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ASTM A36 Alloy Steel sheet

A36 Alloy Steel sheet

A36 is the most commonly used mild and hot-rolled steel. It has excellent welding properties and is suitable for grinding, punching, tapping, drilling and machining processes. 

Yield strength of A36 is less than that of cold roll C1018, thus enabling A36 to bend more readily than C1018. 

A36 steel can be manufactured into various structural steel parts, it is vastly used in many different industries for a variety of applications.


why choose A36? 

It provide good mechanical property and cost less. For example, it is also used in many bridge construction. Buildings are frequently constructed with A36 steel because of its high strength and toughness. Further more, A36 steel is also used in fields of automotive, construction, heavy equipment, and oil and gas industries.

This standard applies to riveted, bolted and welded structures for bridges and buildings, as well as carbon steel sections, steel plates and bars of structural steel quality for general purposes.

The yield of A36 steel plate is about 240MP, and its yield value will decrease as the thickness of the material increases. Due to the moderate carbon content, the overall performance is better, the strength, plasticity, and welding properties are better matched, and it is the most widely used.

Chemical composition and mechanical properties Of A36 steel 

Chemical composition of A36 steel 

Physical properties of A36 steel 
GradeTensile strengthYield pointElongation after breakingDensity
A36400 - 550 MPa250 MPa20.0 %7.85 g/cm3

  • Heat Treatment:

Any standard carburizing and hardening methods of AISI 1018 steel is suitable for ASTM A36.

  • Applications:

It is used in bolted, riveted or welded construction of bridges, buildings and oil rigs.It is used in forming tanks, bins, bearing plates, fixtures, rings, templates, jigs, sprockets, cams, gears, base plates, forgings, ornamental works, stakes, brackets, automotive and agricultural equipment, frames, machinery parts.It is used for various parts obtained by flame cutting such as in parking garages, walkways, boat landing ramps and trenches.

  • Welding:

A36 steel is easy to weld using any type of welding methods, and the welds and joints so formed are of excellent quality.

  • Machining:

The machinability rate of A36 is estimated to be 72%, and the average surface cutting feed of  A36 is 120 ft/min.


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