ISA 120×120×10 Weight, Dimensions and IS 808 Properties
ISA 120×120×10 weighs 18.1 kg per metre as per IS 808:1989.
- One 6-metre length weighs 108.6 kg · one 12-metre length weighs 217.2 kg
- Leg 120 mm × thickness 10 mm · root radius 13.0 mm
- Cross-sectional area 22.99 cm² · Iuu = 286.0 cm⁴
ISA 120×120×10 is a large structural equal-leg angle in IS 808:1989. At 18.1 kg/m with a 120 mm leg it is used for primary chord members in heavy industrial trusses, back-to-back compound column sections, and primary bracing in large structures.
ISA 120×120×10 Weight Calculator
Enter the total length in metres to calculate weight.
ISA 120×120×10 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 120 |
| Thickness | t | mm | 10 |
| Root radius | r1 | mm | 13.0 |
| Cross-sectional area | A | cm² | 22.99 |
| Mass per metre | — | kg/m | 18.1 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 2.87 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 286.0 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 74.36 |
| Elastic section modulus (u–u) | Zuu | cm³ | 33.84 |
| Radius of gyration (u–u) | ruu | cm | 3.53 |
| Radius of gyration (v–v) | rvv | cm | 1.8 |
Dimensions and properties as per IS 808:1989 (Reaffirmed 2001). Mass tolerance: ±3% per piece as per IS 808. u–u is the major principal axis at 45° to both legs; v–v is the minor principal axis. Zvv is not published in IS 808:1989 for angle sections.
Common Applications of ISA 120×120×10
ISA 120×120×10 is used for primary chord members in 24–30 m span industrial trusses, back-to-back built-up compound column sections, primary wind bracing members in tall structures, and heavy bolted gusset plate connections. Stocked by JSPL, Tata Steel, and SAIL in IS 2062 E250 grade.
Worked Example
A structural engineer in Pune specifies ISA 120×120×10 for 10 primary chord members, each 6 m long, for a 28 m span heavy industrial building truss. Total length = 10 × 6 = 60 m. Weight = 60 × 18.1 = 1,086 kg (1.086 tonnes). At ₹62,000 per tonne (Pune, May 2026), material cost is approximately ₹67,332.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 110×110×12 (19.5 kg/m) · ISA 120×120×12 (21.4 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 120×120×10 per metre?
ISA 120×120×10 weighs 18.1 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 108.6 kg. For a 12-metre length, total weight is 217.2 kg.
ISA 120×120×10 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 120×120×10 ka weight 18.1 kg/m hota hai. 6 metre ki ek length ka total weight 108.6 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 120×120×10?
ISA 120×120×10 per IS 808:1989 has a leg length of 120 mm, thickness of 10 mm, and root radius of 13.0 mm. The cross-sectional area is 22.99 cm².
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