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ISLB 150

Light Beam12.1 kg/m

Indian Standard Light Beam — IS 808:2021 | Depth 150mm × Width 80mm

Cross-Section (mm)
15080tw=4.8tf=6.8
Weight Calculator
12.1 kg/m × 6m × 1 =
72.6kg
0.073tonnes
Section Properties
Depth (D)150 mm
Width (B)80 mm
Web Thickness (tw)4.8 mm
Flange Thickness (tf)6.8 mm
Weight per Metre12.1 kg/m
Cross-sectional Area15.42 cm²
Moment of Inertia (Ixx)651.7 cm⁴
Moment of Inertia (Iyy)42 cm⁴
Section Modulus (Zxx)86.9 cm³
Section Modulus (Zyy)10.5 cm³
Radius of Gyration (rxx)6.5 cm
Radius of Gyration (ryy)1.65 cm
Related Sections
ISLB 125
125mm × 75mm · 9.9 kg/m
Ixx 366.1 cm⁴ · Zxx 58.6 cm³
ISLB 175
175mm × 90mm · 15.1 kg/m
Ixx 1155 cm⁴ · Zxx 132 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 150 per metre?

ISLB 150 weighs 12.1 kg per metre as per IS 808. For a standard 6m length, the total weight would be 72.6 kg.

Q.What are the dimensions of ISLB 150?

ISLB 150 has a depth of 150mm, flange width of 80mm, web thickness of 4.8mm, and flange thickness of 6.8mm.

Q.What is the moment of inertia of ISLB 150?

The moment of inertia of ISLB 150 is Ixx = 651.7 cm⁴ (major axis) and Iyy = 42 cm⁴ (minor axis).

Q.When should I use ISLB 150?

ISLB 150 (Light Beam) is typically used for secondary beams, light-duty beams, and window/door lintels. It provides a section modulus of Zxx = 86.9 cm³, suitable for beams with moderate bending requirements.

Q.How much does a 6 metre ISLB 150 weigh?

A 6m length of ISLB 150 weighs 72.6 kg (0.073 tonnes). Weight formula: 12.1 kg/m × 6m = 72.6 kg.

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