ISA 175×175×15 Weight, Dimensions and IS 808 Properties
ISA 175×175×15 weighs 39.4 kg per metre as per IS 808:1989.
- One 6-metre length weighs 236.4 kg · one 12-metre length weighs 472.8 kg
- Leg 175 mm × thickness 15 mm · root radius 16.0 mm
- Cross-sectional area 50.19 cm² · Iuu = 1284.0 cm⁴
ISA 175×175×15 is the heavier 175 mm equal-leg angle in IS 808:1989. At 39.4 kg/m it is among the largest standard ISA sections and is used for the heaviest primary structural members in large crane gantries, heavy industrial trusses, and compound column sections in large infrastructure structures.
ISA 175×175×15 Weight Calculator
Enter the total length in metres to calculate weight.
ISA 175×175×15 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 175 |
| Thickness | t | mm | 15 |
| Root radius | r1 | mm | 16.0 |
| Cross-sectional area | A | cm² | 50.19 |
| Mass per metre | — | kg/m | 39.4 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 4.22 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 1284.0 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 332.9 |
| Elastic section modulus (u–u) | Zuu | cm³ | 106.1 |
| Radius of gyration (u–u) | ruu | cm | 5.06 |
| Radius of gyration (v–v) | rvv | cm | 2.58 |
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 175×175×15
ISA 175×175×15 is used for primary chord members in 40–50 m span very heavy industrial trusses, compound column sections in large infrastructure and industrial frames, heavy crane gantry chord members, primary wind bracing under extreme lateral loads, and major bolted connection nodes. Available from JSPL and Tata Steel.
Worked Example
A structural engineer in Delhi specifies ISA 175×175×15 for 6 primary chord members, each 6 m long, for a 48 m span heavy steel plant truss. Total length = 6 × 6 = 36 m. Weight = 36 × 39.4 = 1,418.4 kg (1.418 tonnes). At ₹62,000 per tonne (Delhi, May 2026), material cost is approximately ₹87,941.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 175×175×12 (31.9 kg/m) · ISA 200×200×15 (45.3 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 175×175×15 per metre?
ISA 175×175×15 weighs 39.4 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 236.4 kg. For a 12-metre length, total weight is 472.8 kg.
ISA 175×175×15 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 175×175×15 ka weight 39.4 kg/m hota hai. 6 metre ki ek length ka total weight 236.4 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 175×175×15?
ISA 175×175×15 per IS 808:1989 has a leg length of 175 mm, thickness of 15 mm, and root radius of 16.0 mm. The cross-sectional area is 50.19 cm².
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