ISA 200×100×12 Weight, Dimensions and IS 808 Properties
ISA 200×100×12 weighs 27.1 kg per metre as per IS 808:1989.
- One 6-metre length weighs 162.6 kg · one 12-metre length weighs 325.2 kg
- Long leg 200 mm · short leg 100 mm · thickness 12 mm · area 34.57 cm²
- Maximum principal moment of inertia Iuu = 1649.0 cm⁴
ISA 200×100×12 is a standard unequal-leg angle in IS 808:1989. At 27.1 kg/m with a 200 mm long leg and 100 mm short leg, it is used for very heavily loaded structural bracing, crane-gantry runway beam column brackets, primary truss chord connections, and column-base gusset plates in large-span heavy industrial buildings.
ISA 200×100×12 Weight Calculator
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ISA 200×100×12 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Long leg | A | mm | 200 |
| Short leg | B | mm | 100 |
| Thickness | t | mm | 12 |
| Cross-sectional area | A | cm² | 34.57 |
| Mass per metre | — | kg/m | 27.1 |
| Centroid from back of long leg | Cxx | cm | 4.47 |
| Centroid from back of short leg | Cyy | cm | 1.75 |
| Moment of inertia (x–x) | Ixx | cm⁴ | 1553.0 |
| Moment of inertia (y–y) | Iyy | cm⁴ | 211.0 |
| Moment of inertia (u–u, max principal) | Iuu | cm⁴ | 1649.0 |
| Moment of inertia (v–v, min principal) | Ivv | cm⁴ | 115.0 |
| Elastic section modulus (x–x) | Zxx | cm³ | 114.9 |
| Elastic section modulus (y–y) | Zyy | cm³ | 27.5 |
| Radius of gyration (u–u) | ruu | cm | 6.91 |
| Radius of gyration (v–v) | rvv | cm | 1.82 |
| Tangent of principal axis angle | tan α | — | 0.197 |
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 200×100×12
ISA 200×100×12 is used for very heavily loaded structural bracing, crane-gantry runway beam column brackets, primary truss chord connections, and column-base gusset plates in large-span heavy industrial buildings. 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 Mumbai needs 3 primary chord bracing angles on a 60 m span heavy industrial roof truss using ISA 200×100×12, each 5000 mm long. Total length = 3 × 5.0 = 15.0 m. Weight = 15.0 × 27.1 = 406.5 kg. At ₹63,000 per tonne (Mumbai, May 2026), material cost is approximately ₹25,609 before cutting charges.
Related ISA Unequal Angle Sections
Compare with adjacent sizes: ISA 200×100×10 (22.8 kg/m) · ISA 200×150×12 (31.9 kg/m). For all ISA unequal angles see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISA 200×100×12 per metre?
ISA 200×100×12 weighs 27.1 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 162.6 kg. For a 12-metre length, total weight is 325.2 kg.
ISA 200×100×12 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISA 200×100×12 ka weight 27.1 kg/m hota hai. 6 metre ki ek length ka total weight 162.6 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISA 200×100×12?
ISA 200×100×12 per IS 808:1989 has a long leg of 200 mm, short leg of 100 mm, thickness of 12 mm, and cross-sectional area of 34.57 cm².
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