ISA 90×90×10 Weight, Dimensions and IS 808 Properties
ISA 90×90×10 weighs 13.3 kg per metre as per IS 808:1989.
- One 6-metre length weighs 79.8 kg · one 12-metre length weighs 159.6 kg
- Leg 90 mm × thickness 10 mm · root radius 10.0 mm
- Cross-sectional area 16.92 cm² · Iuu = 116.0 cm⁴
ISA 90×90×10 is the heavier 90 mm equal-leg angle in IS 808:1989. At 13.3 kg/m it provides 23% more cross-sectional area than ISA 90×90×8, used for heavily loaded primary truss chord members and back-to-back compound column sections under significant axial compression.
ISA 90×90×10 Weight Calculator
Enter the total length in metres to calculate weight.
ISA 90×90×10 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 90 |
| Thickness | t | mm | 10 |
| Root radius | r1 | mm | 10.0 |
| Cross-sectional area | A | cm² | 16.92 |
| Mass per metre | — | kg/m | 13.3 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 2.27 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 116.0 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 30.07 |
| Elastic section modulus (u–u) | Zuu | cm³ | 18.73 |
| Radius of gyration (u–u) | ruu | cm | 2.62 |
| Radius of gyration (v–v) | rvv | cm | 1.33 |
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 90×90×10
ISA 90×90×10 is used for heavily loaded primary truss chord members, back-to-back built-up compound column sections under high axial load, primary wind bracing members in tall industrial buildings, and bolted connection joints with high bearing demand. Available from JSPL, Tata Steel, and SAIL.
Worked Example
A structural engineer in Delhi specifies ISA 90×90×10 for 10 heavily loaded truss bottom chord members, each 6 m long, for a 20 m span structure. Total length = 10 × 6 = 60 m. Weight = 60 × 13.3 = 798 kg (0.798 tonnes). At ₹62,000 per tonne (Delhi, May 2026), material cost is approximately ₹49,476.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 90×90×8 (10.8 kg/m) · ISA 100×100×8 (12.1 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 90×90×10 per metre?
ISA 90×90×10 weighs 13.3 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 79.8 kg. For a 12-metre length, total weight is 159.6 kg.
ISA 90×90×10 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 90×90×10 ka weight 13.3 kg/m hota hai. 6 metre ki ek length ka total weight 79.8 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 90×90×10?
ISA 90×90×10 per IS 808:1989 has a leg length of 90 mm, thickness of 10 mm, and root radius of 10.0 mm. The cross-sectional area is 16.92 cm².
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