8 mm steel plate weight
62.80 kg/m² · 12.86 lb/ft²
A 8 mm (8.00 mm) carbon steel plate weighs 62.80 kg per square metre: 8.000 mm × 7.85 kg/(m²·mm).
Weight of standard plate sizes
| Plate size | kg | lb |
|---|---|---|
| 1000 × 2000 mm | 125.6 | 276.9 |
| 1250 × 2500 mm | 196.3 | 432.7 |
| 1500 × 3000 mm | 282.6 | 623.0 |
| 1500 × 6000 mm | 565.2 | 1,246.1 |
| 2000 × 6000 mm | 753.6 | 1,661.4 |
Same thickness in other metals
| Material | kg/m² | lb/ft² |
|---|---|---|
| Stainless steel 304 | 63.44 | 12.99 |
| Aluminum | 21.60 | 4.42 |
| Copper | 71.68 | 14.68 |
| Brass | 68.00 | 13.93 |
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 |
|---|---|---|
| 100 × 100 mm | 0.63 | 1.38 |
| 150 × 150 mm | 1.41 | 3.12 |
| 200 × 200 mm | 2.51 | 5.54 |
| 250 × 250 mm | 3.93 | 8.65 |
| 300 × 300 mm | 5.65 | 12.46 |
| 400 × 400 mm | 10.05 | 22.15 |
| 500 × 500 mm | 15.70 | 34.61 |
| 1000 × 1000 mm | 62.80 | 138.45 |
| Round disc | kg | lb |
|---|---|---|
| Ø 100 mm | 0.49 | 1.09 |
| Ø 200 mm | 1.97 | 4.35 |
| Ø 300 mm | 4.44 | 9.79 |
| Ø 500 mm | 12.33 | 27.18 |
| Ø 1000 mm | 49.32 | 108.74 |
For any other shape, multiply the area by 62.80 kg/m² (12.86 lb/ft²). For a ring or a plate with a hole, subtract the hole's area.
Sheets per tonne
| Sheet size | Sheets |
|---|---|
| 1250 × 2500 mm | 5.1 |
| 1500 × 3000 mm | 3.5 |
| 2000 × 6000 mm | 1.3 |
Compared with nearby thicknesses
| Thickness | kg/m² | lb/ft² | vs 8 mm |
|---|---|---|---|
| 5 mm | 39.25 | 8.04 | −38 % |
| 6 mm | 47.10 | 9.65 | −25 % |
| 8 mm | 62.80 | 12.86 | — |
| 10 mm | 78.50 | 16.08 | +25 % |
| 12 mm | 94.20 | 19.29 | +50 % |
The nearest standard inch thickness is 5/16 in (7.94 mm, 62.31 kg/m²). This thickness is common for base plates of light columns, gussets, brackets, cleats, stiffeners, chequer plate floors and tank shells.
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
What is the weight of 8 mm steel plate per square metre?
62.80 kg/m²: 8.00 mm × 7.85 kg per m² per mm.
How much does a 1500 × 3000 mm sheet of 8 mm plate weigh?
282.6 kg (4.5 m² × 62.80 kg/m²). A 1250 × 2500 mm sheet weighs 196.3 kg.
What is the inch equivalent of 8 mm plate?
The nearest standard inch thickness is 5/16 in (7.94 mm). They are not identical, so check tolerances and weights if you substitute.
How much does a 300 × 300 mm piece of 8 mm plate weigh?
5.65 kg (0.09 m² × 62.80 kg/m²), before holes or chamfers.
How much does 8 mm aluminum or stainless plate weigh?
Aluminum 8 mm plate weighs about 21.60 kg/m², stainless steel 304 about 63.44 kg/m².
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