1 inch steel plate weight
199.39 kg/m² · 40.84 lb/ft²
A 1 inch (25.40 mm) carbon steel plate weighs 199.39 kg per square metre: 25.400 mm × 7.85 kg/(m²·mm).
Weight of standard plate sizes
| Plate size | kg | lb |
|---|---|---|
| 4 × 8 ft | 592.8 | 1,306.8 |
| 4 × 10 ft | 741.0 | 1,633.5 |
| 5 × 10 ft | 926.2 | 2,041.9 |
| 8 × 20 ft | 2,963.8 | 6,534.1 |
Same thickness in other metals
| Material | kg/m² | lb/ft² |
|---|---|---|
| Stainless steel 304 | 201.42 | 41.25 |
| Aluminum | 68.58 | 14.05 |
| Copper | 227.58 | 46.61 |
| Brass | 215.90 | 44.22 |
Weight of cut pieces
Base plates, gussets, cleats and flange blanks are cut from plate. Weights below are for the full square or disc, before holes, slots or chamfers.
| Square piece | kg | lb |
|---|---|---|
| 4 × 4 in | 2.06 | 4.54 |
| 6 × 6 in | 4.63 | 10.21 |
| 8 × 8 in | 8.23 | 18.15 |
| 10 × 10 in | 12.86 | 28.36 |
| 12 × 12 in | 18.52 | 40.84 |
| 18 × 18 in | 41.68 | 91.89 |
| 24 × 24 in | 74.10 | 163.35 |
| 48 × 48 in | 296.38 | 653.41 |
| Round disc | kg | lb |
|---|---|---|
| Ø 4 in | 1.62 | 3.56 |
| Ø 8 in | 6.47 | 14.26 |
| Ø 12 in | 14.55 | 32.07 |
| Ø 24 in | 58.19 | 128.30 |
| Ø 48 in | 232.78 | 513.19 |
For any other shape, multiply the area by 199.39 kg/m² (40.84 lb/ft²). For a ring or a plate with a hole, subtract the hole's area.
Sheets per short ton
| Sheet size | Sheets |
|---|---|
| 4 × 8 ft | 1.5 |
| 5 × 10 ft | 1.0 |
| 8 × 20 ft | 0.3 |
Compared with nearby thicknesses
| Thickness | kg/m² | lb/ft² | vs 1 inch |
|---|---|---|---|
| 5/8 in | 124.62 | 25.52 | −38 % |
| 3/4 in | 149.54 | 30.63 | −25 % |
| 1 in | 199.39 | 40.84 | — |
| 1-1/4 in | 249.24 | 51.05 | +25 % |
| 1-1/2 in | 299.08 | 61.26 | +50 % |
The nearest standard metric thickness is 25 mm (25.00 mm, 196.25 kg/m²). Plate this thick is used for heavy base plates, crane girder flanges, machine beds, press frames, pressure vessels and wear parts.
Hot-rolled plate is made to a thickness tolerance (EN 10029 in Europe, ASTM A6 in the US). These tolerances allow more over-thickness than under-thickness, so weighbridge weights can come out a little above the theoretical weight.
Frequently asked questions
How much does 1 inch steel plate weigh per square foot?
40.84 lb/ft²: 1.0000 in × 40.8 lb per ft² per inch.
How much does a 4 × 8 sheet of 1 inch steel plate weigh?
1,306.8 lb (32 ft² × 40.84 lb/ft²). A 5 × 10 ft sheet weighs 2,041.9 lb.
What is the metric equivalent of 1 inch plate?
The nearest standard metric thickness is 25 mm (25.00 mm). They are not identical, so check tolerances and weights if you substitute.
How much does a 12 × 12 in piece of 1 inch plate weigh?
40.84 lb (1 ft² × 40.84 lb/ft²), before holes or chamfers.
How much does 1 inch aluminum or stainless plate weigh?
Aluminum 1 inch plate weighs about 68.58 kg/m², stainless steel 304 about 201.42 kg/m².
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