ISA 150×115×10 Weight, Dimensions and IS 808 Properties
ISA 150×115×10 weighs 20.0 kg per metre as per IS 808:1989.
- One 6-metre length weighs 120.0 kg · one 12-metre length weighs 240.0 kg
- Long leg 150 mm · short leg 115 mm · thickness 10 mm · area 25.5 cm²
- Maximum principal moment of inertia Iuu = 706.3 cm⁴
ISA 150×115×10 is a standard unequal-leg angle in IS 808:1989. At 20.0 kg/m with a 150 mm long leg and 115 mm short leg, it is used for structural applications where a near-square leg ratio is beneficial — such as diagonal bracing in square bays, column splice angles requiring symmetric bolt groups on both legs, and heavy connection cleats where both legs carry load.
ISA 150×115×10 Weight Calculator
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ISA 150×115×10 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Long leg | A | mm | 150 |
| Short leg | B | mm | 115 |
| Thickness | t | mm | 10 |
| Cross-sectional area | A | cm² | 25.5 |
| Mass per metre | — | kg/m | 20.0 |
| Centroid from back of long leg | Cxx | cm | 3.22 |
| Centroid from back of short leg | Cyy | cm | 2.32 |
| Moment of inertia (x–x) | Ixx | cm⁴ | 575.3 |
| Moment of inertia (y–y) | Iyy | cm⁴ | 247.1 |
| Moment of inertia (u–u, max principal) | Iuu | cm⁴ | 706.3 |
| Moment of inertia (v–v, min principal) | Ivv | cm⁴ | 116.1 |
| Elastic section modulus (x–x) | Zxx | cm³ | 54.9 |
| Elastic section modulus (y–y) | Zyy | cm³ | 30.0 |
| Radius of gyration (u–u) | ruu | cm | 5.27 |
| Radius of gyration (v–v) | rvv | cm | 2.13 |
| Tangent of principal axis angle | tan α | — | 0.586 |
Dimensions and properties as per IS 808:1989 (reaffirmed 2021). x–x axis is parallel to the long leg; y–y axis is parallel to the short leg; u–u is the maximum principal axis at angle α to x–x. Mass tolerance: ±3% per piece per IS 808.
Common Applications of ISA 150×115×10
ISA 150×115×10 is used for structural applications where a near-square leg ratio is beneficial — such as diagonal bracing in square bays, column splice angles requiring symmetric bolt groups on both legs, and heavy connection cleats where both legs carry load. General steel merchants and angle stockists carry this size in IS 2062 E250 grade in 6 m and 12 m lengths. JSPL, SAIL, and RINL (Vizag Steel) all roll this designation to IS 808:1989 as standard stock.
Worked Example
A fabricator in Pune needs 5 diagonal bracing angles in a 10 m × 10 m square bay industrial building using ISA 150×115×10, each 2800 mm long. Total length = 5 × 2.8 = 14.0 m. Weight = 14.0 × 20.0 = 280.0 kg. At ₹63,000 per tonne (Pune, May 2026), material cost is approximately ₹17,640 before cutting charges.
Related ISA Unequal Angle Sections
Compare with adjacent sizes: ISA 150×100×12 (22.4 kg/m) · ISA 200×100×10 (22.8 kg/m). For all ISA unequal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 150×115×10 per metre?
ISA 150×115×10 weighs 20.0 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 120.0 kg. For a 12-metre length, total weight is 240.0 kg.
ISA 150×115×10 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 150×115×10 ka weight 20.0 kg/m hota hai. 6 metre ki ek length ka total weight 120.0 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 150×115×10?
ISA 150×115×10 per IS 808:1989 has a long leg of 150 mm, short leg of 115 mm, thickness of 10 mm, and cross-sectional area of 25.5 cm².
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