ISA 30×30×3 Weight, Dimensions and IS 808 Properties
ISA 30×30×3 weighs 1.4 kg per metre as per IS 808:1989.
- One 6-metre length weighs 8.4 kg · one 12-metre length weighs 16.8 kg
- Leg 30 mm × thickness 3 mm · root radius 5.0 mm
- Cross-sectional area 1.74 cm² · Iuu = 1.4 cm⁴
ISA 30×30×3 is a light equal-leg angle in IS 808:1989. At 1.4 kg/m with a 30 mm leg, it is commonly used for light secondary bracing, shelf support angles, and minor structural cleats in fabricated assemblies.
ISA 30×30×3 Weight Calculator
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ISA 30×30×3 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 30 |
| Thickness | t | mm | 3 |
| Root radius | r1 | mm | 5.0 |
| Cross-sectional area | A | cm² | 1.74 |
| Mass per metre | — | kg/m | 1.4 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 0.75 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 1.4 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 0.36 |
| Elastic section modulus (u–u) | Zuu | cm³ | 0.67 |
| Radius of gyration (u–u) | ruu | cm | 0.9 |
| Radius of gyration (v–v) | rvv | cm | 0.46 |
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 30×30×3
ISA 30×30×3 is used for light shelf angles, thin gusset cleats, door frame stiffeners, cable tray support brackets, and minor bracing in equipment frames and enclosures. It is widely stocked at general steel merchants across India in IS 2062 E250 grade in 6 m lengths.
Worked Example
A contractor in Vadodara needs 50 shelf support angles of ISA 30×30×3, each 300 mm long, for a storage system. Total length = 50 × 0.3 = 15 m. Weight = 15 × 1.4 = 21 kg. At ₹65,000 per tonne (Vadodara, May 2026), material cost is approximately ₹1,365.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 25×25×5 (1.8 kg/m) · ISA 30×30×5 (2.2 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 30×30×3 per metre?
ISA 30×30×3 weighs 1.4 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 8.4 kg. For a 12-metre length, total weight is 16.8 kg.
ISA 30×30×3 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 30×30×3 ka weight 1.4 kg/m hota hai. 6 metre ki ek length ka total weight 8.4 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 30×30×3?
ISA 30×30×3 per IS 808:1989 has a leg length of 30 mm, thickness of 3 mm, and root radius of 5.0 mm. The cross-sectional area is 1.74 cm².
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