ASTM A36

ASTM A36 Steel Plate

A36 Steel is the American Society for Testing and Materials (ASTM) designation for carbon steel. ASTM A36 steel is the

most common type of steel used in construction. Its properties allow the steel to be used in many applications,

unlike higher-performance alloys.

Steel Composition

Steel alloys are composed mostly of iron. However, each alloy has differing amounts of other materials, such as carbon,

nickel, manganese, tungsten and molybdenum. The different compositions create different properties among alloys.

All steel alloys have a modulus of elasticity, or measurement of stiffness, of 29 million psi. Modulus of elasticity is used to

calculate when a piece of steel will deform too much to carry a load safely. Other properties of steel include yield strength,

or maximum stress before the steel deforms permanently; allowable bending stress, or stress the steel can safely carry

before contorting out of plane; and ultimate limit, or stress at which the steel will completely fail.

ASTM A36 Steel Properties

ASTM A36 has a yield strength of 36,000 psi and an allowable bending stress of 22,000 psi. The properties of ASTM A36

steel allow it to deform steadily as stress is increased beyond its yield strength. This ductility allows buildings to stand long

after the limits of a structure have been met in an emergency, allowing the inhabitants to exit safely before collapse.

Other high-performance steels, such as bridge strand, are extremely strong but brittle, and there is minimum deformation

before the bridge strand breaks violently.

Uses

As mentioned, ASTM A36 is the most common type of steel alloy. It is used for most building components, including columns,

beams, decking and finish elements. The ductility of ASTM A36 doesn't allow the alloy to be used as cable, and it should not be

used as reinforcing bar (rebar). Nevertheless, the majority of other uses are perfect for ASTM A36.

Chemical Requirements:

• Carbon up to .29 maximum depending on thickness
• Manganese range of .80 to 1.20 depending on thickness
• Phosphorous is .04 maximum
• Sulfur is .05 maximum
• Silicon range of .15 to .40 maximum depending on thickness

Mechanical Requirements:

• Yield Strength is  36 ksi (36,000psi) minimum
• Tensile Strength can range from 58 to 80 ksi (58,000psi to 80,000psi)
• Elongation in 2”(50mm) test is 23% minimum
• Elongation in 8”(200mm) test is 20% minimum

A36 Mild Steel Plates thickness min 3mm to max.390mm

We can produce steel plate thickness 5mm X width 2000mm X your choice of length.