MS angle weight chart and angle weight calculator in kg/m.
MS angle weight (kg/m) = (A + B − t) × t × 0.00785, with legs A and B and thickness t in mm. A 50 × 50 × 6 mm angle (ISA 50 × 50 × 6) weighs about 4.5 kg/m, so a 6 m length weighs 27 kg. Enter any equal or unequal angle below, or read the chart further down.
Theoretical weight from nominal size and density. Actual weight varies within mill tolerances.
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MS angle weight chart: equal angles (kg per metre)
The formula column is (2A − t) × t × 0.00785 for mild steel with a square corner. The published column is the nominal mass of hot-rolled equal angles from the INSDAG section table, which includes the root radius; it is used for the 6 m weight where available. Sizes and rolling programmes vary by mill, so confirm availability before ordering.
| Size A × A × t, mm | MS kg/m (formula) | MS kg/m (published) | MS 6 m length, kg | SS 304 kg/m (formula) |
|---|---|---|---|---|
| 20 × 20 × 3 | 0.87 | – | 5.2 | 0.88 |
| 25 × 25 × 3 | 1.11 | – | 6.6 | 1.12 |
| 25 × 25 × 5 | 1.77 | – | 10.6 | 1.78 |
| 30 × 30 × 3 | 1.34 | – | 8.1 | 1.36 |
| 30 × 30 × 5 | 2.16 | – | 13.0 | 2.18 |
| 35 × 35 × 5 | 2.55 | 2.6 | 15.6 | 2.58 |
| 35 × 35 × 6 | 3.01 | 3.0 | 18.0 | 3.05 |
| 40 × 40 × 5 | 2.94 | – | 17.7 | 2.97 |
| 40 × 40 × 6 | 3.49 | – | 20.9 | 3.52 |
| 45 × 45 × 5 | 3.34 | – | 20.0 | 3.37 |
| 45 × 45 × 6 | 3.96 | – | 23.7 | 4.00 |
| 50 × 50 × 5 | 3.73 | 3.8 | 22.8 | 3.77 |
| 50 × 50 × 6 | 4.43 | 4.5 | 27.0 | 4.47 |
| 50 × 50 × 8 | 5.78 | – | 34.7 | 5.84 |
| 60 × 60 × 5 | 4.51 | 4.5 | 27.0 | 4.56 |
| 60 × 60 × 6 | 5.37 | 5.4 | 32.4 | 5.42 |
| 60 × 60 × 8 | 7.03 | – | 42.2 | 7.11 |
| 65 × 65 × 6 | 5.84 | 5.8 | 34.8 | 5.90 |
| 65 × 65 × 8 | 7.66 | – | 46.0 | 7.74 |
| 75 × 75 × 6 | 6.78 | 6.8 | 40.8 | 6.85 |
| 75 × 75 × 8 | 8.92 | 8.9 | 53.4 | 9.01 |
| 75 × 75 × 10 | 10.99 | – | 65.9 | 11.10 |
| 80 × 80 × 8 | 9.55 | – | 57.3 | 9.64 |
| 90 × 90 × 6 | 8.20 | 8.2 | 49.2 | 8.28 |
| 90 × 90 × 8 | 10.80 | 10.8 | 64.8 | 10.91 |
| 90 × 90 × 10 | 13.35 | – | 80.1 | 13.48 |
| 100 × 100 × 8 | 12.06 | 12.1 | 72.6 | 12.18 |
| 100 × 100 × 10 | 14.92 | 14.9 | 89.4 | 15.07 |
| 100 × 100 × 12 | 17.71 | – | 106.3 | 17.89 |
| 110 × 110 × 8 | 13.31 | 13.4 | 80.4 | 13.45 |
| 110 × 110 × 10 | 16.49 | 16.6 | 99.6 | 16.65 |
| 130 × 130 × 10 | 19.63 | – | 117.8 | 19.83 |
| 130 × 130 × 12 | 23.36 | – | 140.2 | 23.60 |
| 150 × 150 × 10 | 22.77 | – | 136.6 | 23.00 |
| 150 × 150 × 12 | 27.13 | – | 162.8 | 27.41 |
| 150 × 150 × 16 | 35.67 | – | 214.0 | 36.03 |
| 200 × 200 × 12 | 36.55 | – | 219.3 | 36.92 |
| 200 × 200 × 16 | 48.23 | – | 289.4 | 48.72 |
| 200 × 200 × 20 | 59.66 | – | 358.0 | 60.27 |
For an unequal angle such as 75 × 50 × 6, enter both legs in the calculator above: (75 + 50 − 6) × 6 × 0.00785 = 5.60 kg/m. For beams and channels see the ISMB and ISMC weight chart.
Reference basis: Compiled by Steel Impex India. Check each table’s source, product form and delivery condition before use. Sources, calculation methods and corrections.
Frequently asked questions
How do you calculate MS angle weight in kg? (formula)
Weight per metre (kg) = (A + B − t) × t × 7.85 / 1000, with legs A, B and thickness t in mm. This treats the corner as square; rolled angles with a root radius weigh up to about 2% more.
What is the weight of a 50 × 50 × 6 angle?
About 4.5 kg per metre in the published IS 808 table (4.43 kg/m by the square-corner formula), or 27 kg for a 6 m length.
What is the weight of a 65 × 65 × 6 angle?
5.8 kg per metre in the published table, or 34.8 kg for a 6 m length.
What is the weight of a 75 × 75 × 8 angle?
8.9 kg per metre, or 53.4 kg for a 6 m length.
What does ISA mean in angle sizes?
ISA is Indian Standard Angle. ISA 50 × 50 × 6 is an equal angle with two 50 mm legs and 6 mm thickness; older drawings write it as ISA 5050 × 6.
Does leg × leg × thickness fully describe an angle order?
It identifies key dimensions but not the complete order. Also specify material grade, governing standard, length, quantities and any processing or certificate requirements. Corner and root geometry affect theoretical mass.