ISA 100×100×8 Weight, Dimensions and IS 808 Properties
ISA 100×100×8 weighs 12.1 kg per metre as per IS 808:1989.
- One 6-metre length weighs 72.6 kg · one 12-metre length weighs 145.2 kg
- Leg 100 mm × thickness 8 mm · root radius 11.0 mm
- Cross-sectional area 15.39 cm² · Iuu = 134.0 cm⁴
ISA 100×100×8 is a medium-heavy structural equal-leg angle in IS 808:1989. At 12.1 kg/m with a 100 mm leg it is used for primary truss chord members, back-to-back compound column sections, and heavy bracing in medium to large industrial structures across India.
ISA 100×100×8 Weight Calculator
Enter the total length in metres to calculate weight.
ISA 100×100×8 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 100 |
| Thickness | t | mm | 8 |
| Root radius | r1 | mm | 11.0 |
| Cross-sectional area | A | cm² | 15.39 |
| Mass per metre | — | kg/m | 12.1 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 2.37 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 134.0 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 34.81 |
| Elastic section modulus (u–u) | Zuu | cm³ | 18.97 |
| Radius of gyration (u–u) | ruu | cm | 2.95 |
| Radius of gyration (v–v) | rvv | cm | 1.5 |
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 100×100×8
ISA 100×100×8 is used for primary truss top and bottom chord members in 18–24 m span structures, back-to-back built-up column legs, heavy diagonal wind bracing members, bolted splice connections in primary frames, and gusset plate connections with high bearing demands. Stocked by JSPL, Tata Steel, and SAIL in IS 2062 E250 grade.
Worked Example
A structural engineer in Mumbai specifies ISA 100×100×8 for 10 bottom chord members, each 6 m long, for a 22 m span Pratt truss in an industrial warehouse. Total length = 10 × 6 = 60 m. Weight = 60 × 12.1 = 726 kg (0.726 tonnes). At ₹62,000 per tonne (Mumbai, May 2026), material cost is approximately ₹45,012.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 90×90×10 (13.3 kg/m) · ISA 100×100×10 (14.9 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 100×100×8 per metre?
ISA 100×100×8 weighs 12.1 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 72.6 kg. For a 12-metre length, total weight is 145.2 kg.
ISA 100×100×8 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 100×100×8 ka weight 12.1 kg/m hota hai. 6 metre ki ek length ka total weight 72.6 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 100×100×8?
ISA 100×100×8 per IS 808:1989 has a leg length of 100 mm, thickness of 8 mm, and root radius of 11.0 mm. The cross-sectional area is 15.39 cm².
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