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ISMB 450

Medium Beam72.4 kg/m

Indian Standard Medium Beam — IS 808:2021 | Depth 450mm × Width 150mm

Cross-Section (mm)
450150tw=9.4tf=17.4
Weight Calculator
72.4 kg/m × 6m × 1 =
434.4kg
0.434tonnes
Section Properties
Depth (D)450 mm
Width (B)150 mm
Web Thickness (tw)9.4 mm
Flange Thickness (tf)17.4 mm
Weight per Metre72.4 kg/m
Cross-sectional Area92.27 cm²
Moment of Inertia (Ixx)30390.8 cm⁴
Moment of Inertia (Iyy)683.6 cm⁴
Section Modulus (Zxx)1350.7 cm³
Section Modulus (Zyy)91.2 cm³
Radius of Gyration (rxx)18.15 cm
Radius of Gyration (ryy)2.72 cm
Related Sections
ISMB 400
400mm × 140mm · 61.6 kg/m
Ixx 20458.4 cm⁴ · Zxx 1022.9 cm³
ISMB 500
500mm × 180mm · 86.9 kg/m
Ixx 45218.3 cm⁴ · Zxx 1808.7 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 450 per metre?

ISMB 450 weighs 72.4 kg per metre as per IS 808. For a standard 6m length, the total weight would be 434.4 kg.

Q.What are the dimensions of ISMB 450?

ISMB 450 has a depth of 450mm, flange width of 150mm, web thickness of 9.4mm, and flange thickness of 17.4mm.

Q.What is the moment of inertia of ISMB 450?

The moment of inertia of ISMB 450 is Ixx = 30390.8 cm⁴ (major axis) and Iyy = 683.6 cm⁴ (minor axis).

Q.When should I use ISMB 450?

ISMB 450 (Medium Beam) is typically used for primary beams, lintels, and columns in building frames. It provides a section modulus of Zxx = 1350.7 cm³, suitable for beams with moderate bending requirements.

Q.How much does a 6 metre ISMB 450 weigh?

A 6m length of ISMB 450 weighs 434.4 kg (0.434 tonnes). Weight formula: 72.4 kg/m × 6m = 434.4 kg.

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