ISA 75×75×6 Weight, Dimensions and IS 808 Properties
ISA 75×75×6 weighs 6.9 kg per metre as per IS 808:1989.
- One 6-metre length weighs 41.4 kg · one 12-metre length weighs 82.8 kg
- Leg 75 mm × thickness 6 mm · root radius 9.0 mm
- Cross-sectional area 8.74 cm² · Iuu = 42.4 cm⁴
ISA 75×75×6 is one of the most widely used structural equal-leg angles in India. At 6.9 kg/m with a 75 mm leg it is a standard choice for truss chord members, back-to-back compound struts, and bracing in light to medium industrial construction.
ISA 75×75×6 Weight Calculator
Enter the total length in metres to calculate weight.
ISA 75×75×6 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 75 |
| Thickness | t | mm | 6 |
| Root radius | r1 | mm | 9.0 |
| Cross-sectional area | A | cm² | 8.74 |
| Mass per metre | — | kg/m | 6.9 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 1.77 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 42.4 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 11.03 |
| Elastic section modulus (u–u) | Zuu | cm³ | 7.99 |
| Radius of gyration (u–u) | ruu | cm | 2.2 |
| Radius of gyration (v–v) | rvv | cm | 1.12 |
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 75×75×6
ISA 75×75×6 is a highly popular size used for top and bottom chord members in roof trusses up to 12 m span, diagonal bracing in multi-bay industrial sheds, purlin and girt cleats, back-to-back compound strut members, and lacing bars in battened columns. Widely stocked by JSPL, Tata Steel, and steel merchants across all major Indian cities in IS 2062 E250 grade.
Worked Example
A fabricator in Surat needs 20 bottom chord members of ISA 75×75×6, each 6 m long, for a set of 10 m span roof trusses. Total length = 20 × 6 = 120 m. Weight = 120 × 6.9 = 828 kg (0.828 tonnes). At ₹62,000 per tonne (Surat, May 2026), material cost is approximately ₹51,336.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 70×70×6 (6.4 kg/m) · ISA 75×75×8 (8.9 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 75×75×6 per metre?
ISA 75×75×6 weighs 6.9 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 41.4 kg. For a 12-metre length, total weight is 82.8 kg.
ISA 75×75×6 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 75×75×6 ka weight 6.9 kg/m hota hai. 6 metre ki ek length ka total weight 41.4 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 75×75×6?
ISA 75×75×6 per IS 808:1989 has a leg length of 75 mm, thickness of 6 mm, and root radius of 9.0 mm. The cross-sectional area is 8.74 cm².
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