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ISMB 400

Medium Beam61.6 kg/m

Indian Standard Medium Beam — IS 808:2021 | Depth 400mm × Width 140mm

Cross-Section (mm)
400140tw=8.9tf=16
Weight Calculator
61.6 kg/m × 6m × 1 =
369.6kg
0.370tonnes
Section Properties
Depth (D)400 mm
Width (B)140 mm
Web Thickness (tw)8.9 mm
Flange Thickness (tf)16 mm
Weight per Metre61.6 kg/m
Cross-sectional Area78.46 cm²
Moment of Inertia (Ixx)20458.4 cm⁴
Moment of Inertia (Iyy)503.8 cm⁴
Section Modulus (Zxx)1022.9 cm³
Section Modulus (Zyy)71.9 cm³
Radius of Gyration (rxx)16.15 cm
Radius of Gyration (ryy)2.54 cm
Related Sections
ISMB 350
350mm × 140mm · 52.4 kg/m
Ixx 13630.3 cm⁴ · Zxx 778.9 cm³
ISMB 450
450mm × 150mm · 72.4 kg/m
Ixx 30390.8 cm⁴ · Zxx 1350.7 cm³
Applicable IS Codes
IS 808:2021 — Hot Rolled Structural Steel SectionsIS 2062:2011 — Hot Rolled Structural SteelIS 800:2007 — General Construction in Steel
Frequently Asked Questions
Q.What is the weight of ISMB 400 per metre?

ISMB 400 weighs 61.6 kg per metre as per IS 808. For a standard 6m length, the total weight would be 369.6 kg.

Q.What are the dimensions of ISMB 400?

ISMB 400 has a depth of 400mm, flange width of 140mm, web thickness of 8.9mm, and flange thickness of 16mm.

Q.What is the moment of inertia of ISMB 400?

The moment of inertia of ISMB 400 is Ixx = 20458.4 cm⁴ (major axis) and Iyy = 503.8 cm⁴ (minor axis).

Q.When should I use ISMB 400?

ISMB 400 (Medium Beam) is typically used for primary beams, lintels, and columns in building frames. It provides a section modulus of Zxx = 1022.9 cm³, suitable for beams with moderate bending requirements.

Q.How much does a 6 metre ISMB 400 weigh?

A 6m length of ISMB 400 weighs 369.6 kg (0.370 tonnes). Weight formula: 61.6 kg/m × 6m = 369.6 kg.

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