ISA 80×80×8 Weight, Dimensions and IS 808 Properties
ISA 80×80×8 weighs 9.6 kg per metre as per IS 808:1989.
- One 6-metre length weighs 57.6 kg · one 12-metre length weighs 115.2 kg
- Leg 80 mm × thickness 8 mm · root radius 9.0 mm
- Cross-sectional area 12.18 cm² · Iuu = 66.0 cm⁴
ISA 80×80×8 is a medium structural equal-leg angle in IS 808:1989. At 9.6 kg/m with an 80 mm leg it is used for loaded truss chord members, back-to-back compound struts, and primary bracing members in medium-span industrial buildings.
ISA 80×80×8 Weight Calculator
Enter the total length in metres to calculate weight.
ISA 80×80×8 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 80 |
| Thickness | t | mm | 8 |
| Root radius | r1 | mm | 9.0 |
| Cross-sectional area | A | cm² | 12.18 |
| Mass per metre | — | kg/m | 9.6 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 1.97 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 66.0 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 17.13 |
| Elastic section modulus (u–u) | Zuu | cm³ | 11.76 |
| Radius of gyration (u–u) | ruu | cm | 2.33 |
| Radius of gyration (v–v) | rvv | cm | 1.19 |
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 80×80×8
ISA 80×80×8 is used for loaded truss chord members in 14–18 m span structures, back-to-back built-up column legs under axial load, wind bracing in tall industrial buildings, bolted gusset plate connections, and primary structural cleats. Stocked by JSPL, Tata Steel, and RINL in IS 2062 E250 grade.
Worked Example
A structural fabricator in Surat needs 10 bottom chord members of ISA 80×80×8, each 6 m long, for a heavily loaded 16 m span truss. Total length = 10 × 6 = 60 m. Weight = 60 × 9.6 = 576 kg. At ₹62,000 per tonne (Surat, May 2026), material cost is approximately ₹35,712.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 75×75×10 (10.9 kg/m) · ISA 90×90×8 (10.8 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 80×80×8 per metre?
ISA 80×80×8 weighs 9.6 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 57.6 kg. For a 12-metre length, total weight is 115.2 kg.
ISA 80×80×8 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 80×80×8 ka weight 9.6 kg/m hota hai. 6 metre ki ek length ka total weight 57.6 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 80×80×8?
ISA 80×80×8 per IS 808:1989 has a leg length of 80 mm, thickness of 8 mm, and root radius of 9.0 mm. The cross-sectional area is 12.18 cm².
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