400 5.22 5.09 × 104 460 6.00 5.85 × 104
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 12.5 0.338 2290 20.0 0.542 3670 30.0 0.812 5500 40.0 1.08 7330 50.0 1.35 9160 60.0 1.62 1.10 × 104 70.0 1.90 1.28 × 104 80.0 2.17 1.47 × 104 90.0 2.44 1.65 × 104 100 2.71 1.83 × 104 200 5.42 3.67 × 104 222 6.00 4.06 × 104
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 12.5 1.07 4070 20.0 1.71 6520 30.0 2.57 9770 40.0 3.42 1.30 × 104 50.0 4.28 1.63 × 104 60.0 5.13 1.95 × 104 70.0 5.99 2.28 × 104 70.1 6.00 2.28 × 104
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 12.5 2.61 6360 20.0 4.18 1.02 × 104 28.7 6.00 1.46 × 104
 Steel I Beam: S6 × 12.5 (S Section 6 inch tall × 12.5 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 12.5 5.42 9160 13.9 6.00 1.02 × 104
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Guide for high quality and cost-effective plastic injection molding.

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