ISA 100×65×7 Weight, Dimensions and IS 808 Properties
ISA 100×65×7 weighs 8.7 kg per metre as per IS 808:1989.
- One 6-metre length weighs 52.2 kg · one 12-metre length weighs 104.4 kg
- Long leg 100 mm · short leg 65 mm · thickness 7 mm · area 11.07 cm²
- Maximum principal moment of inertia Iuu = 133.86 cm⁴
ISA 100×65×7 is a standard unequal-leg angle in IS 808:1989. At 8.7 kg/m with a 100 mm long leg and 65 mm short leg, it is used for medium structural bracing in industrial buildings, beam seating connections, truss panel-point gussets, and purlin cleats on heavy industrial sheds.
ISA 100×65×7 Weight Calculator
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ISA 100×65×7 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Long leg | A | mm | 100 |
| Short leg | B | mm | 65 |
| Thickness | t | mm | 7 |
| Cross-sectional area | A | cm² | 11.07 |
| Mass per metre | — | kg/m | 8.7 |
| Centroid from back of long leg | Cxx | cm | 2.29 |
| Centroid from back of short leg | Cyy | cm | 1.24 |
| Moment of inertia (x–x) | Ixx | cm⁴ | 122.1 |
| Moment of inertia (y–y) | Iyy | cm⁴ | 30.17 |
| Moment of inertia (u–u, max principal) | Iuu | cm⁴ | 133.86 |
| Moment of inertia (v–v, min principal) | Ivv | cm⁴ | 18.41 |
| Elastic section modulus (x–x) | Zxx | cm³ | 17.79 |
| Elastic section modulus (y–y) | Zyy | cm³ | 6.47 |
| Radius of gyration (u–u) | ruu | cm | 3.48 |
| Radius of gyration (v–v) | rvv | cm | 1.29 |
| Tangent of principal axis angle | tan α | — | 0.353 |
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 100×65×7
ISA 100×65×7 is used for medium structural bracing in industrial buildings, beam seating connections, truss panel-point gussets, and purlin cleats on heavy industrial sheds. 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 Bengaluru needs 16 truss panel-point connection angles on a warehouse roof using ISA 100×65×7, each 400 mm long. Total length = 16 × 0.4 = 6.4 m. Weight = 6.4 × 8.7 = 55.7 kg. At ₹63,000 per tonne (Bengaluru, May 2026), material cost is approximately ₹3,509 before cutting charges.
Related ISA Unequal Angle Sections
Compare with adjacent sizes: ISA 80×60×8 (8.5 kg/m) · ISA 100×75×8 (10.5 kg/m). For all ISA unequal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 100×65×7 per metre?
ISA 100×65×7 weighs 8.7 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 52.2 kg. For a 12-metre length, total weight is 104.4 kg.
ISA 100×65×7 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 100×65×7 ka weight 8.7 kg/m hota hai. 6 metre ki ek length ka total weight 52.2 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 100×65×7?
ISA 100×65×7 per IS 808:1989 has a long leg of 100 mm, short leg of 65 mm, thickness of 7 mm, and cross-sectional area of 11.07 cm².
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