1" square carbon steel square bar weighs 3.403 lb per ft (5.06 kg per m). Weight = cross-section area x length x 0.2836 lb per cubic inch.
How much does carbon steel square bar weigh per foot?
| Size | Area (sq in) | lb per ft | kg per m | 12 ft length, lb |
|---|---|---|---|---|
| 0.25" square | 0.0625 | 0.213 | 0.32 | 2.6 |
| 0.375" square | 0.1406 | 0.479 | 0.71 | 5.7 |
| 0.5" square | 0.2500 | 0.851 | 1.27 | 10.2 |
| 0.75" square | 0.5625 | 1.914 | 2.85 | 23.0 |
| 1" square | 1.0000 | 3.403 | 5.06 | 40.8 |
| 1.25" square | 1.5625 | 5.318 | 7.91 | 63.8 |
| 1.5" square | 2.2500 | 7.657 | 11.40 | 91.9 |
| 2" square | 4.0000 | 13.613 | 20.26 | 163.4 |
| 3" square | 9.0000 | 30.629 | 45.58 | 367.5 |
Formula: area = side squared; weight = area x length x 0.2836 lb/in3. For any other size use the metal weight calculator.
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Frequently asked questions
How do you calculate the weight of carbon steel square bar?
Multiply the cross-section area in square inches by the length in inches and by the density, 0.2836 lb per cubic inch for carbon steel (1018 / A36). For this shape the area is: area = side squared. A foot of stock is 12 inches, so weight per foot is area x 12 x 0.2836.
How does carbon steel compare with steel by weight?
Carbon steel is the baseline at 0.2836 lb per cubic inch. Stainless is about 2% heavier, brass about 8% heavier, copper about 14% heavier, and aluminum about 66% lighter for the same size.
Other carbon steel shapes
Square bar in other metals
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Weights from typical published densities; actual alloys and mill tolerances vary by a few percent. Not an engineering load calculation.