MARKET FORMS OF STEEL
Following are the standard shapes in which the rolled steel sections are available in the market- 1. Angle sections- The Angle section may be equal legs or unequal legs. The equal angle sections are available in sizes varying from 20 mm x 20 mm x 3 mm to 200 mm x 200 mm x 25 mm. The corresponding weight per meter length are respectively 9 N and 736 N. The unequal angle sections are available in sizes varying from 30 mm x 20 mm x 3 mm to 200 mm x 150 mm x 18 mm. The corresponding weight per meter length are respectively 11 N and 469 N. The angle section extensively used in the structural steel work especially in the construction of steel roof trusses and filler joist floors. 2. Channel Section- The channel section consist of a web with two equal flanges. A channel section is designated by the height of web and width of flange. These sections are available in sizes varying from 100 mm x 45 mm to 400 mm x 100 mm. The corresponding weights per metre length are respectively 5...
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