A36 steel is a staple in the steel industry and Kloeckner Metals routinely stocks it in coil, cut to length, hot rolled, and discrete formats nationwide.

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Typical Standards

FormatGrade Sizes routinely stocked (Imperial units)
Thickness WidthLength
CoilSA363/16" - 1/2" 84", 96"Any
Cut to LengthSA363/16" - 1/2"84" - 96"Any
Hot Rolled (Strip Mill)A36 / SA363/16", 1/4", 5/16", 3/8", 7/16", 1/2"48", 60", 72"Any
Discrete (Mill Rolled)A36 / SA363/16", 1/4", 5/16"84" - 120"240" - 480"
Discrete (Mill Rolled) A36 / SA363/8" - 12"72" - 144"240" - 480"

General Info About A36

A36 is the most common type of steel plate used in construction because of its ratio of strength to ductility, but it shows up in a wide range of industries due to its broad versatility.

More Details About A36

  • Advantages/Disadvantages

    This grade is easily machined, welded, and formed, making it a versatile all-purpose steel. It is fairly ductile and can elongate to about 20% of its original length when testing its tensile strength. The combination of strength and ductility means it has excellent impact strength at room temperature. Because of its low carbon content, it can be heat treated without adverse effects on its properties. One disadvantage to A36 steel is that it does not have high corrosion resistance due to its low levels of nickel and chromium.

  • Industries

    This steel grade is used in a number of industries, including infrastructure, construction, oil and gas, and the industrial manufacturing industry.

  • Applications

    A36 steel plate is the most common type of steel alloy.

    • You will find it in most building components, including beams, decking, columns, and finishing elements.
    • It is used in the construction of bridges and oil rigs.
    • It is also used in automotive and agricultural equipment.
    • It is used in a huge range of items, including forming tanks, bins, bearing plates, fixtures, rings, templates, jigs, sprockets, cams, gears, base plates, forgings, ornamental works, stakes, brackets, frames, machinery parts.
    • It is used for various parts achieved with flame cutting including parking garages, walkways, boat landing ramps, and trenches.

    Somewhere you won’t find it is in reinforcing bar, or rebar, because of its high ductility, but otherwise, it is a great standby for your steel plate needs.


  • Machining

    The machinery rate is about 72%, while the average surface putting feed is 120 feet per minute. It is not as easy to machine as, for example, 1018.

  • Welding

    A36 steel plate has good weldability and any welding method can be used. The welds and joints will be high quality.

  • Heat Treatment

    It can be heat treated at the following temperatures:

    • Normalizing at 899°C – 954°C (1650°F-1750°F)
    • Annealing at 843°C – 871°C (1550°F-1600°F)
    • Stress relieving at 677°C – 927°C (1250°F-1700°F)
    • Carburizing at 899°C – 927°C (1650°F-1700°F)
    • Hardening at 788°C – 816°C (1450°F-1500°F)

Chemical Properties

0.25 - 0.290%0.20%98.0%1.03%0.040%0.280%0.050%

Mechanical Properties

Mechanical Properties
Tensile Strength, Ultimate400 - 550 MPa58,000 - 79,800 PSI
Tensile Strength, Yield250 MPa36,300 PSI
Elongation at Break (in 200 mm)20.0%20.0%
Elongation at Break (in 50 mm)23.0%23.0%
Modulus of Elasticity200 GPa29,000 KSI
Bulk Modulus (Typical for Steel)140 GPa20,300 KSI
Poissons Ratio0.2600.260
Shear Modulus79.3 GPa11,500 KSI

Frequently Asked Questions About A36

  • What does ASTM A36 mean?


    A36 Steel is the American Society for Testing and Materials (ASTM) designation for carbon steel with a yield strength of 36,000 PSI. Unlike most other grades that are designated by their chemical composition, the “36” corresponds to its mechanical properties. This has to do with the fact that while with other grades, their chemical composition is the determining factor for important properties, for A36, its yield strength is its defining characteristic, while the chemical composition is less strict.

  • Is A36 hot or cold rolled?


    ASTM A36 steel is one of the most widely manufactured steel plates because of its strength and versatility. While it can be both hot rolled or cold drawn, it is typically hot rolled.

  • What is the difference between A36 and SA36?


    The difference between an A and a SA designation has to do with ASME Boiler and Pressure Vessel Code endorsement. If A36 steel meets the SA specification for ASME Boiler and Pressure Vessel Code, Section II, then it can be designated SA36 and can be used in boiler and pressure vessels.

    Learn more about the difference between A36 and SA36.

  • How is A36 made?


    Like most carbon steel plates, it is made when iron ore, coal, and alloying elements are mixed in a furnace, burning away impurities. Once the correct chemical composition has been achieved, it is solidified into an ingot. A36 is typically hot rolled, meaning it is formed to its final dimensions at elevated temperatures using rollers.

  • What kind of steel is A36 plate?


    We consider it to be structural steel plate, carbon steel plate, HSLA steel plate, and, at thicknesses over 3″, heavy steel plate.

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