ISMC 350 Weight, Dimensions and IS 808 Properties
ISMC 350 weighs 43.2 kg per metre as per IS 808:1989.
- One 6-metre length weighs 259.2 kg · one 12-metre length weighs 518.4 kg
- Web height 350 mm · flange width 100 mm · web thickness 8.1 mm
- Cross-sectional area 55.20 cm² · Ixx = 13158.0 cm⁴
ISMC 350 is among the heaviest standard channel sections in IS 808:1989. At 43.2 kg/m with a 350 mm web and 100 mm flange, it is specified for heavy crane runway girders, large transfer beams, and special structural applications where a deep single channel is required.
ISMC 350 Weight Calculator
Enter the total length in metres to calculate weight.
ISMC 350 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Web height | h | mm | 350 |
| Flange width | b | mm | 100 |
| Web thickness | tw | mm | 8.1 |
| Flange thickness | tf | mm | 13.5 |
| Cross-sectional area | A | cm² | 55.20 |
| Mass per metre | — | kg/m | 43.2 |
| Moment of inertia (x–x) | Ixx | cm⁴ | 13158.0 |
| Moment of inertia (y–y) | Iyy | cm⁴ | 302.9 |
| Elastic section modulus (x–x) | Zxx | cm³ | 751.9 |
| Elastic section modulus (y–y) | Zyy | cm³ | 40.9 |
| Radius of gyration (x–x) | rxx | cm | 15.44 |
| Radius of gyration (y–y) | ryy | cm | 2.34 |
Dimensions and properties as per IS 808:1989 (reaffirmed 2021). Mass tolerance: ±2.5% per piece per IS 808.
Common Applications of ISMC 350
ISMC 350 is used for heavy EOT crane runway girders (20–30 tonne capacity), large transfer beams over major openings, and primary structural channels in heavy industrial plants. The 100 mm flange width provides a wide bearing surface for crane rail fixing. SAIL Bhilai produces ISMC 350 in IS 2062 E250 and E300 grade; confirm delivery lead time as this is a low-volume size.
Worked Example
A plant engineer in Pune needs 6 runway girders of ISMC 350, each 12 m long, for a 25-tonne EOT crane. Total length = 6 × 12 = 72 m. Weight = 72 × 43.2 = 3,110.4 kg (3.110 tonnes). At a market rate of ₹59,500 per tonne (Pune, May 2026), the material cost is approximately ₹1,85,070 before fabrication and rail fixing.
Related ISMC Sections
Compare with adjacent sizes: ISMC 300 (36.3 kg/m) · ISMC 400 (49.4 kg/m). For all ISMC sizes see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISMC 350 per metre?
ISMC 350 weighs 43.2 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 259.2 kg. For a 12-metre length, total weight is 518.4 kg.
ISMC 350 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISMC 350 ka weight 43.2 kg/m hota hai. 6 metre ki ek length ka total weight 259.2 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISMC 350?
ISMC 350 per IS 808:1989 has a web height of 350 mm, flange width of 100 mm, web thickness of 8.1 mm, and flange thickness of 13.5 mm. The cross-sectional area is 55.20 cm².
Need weight for a different section type? Our free Metal Weight Calculator covers all IS 808 sections, pipes, bars, and hollow sections.
Try the Free Metal Weight Calculator →