A36 Angles

Kloeckner Metals stocks A36 steel angles, created to add strength, resistance, and rigidity to structural performance applications.

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Typical Standards

FormatSize range
A363" x 2" x 3/16" - 8" x 8" x 1-1/8"

General Info About A36 Angles

A36 steel angles have a wide variety of uses, but are most commonly used as components in buildings and bridges. These angles are formed from a lightweight, hot-rolled, low-carbon steel alloy that features excellent weldability.

A36 steel angles are versatile, affordable, and sturdy. Formed as an alloy of manganese (1.03%), silicon (0.28%), carbon (0.25-0.29%), copper (0.2%0, sulfur (0.5%), and phosphorous (0.4%), these angles feature a yield point of 36,000 psi and a tensile strength of 58,000 psi. Their melting point stands at 2600F, and their Brinell Hardness reading is 133.

An A36 steel angle comes in a variety of sizes. The ideal angle size depends on what you’re building. Larger sizes are good for constructing beams or columns where you need maximum strength at minimal weight. Smaller sizes may be better suited to smaller projects like staircases, handrails, or posts.

To determine which size will work best for your project, consider how much weight you want to support with each angle piece—the larger the piece of angle iron you use, the more weight it will hold.

More Details About A36 S Beams

  • Advantages/Disadvantages

    A36 steel is a variety of low-alloy structural steel. It contains about 0.25% carbon and 1%-1.2% manganese, making it easier to work with than other varieties of steel but also giving it adequate strength for most applications.

    This type of steel is typically used in construction and mechanical engineering projects, which need a good mix of flexibility and durability at an affordable price.

    • Its main advantages are strength, affordability, and flexibility.
    • Its singular disadvantage is its low corrosion resistance due to the relatively minimal levels of nickel and chromium in the alloy.
  • Industries

    A36 steel angles are popular in a variety of industries and are used in both commercial and residential construction. In fact, A36 is one of the most widely used grades of steel, typically found in construction and general engineering projects. Common applications include stair treads, girders, structural framing members, and columns as well as crane runways.

  • Applications

    A36 steel angles are used in industrial, residential and commercial buildings to support walls, floors, and roof structures. They are lightweight but can support considerable burdens if installed correctly.

    This steel grade is exceptionally strong and affordable making it a popular choice for rails, racks, farm equipment, and structural supports. A36 steel angles are also often used on long-span structures such as arches or overpasses.

    A36 steel angles are commonly used by oil drillers in equipment like drilling rigs and derricks. In addition, everyday consumer uses of A36 steel angles include shelving, stair treads, and coffee tables.

  • Machining

    A36 steel is easy to tap, drill, punch, weld, or machine. This grade’s average surface cutting feed is 120 ft/min, and its machinability rate is estimated to be 72%.

  • Welding

    Since A36 steel is one of the most popular steel grades, it’s also one of the easiest to weld. Nearly any conventional welding process and tool will do the job.

    To weld A36 steel angles, however, you may want to experiment with a few specialized welding rods and an MIG welder. If you have access to a TIG welder, that would be ideal; if not, consider an alternative like spot welding.

  • Heat Treatment

    If it were not made of high-quality material, any kind of structure would collapse upon itself before long. Consequently, all structural steel has been heat treated to some degree.

    Although both structural grades A36 and A572 are intended for structural use, only A36 is cold-rolled (cold-drawn). Therefore, when you buy A36 steel angles, you can be sure that they’ve been heat treated. Angles have usually been pre-rolled prior to heat treatment, and often, the steel has been hot-dipped in zinc to galvanize it.

Chemical Properties

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

Mechanical Properties

Mechanical Properties
MetricImperial
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 KSI
Bulk Modulus (Typical for Steel)140 GPa20 KSI
Poissons Ratio0.2600.260
Shear Modulus79.3 GPa11.5 KSI

Frequently Asked Questions About A36 Angles

  • What type of steel are angles?

    ANSWER:

    A36 steel is a type of structural quality mild steel that’s often used in building construction, bridge construction, and various other large-scale projects. When it comes to angles, we typically recommend using A36 as opposed to other types of angle steel due to its strength, affordability, and weldability.

  • What size does the A36 angle come in?

    ANSWER:

    A36 steel angles come in many different sizes. Commonly, they are cut at 2×2, 2×3, 2×4, or 2×6. With a variety of sizes available, you can find exactly what you need. Remember that all dimensions are nominal.

  • What does the 36 mean in A36 steel?

    ANSWER:

    The designation “A36” is part of the designation system used across North America to classify steel types. The “A” stands for “ferrous products,” and the “36” is a randomly assigned numerical identifier.

  • What is the difference between structural angle and bar angle?

    ANSWER:

    Structural angle and bar angle are similar in their shape, but can be used for different purposes.

    Structural angle is bent on two sides and straight on the other two, while bar angle is bent on all four sides. This difference results in structural angles having a slightly sharper profile than bar angles.

    Structural angles are commonly used in construction where the top of the beam has a hole drilled through it, allowing bolts or cables to pass through and help hold the structure together.

  • What are different ASTM A36 shapes?

    ANSWER:

    ASTM A36 is a standard specification for carbon steel plates, shapes, and bars. These products are available in many different shapes.

    ASTM stands for American Society for Testing and Materials which puts out many standards and specifications for materials such as these including: seamless pipes, welded tubes, pipe fittings, flanges (in several different forms), steel bars, and angles.

    The list goes on; you can find many different types of ASTM-certified materials if you need them. It is important to note that sometimes grade designations are not always published alongside each shape type – so be sure to inquire with your supplier if you don’t see what you need listed!

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