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ISLB 450

Light Beam58 kg/m

Indian Standard Light Beam — IS 808:2021 | Depth 450mm × Width 170mm

Cross-Section (mm)
450170tw=8.6tf=13.4
Weight Calculator
58 kg/m × 6m × 1 =
348.0kg
0.348tonnes
Section Properties
Depth (D)450 mm
Width (B)170 mm
Web Thickness (tw)8.6 mm
Flange Thickness (tf)13.4 mm
Weight per Metre58 kg/m
Cross-sectional Area73.86 cm²
Moment of Inertia (Ixx)30390.8 cm⁴
Moment of Inertia (Iyy)830.6 cm⁴
Section Modulus (Zxx)1350.7 cm³
Section Modulus (Zyy)97.7 cm³
Radius of Gyration (rxx)20.27 cm
Radius of Gyration (ryy)3.35 cm
Related Sections
ISLB 400
400mm × 165mm · 50.4 kg/m
Ixx 21934.6 cm⁴ · Zxx 1096.7 cm³
ISLB 500
500mm × 180mm · 67.8 kg/m
Ixx 43239.5 cm⁴ · Zxx 1729.6 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 ISLB 450 per metre?

ISLB 450 weighs 58 kg per metre as per IS 808. For a standard 6m length, the total weight would be 348.0 kg.

Q.What are the dimensions of ISLB 450?

ISLB 450 has a depth of 450mm, flange width of 170mm, web thickness of 8.6mm, and flange thickness of 13.4mm.

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

The moment of inertia of ISLB 450 is Ixx = 30390.8 cm⁴ (major axis) and Iyy = 830.6 cm⁴ (minor axis).

Q.When should I use ISLB 450?

ISLB 450 (Light Beam) is typically used for secondary beams, light-duty beams, and window/door lintels. It provides a section modulus of Zxx = 1350.7 cm³, suitable for beams with moderate bending requirements.

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

A 6m length of ISLB 450 weighs 348.0 kg (0.348 tonnes). Weight formula: 58 kg/m × 6m = 348.0 kg.

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