ISA 80×60×8 Weight, Dimensions and IS 808 Properties
ISA 80×60×8 weighs 8.5 kg per metre as per IS 808:1989.
- One 6-metre length weighs 51.0 kg · one 12-metre length weighs 102.0 kg
- Long leg 80 mm · short leg 60 mm · thickness 8 mm · area 10.78 cm²
- Maximum principal moment of inertia Iuu = 81.61 cm⁴
ISA 80×60×8 is a standard unequal-leg angle in IS 808:1989. At 8.5 kg/m with a 80 mm long leg and 60 mm short leg, it is used for loaded beam-to-column connections, staircase stringer brackets, truss bottom-chord connection gussets, and diagonal bracing in medium industrial structures.
ISA 80×60×8 Weight Calculator
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ISA 80×60×8 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Long leg | A | mm | 80 |
| Short leg | B | mm | 60 |
| Thickness | t | mm | 8 |
| Cross-sectional area | A | cm² | 10.78 |
| Mass per metre | — | kg/m | 8.5 |
| Centroid from back of long leg | Cxx | cm | 2.0 |
| Centroid from back of short leg | Cyy | cm | 1.3 |
| Moment of inertia (x–x) | Ixx | cm⁴ | 72.1 |
| Moment of inertia (y–y) | Iyy | cm⁴ | 23.76 |
| Moment of inertia (u–u, max principal) | Iuu | cm⁴ | 81.61 |
| Moment of inertia (v–v, min principal) | Ivv | cm⁴ | 14.25 |
| Elastic section modulus (x–x) | Zxx | cm³ | 13.16 |
| Elastic section modulus (y–y) | Zyy | cm³ | 5.66 |
| Radius of gyration (u–u) | ruu | cm | 2.75 |
| Radius of gyration (v–v) | rvv | cm | 1.15 |
| Tangent of principal axis angle | tan α | — | 0.443 |
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 80×60×8
ISA 80×60×8 is used for loaded beam-to-column connections, staircase stringer brackets, truss bottom-chord connection gussets, and diagonal bracing in medium industrial structures. 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 Chennai needs 20 staircase stringer brackets for a two-storey industrial building using ISA 80×60×8, each 350 mm long. Total length = 20 × 0.35 = 7.0 m. Weight = 7.0 × 8.5 = 59.5 kg. At ₹63,000 per tonne (Chennai, May 2026), material cost is approximately ₹3,748 before cutting charges.
Related ISA Unequal Angle Sections
Compare with adjacent sizes: ISA 80×60×6 (6.5 kg/m) · ISA 100×65×7 (8.7 kg/m). For all ISA unequal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 80×60×8 per metre?
ISA 80×60×8 weighs 8.5 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 51.0 kg. For a 12-metre length, total weight is 102.0 kg.
ISA 80×60×8 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 80×60×8 ka weight 8.5 kg/m hota hai. 6 metre ki ek length ka total weight 51.0 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 80×60×8?
ISA 80×60×8 per IS 808:1989 has a long leg of 80 mm, short leg of 60 mm, thickness of 8 mm, and cross-sectional area of 10.78 cm².
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