ISA 150×150×12 Weight, Dimensions and IS 808 Properties
ISA 150×150×12 weighs 27.2 kg per metre as per IS 808:1989.
- One 6-metre length weighs 163.2 kg · one 12-metre length weighs 326.4 kg
- Leg 150 mm × thickness 12 mm · root radius 16.0 mm
- Cross-sectional area 34.58 cm² · Iuu = 665.0 cm⁴
ISA 150×150×12 is a large heavy structural equal-leg angle in IS 808:1989. At 27.2 kg/m it is used for heavily loaded primary chord members in long-span heavy trusses, back-to-back compound column sections in large industrial frames, and primary heavy bracing in large plant structures.
ISA 150×150×12 Weight Calculator
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ISA 150×150×12 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Leg length | A | mm | 150 |
| Thickness | t | mm | 12 |
| Root radius | r1 | mm | 16.0 |
| Cross-sectional area | A | cm² | 34.58 |
| Mass per metre | — | kg/m | 27.2 |
| Centroid distance (Cxx = Cyy) | Cxx | cm | 3.57 |
| Moment of inertia (u–u, max) | Iuu | cm⁴ | 665.0 |
| Moment of inertia (v–v, min) | Ivv | cm⁴ | 172.6 |
| Elastic section modulus (u–u) | Zuu | cm³ | 63.89 |
| Radius of gyration (u–u) | ruu | cm | 4.38 |
| Radius of gyration (v–v) | rvv | cm | 2.23 |
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 150×150×12
ISA 150×150×12 is used for heavily loaded primary truss chord members in 32–42 m span industrial structures, back-to-back compound column sections under very high axial load, primary heavy wind bracing members, and large high-load bolted connections. Available from JSPL and Tata Steel.
Worked Example
A structural engineer in Chennai specifies ISA 150×150×12 for 8 primary chord members, each 6 m long, for a 40 m span heavy process building truss. Total length = 8 × 6 = 48 m. Weight = 48 × 27.2 = 1,305.6 kg (1.306 tonnes). At ₹62,000 per tonne (Chennai, May 2026), material cost is approximately ₹80,947.
Related ISA Equal Angle Sections
Compare with adjacent sizes: ISA 150×150×10 (22.8 kg/m) · ISA 150×150×15 (33.5 kg/m). For all ISA equal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 150×150×12 per metre?
ISA 150×150×12 weighs 27.2 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 163.2 kg. For a 12-metre length, total weight is 326.4 kg.
ISA 150×150×12 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 150×150×12 ka weight 27.2 kg/m hota hai. 6 metre ki ek length ka total weight 163.2 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 150×150×12?
ISA 150×150×12 per IS 808:1989 has a leg length of 150 mm, thickness of 12 mm, and root radius of 16.0 mm. The cross-sectional area is 34.58 cm².
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