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ISLB 500

Light Beam67.8 kg/m

Indian Standard Light Beam — IS 808:2021 | Depth 500mm × Width 180mm

Cross-Section (mm)
500180tw=9.2tf=14.2
Weight Calculator
67.8 kg/m × 6m × 1 =
406.8kg
0.407tonnes
Section Properties
Depth (D)500 mm
Width (B)180 mm
Web Thickness (tw)9.2 mm
Flange Thickness (tf)14.2 mm
Weight per Metre67.8 kg/m
Cross-sectional Area86.34 cm²
Moment of Inertia (Ixx)43239.5 cm⁴
Moment of Inertia (Iyy)1051.1 cm⁴
Section Modulus (Zxx)1729.6 cm³
Section Modulus (Zyy)116.8 cm³
Radius of Gyration (rxx)22.38 cm
Radius of Gyration (ryy)3.49 cm
Related Sections
ISLB 450
450mm × 170mm · 58 kg/m
Ixx 30390.8 cm⁴ · Zxx 1350.7 cm³
ISLB 550
550mm × 190mm · 78.4 kg/m
Ixx 59348.6 cm⁴ · Zxx 2158.1 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 500 per metre?

ISLB 500 weighs 67.8 kg per metre as per IS 808. For a standard 6m length, the total weight would be 406.8 kg.

Q.What are the dimensions of ISLB 500?

ISLB 500 has a depth of 500mm, flange width of 180mm, web thickness of 9.2mm, and flange thickness of 14.2mm.

Q.What is the moment of inertia of ISLB 500?

The moment of inertia of ISLB 500 is Ixx = 43239.5 cm⁴ (major axis) and Iyy = 1051.1 cm⁴ (minor axis).

Q.When should I use ISLB 500?

ISLB 500 (Light Beam) is typically used for secondary beams, light-duty beams, and window/door lintels. It provides a section modulus of Zxx = 1729.6 cm³, suitable for beams with moderate bending requirements.

Q.How much does a 6 metre ISLB 500 weigh?

A 6m length of ISLB 500 weighs 406.8 kg (0.407 tonnes). Weight formula: 67.8 kg/m × 6m = 406.8 kg.

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