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ISLB 250

Light Beam25.8 kg/m

Indian Standard Light Beam — IS 808:2021 | Depth 250mm × Width 125mm

Cross-Section (mm)
250125tw=6.1tf=8.9
Weight Calculator
25.8 kg/m × 6m × 1 =
154.8kg
0.155tonnes
Section Properties
Depth (D)250 mm
Width (B)125 mm
Web Thickness (tw)6.1 mm
Flange Thickness (tf)8.9 mm
Weight per Metre25.8 kg/m
Cross-sectional Area32.89 cm²
Moment of Inertia (Ixx)4323.7 cm⁴
Moment of Inertia (Iyy)224.2 cm⁴
Section Modulus (Zxx)345.9 cm³
Section Modulus (Zyy)35.9 cm³
Radius of Gyration (rxx)11.46 cm
Radius of Gyration (ryy)2.61 cm
Related Sections
ISLB 225
225mm × 110mm · 22 kg/m
Ixx 2873.7 cm⁴ · Zxx 255.4 cm³
ISLB 275
275mm × 140mm · 30.3 kg/m
Ixx 6323 cm⁴ · Zxx 460 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 250 per metre?

ISLB 250 weighs 25.8 kg per metre as per IS 808. For a standard 6m length, the total weight would be 154.8 kg.

Q.What are the dimensions of ISLB 250?

ISLB 250 has a depth of 250mm, flange width of 125mm, web thickness of 6.1mm, and flange thickness of 8.9mm.

Q.What is the moment of inertia of ISLB 250?

The moment of inertia of ISLB 250 is Ixx = 4323.7 cm⁴ (major axis) and Iyy = 224.2 cm⁴ (minor axis).

Q.When should I use ISLB 250?

ISLB 250 (Light Beam) is typically used for secondary beams, light-duty beams, and window/door lintels. It provides a section modulus of Zxx = 345.9 cm³, suitable for beams with moderate bending requirements.

Q.How much does a 6 metre ISLB 250 weigh?

A 6m length of ISLB 250 weighs 154.8 kg (0.155 tonnes). Weight formula: 25.8 kg/m × 6m = 154.8 kg.

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