ASTM A588 Angle


ASTM A588 is a high-strength, low-alloy (HSLA) steel containing small added amounts of copper, chromium and nickel. It is often left unpainted as it develops a weathered, orange-brown surface that is resistant to atmospheric corrosion, and thus leads to a longer life for weather-exposed applications. Its strength-to-weight ratio, and overall strengthening properties are similar to those of  A572 steel.


ASTM A588 is used in applications where savings in weight and/ or added durability (for corrosion resistance) are important. Such applications include: bridges, buildings, freight cars, construction equipment, smoke-stack liners, precipitators, transmission towers, and streetlight poles.

Sizes of ASTM A588 Angle

  •  0.5" x 0.5" thru 8" x 8"
  • Thickness: 0.125" thru 1"

Typical Chemical Properties

Carbon, Max %


Manganese, %

0.80 – 1.25

Phosphorus, Max %


Sulfur, Max %


Typical Mechanical Properties

Tensile Strength, ksi


Yield Point, ksi


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