Classification of Hot Rolled Steel (IS 808: 1989)

In India, the Structural Steel sections produced including open section such as Beams, Columns, Channels and angles are designated in a standard manner with the letters IS indicating Indian Standard Specifications followed by the letter indicating the classification and type of section and a number indicating the size of section. Usually depth of section is chosen to indicate its size.

The Classifications Hot rolled steels are as follows

1.    Beams

1.1.Indian Standard junior beams (ISJB)

1.2.Indian Standard light weight beams (ISLB)

1.3.Indian Standard medium weight beams (ISMB)

1.4.Indian Standard wide flange beams (ISWB)

2.    Columns

2.1.Indian Standard column sections (ISSC)

2.2.Indian Standard heavy weight beam (ISHB)

3.    Channels

3.1.Indian Standard junior channels (ISJC)

3.2.Indian Standard light weight channels (ISLC)

3.3.Indian Standard medium weight channels (ISMC)

3.4. Indian Standard mediumweight parallel flange channels (ISMCP)

4.    Angles

4.1.Indian Standard equal leg angles (ISA)

4.2.Indian Standard unequal leg angles (ISA)

UNIT WEIGHT OF ISJB

This is One of the standardized categories of hot-rolled steel, shaped I-beams. Simply we can say it is a lighter version of an I-Beam (ISMB)

Unit Weight of ISJB is as Follows

1). ISJB 150X50 - 7.1

2). ISJB 175X50 - 8.1

3). ISJB 200X60 - 9.9

4). ISJB 225X80 - 12.8

In general it seems like ISMB. However the Width / Depth, Thickness of flange and web is lesser thickness than the ISMB. Usually the flange slope is 1.5 Degree, Where as ISMB is having 8 Degree of flange slope

For Table, please click on the picture below

For More details about different type of Steel Section Click Steel Section

For Unit Weight of ISMB Click ISMB

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