Rolled Steel Beams As per Indian Standards

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Rolled Steel Beams in India

In India, rolled steel beams are classified into five series based on their dimensions and strength, as per the Indian Standards. These series include ISMB, ISJB, ISLB, ISHB, and ISWB. Each series has its own specifications and applications, and understanding these categories is essential for architects, engineers, and builders who work with rolled steel beams in India.

ISMB (I-Section Mild Steel Beams)

ISMB beams are the most commonly used rolled steel beams in India. They are versatile and can be used in a wide range of structures, including residential, commercial, and industrial buildings. ISMB beams are available in heights ranging from 150 mm to 900 mm, and widths ranging from 100 mm to 300 mm. They are manufactured in lengths ranging from 3 meters to 12 meters.

ISJB (I-Section Joint Beams)

ISJB beams are used in structures where there are joints or connections between beams and columns. These beams are designed to provide additional strength and stability to the structure. ISJB beams are available in heights ranging from 150 mm to 900 mm, and widths ranging from 100 mm to 300 mm. They are manufactured in lengths ranging from 3 meters to 12 meters.

ISLB (I-Section Long Beams)

ISLB beams are used in structures where long spans are required, such as in large warehouses, auditoriums, and industrial buildings. These beams are designed to provide maximum strength and stability to the structure. ISLB beams are available in heights ranging from 150 mm to 900 mm, and widths ranging from 100 mm to 300 mm. They are manufactured in lengths ranging from 6 meters to 18 meters.

ISHB (I-Section Hollow Beams)

ISHB beams are used in structures where aesthetics and weight are a concern, such as in residential and commercial buildings. These beams are designed to provide strength and stability while also reducing the weight of the structure. ISHB beams are available in heights ranging from 150 mm to 900 mm, and widths ranging from 100 mm to 300 mm. They are manufactured in lengths ranging from 3 meters to 12 meters.

ISWB (I-Section Wide Beams)

ISWB beams are used in structures where maximum strength and stability are required, such as in large industrial buildings and bridges. These beams are designed to provide maximum strength and stability to the structure. ISWB beams are available in heights ranging from 150 mm to 900 mm, and widths ranging from 300 mm to 600 mm. They are manufactured in lengths ranging from 6 meters to 18 meters.

References:

1. “Rolled Steel Beams in India: A Comprehensive Guide.” Steel Authority of India, 2022, <https://www.sail.co.in/products/rolled-steel-beams>.
2. “ISMB, ISJB, ISLB, ISHB, and ISWB: Understanding Rolled Steel Beams in India.” Construction World, 2022, <https://www.constructionworld.in/features/ismb-isjb-islb-ishb-and-iswb-understanding-rolled-steel-beams-in-india/>.
3. “Rolled Steel Beams: Types, Specifications, and Applications.” InfraBazaar, 2022, <https://www.infrabazaar.com/rolled-steel-beams-types-specifications-and-applications/>.

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Arbaj Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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