ISA 50×50×5 Weight, Dimensions and IS 808 Properties
ISA 50×50×5 weighs 3.8 kg per metre as per IS 808:1989.
- One 6-metre length weighs 22.8 kg · one 12-metre length weighs 45.6 kg
- Leg 50 mm × thickness 5 mm · root radius 7.0 mm
- Cross-sectional area 4.8 cm² · Iuu = 10.2 cm⁴
ISA 50×50×5 is a widely used structural equal-leg angle in IS 808:1989. At 3.8 kg/m with a 50 mm leg it is a standard section for light truss members, back-to-back built-up struts, and bracing in light to medium industrial buildings across India.
ISA 50×50×5 Weight Calculator
Enter the total length in metres to calculate weight.
ISA 50×50×5 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 50 |
| Thickness | t | mm | 5 |
| Root radius | r1 | mm | 7.0 |
| Cross-sectional area | A | cm² | 4.8 |
| Mass per metre | — | kg/m | 3.8 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 1.24 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 10.2 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 2.66 |
| Elastic section modulus (u–u) | Zuu | cm³ | 2.88 |
| Radius of gyration (u–u) | ruu | cm | 1.46 |
| Radius of gyration (v–v) | rvv | cm | 0.74 |
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 50×50×5
ISA 50×50×5 is used for light roof truss web members, back-to-back compound struts, secondary column bracing, purlin and girt support cleats, and light platform members. Tata Steel, JSPL, and RINL/Vizag Steel stock ISA 50×50×5 as standard in IS 2062 E250 grade.
Worked Example
A fabricator in Hyderabad needs 30 truss web members of ISA 50×50×5, each 1.2 m long, for a 10 m span roof. Total length = 30 × 1.2 = 36 m. Weight = 36 × 3.8 = 136.8 kg. At ₹62,000 per tonne (Hyderabad, May 2026), material cost is approximately ₹8,482.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 45×45×5 (3.4 kg/m) · ISA 50×50×6 (4.5 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 50×50×5 per metre?
ISA 50×50×5 weighs 3.8 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 22.8 kg. For a 12-metre length, total weight is 45.6 kg.
ISA 50×50×5 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 50×50×5 ka weight 3.8 kg/m hota hai. 6 metre ki ek length ka total weight 22.8 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 50×50×5?
ISA 50×50×5 per IS 808:1989 has a leg length of 50 mm, thickness of 5 mm, and root radius of 7.0 mm. The cross-sectional area is 4.80 cm².
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