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ISLB 350

Light Beam44.2 kg/m

Indian Standard Light Beam — IS 808:2021 | Depth 350mm × Width 165mm

Cross-Section (mm)
350165tw=7.4tf=11.4
Weight Calculator
44.2 kg/m × 6m × 1 =
265.2kg
0.265tonnes
Section Properties
Depth (D)350 mm
Width (B)165 mm
Web Thickness (tw)7.4 mm
Flange Thickness (tf)11.4 mm
Weight per Metre44.2 kg/m
Cross-sectional Area56.26 cm²
Moment of Inertia (Ixx)15099.7 cm⁴
Moment of Inertia (Iyy)631.9 cm⁴
Section Modulus (Zxx)862.8 cm³
Section Modulus (Zyy)76.6 cm³
Radius of Gyration (rxx)16.39 cm
Radius of Gyration (ryy)3.35 cm
Related Sections
ISLB 325
325mm × 165mm · 38.8 kg/m
Ixx 11702.4 cm⁴ · Zxx 720.1 cm³
ISLB 400
400mm × 165mm · 50.4 kg/m
Ixx 21934.6 cm⁴ · Zxx 1096.7 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 ISLB 350 per metre?

ISLB 350 weighs 44.2 kg per metre as per IS 808. For a standard 6m length, the total weight would be 265.2 kg.

Q.What are the dimensions of ISLB 350?

ISLB 350 has a depth of 350mm, flange width of 165mm, web thickness of 7.4mm, and flange thickness of 11.4mm.

Q.What is the moment of inertia of ISLB 350?

The moment of inertia of ISLB 350 is Ixx = 15099.7 cm⁴ (major axis) and Iyy = 631.9 cm⁴ (minor axis).

Q.When should I use ISLB 350?

ISLB 350 (Light Beam) is typically used for secondary beams, light-duty beams, and window/door lintels. It provides a section modulus of Zxx = 862.8 cm³, suitable for beams with moderate bending requirements.

Q.How much does a 6 metre ISLB 350 weigh?

A 6m length of ISLB 350 weighs 265.2 kg (0.265 tonnes). Weight formula: 44.2 kg/m × 6m = 265.2 kg.

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