ISMB 175 Weight, Dimensions and IS 808 Properties
ISMB 175 weighs 19.6 kg per metre as per IS 808:1989.
- One 6-metre length weighs 117.6 kg · one 12-metre length weighs 235.2 kg
- Overall depth 175 mm · flange width 90 mm · web thickness 5.1 mm
- Cross-sectional area 2,490 mm² · Ixx = 1,508.7 cm⁴
ISMB 175 sits between the light and medium beam ranges in IS 808:1989. Its wider 90 mm flange improves lateral stability compared to ISMB 150, making it suitable for longer spans in roof structures, mezzanine primary beams, and industrial platforms.
ISMB 175 Weight Calculator
Enter the total length in metres to calculate weight.
ISMB 175 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Overall depth | D | mm | 175 |
| Flange width | B | mm | 90 |
| Web thickness | tw | mm | 5.1 |
| Flange thickness | tf | mm | 8.6 |
| Cross-sectional area | A | mm² | 2,490 |
| Mass per metre | — | kg/m | 19.6 |
| Moment of inertia (x–x) | Ixx | cm⁴ | 1,508.7 |
| Moment of inertia (y–y) | Iyy | cm⁴ | 95.8 |
| Elastic section modulus (x–x) | Zxx | cm³ | 172.4 |
| Elastic section modulus (y–y) | Zyy | cm³ | 21.3 |
| Radius of gyration (x–x) | rxx | cm | 7.78 |
| Radius of gyration (y–y) | ryy | cm | 1.96 |
Dimensions and properties as per IS 808:1989 (reaffirmed 2021). Mass tolerance: ±2.5% per piece per IS 808.
Common Applications of ISMB 175
ISMB 175 is used for primary beams in light mezzanine floors, roof rafter supports, and industrial platform framing. The wider 90 mm flange provides better resistance to lateral-torsional buckling than narrower light sections. SAIL and Tata Steel supply ISMB 175 in IS 2062 E250 and E300 grades.
Worked Example
A workshop in Nagpur needs 12 primary beams of ISMB 175 each 4.5 m long for a 6-tonne overhead crane runway. Total length = 12 × 4.5 = 54 m. Weight = 54 × 19.6 = 1,058.4 kg (1.058 tonnes). At ₹58,000 per tonne (May 2026), estimated material cost is approximately ₹61,390.
Related ISMB Sections
Compare with adjacent sizes: ISMB 150 (14.9 kg/m) · ISMB 200 (25.4 kg/m). For all ISMB sizes see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISMB 175 per metre?
ISMB 175 weighs 19.6 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 117.6 kg. For a 12-metre length, total weight is 235.2 kg.
ISMB 175 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISMB 175 ka weight 19.6 kg/m hota hai. 6 metre ki ek length ka total weight 117.6 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISMB 175?
ISMB 175 per IS 808:1989 has an overall depth of 175 mm, flange width of 90 mm, web thickness of 5.1 mm, and flange thickness of 8.6 mm. The cross-sectional area is 2,490 mm².
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