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ISMB 125

Medium Beam13 kg/m

Indian Standard Medium Beam — IS 808:2021 | Depth 125mm × Width 75mm

Cross-Section (mm)
12575tw=4.4tf=7.6
Weight Calculator
13 kg/m × 6m × 1 =
78.0kg
0.078tonnes
Section Properties
Depth (D)125 mm
Width (B)75 mm
Web Thickness (tw)4.4 mm
Flange Thickness (tf)7.6 mm
Weight per Metre13 kg/m
Cross-sectional Area16.6 cm²
Moment of Inertia (Ixx)445 cm⁴
Moment of Inertia (Iyy)38.4 cm⁴
Section Modulus (Zxx)71.2 cm³
Section Modulus (Zyy)10.2 cm³
Radius of Gyration (rxx)5.18 cm
Radius of Gyration (ryy)1.52 cm
Related Sections
ISMB 100
100mm × 75mm · 11.5 kg/m
Ixx 257.5 cm⁴ · Zxx 51.5 cm³
ISMB 150
150mm × 80mm · 15.6 kg/m
Ixx 767.1 cm⁴ · Zxx 102.3 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 ISMB 125 per metre?

ISMB 125 weighs 13 kg per metre as per IS 808. For a standard 6m length, the total weight would be 78.0 kg.

Q.What are the dimensions of ISMB 125?

ISMB 125 has a depth of 125mm, flange width of 75mm, web thickness of 4.4mm, and flange thickness of 7.6mm.

Q.What is the moment of inertia of ISMB 125?

The moment of inertia of ISMB 125 is Ixx = 445 cm⁴ (major axis) and Iyy = 38.4 cm⁴ (minor axis).

Q.When should I use ISMB 125?

ISMB 125 (Medium Beam) is typically used for primary beams, lintels, and columns in building frames. It provides a section modulus of Zxx = 71.2 cm³, suitable for beams with moderate bending requirements.

Q.How much does a 6 metre ISMB 125 weigh?

A 6m length of ISMB 125 weighs 78.0 kg (0.078 tonnes). Weight formula: 13 kg/m × 6m = 78.0 kg.

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