ASTM A-588 Channel

A588 channel

Characteristics

A588 channel is a HSLA steel containing small additions of copper, chromium and nickel.  The atmospheric corrosion resistance of this steel is a minimum of four times that of regular carbon steel. These steels are often used unpainted and develop a weathered orange-brown surface that is resistant to corrosion. ASTM A-588 Grade A is weldable, formable, and machinable when using the appropriate techniques.

Applications

For use in bridges, buildings, freight cars, construction equipment, smoke-stack liners, precipitators, transmission towers, and light poles where savings in weight and/or added durability are important.

Sizes

  • Depths: 0.5" thru 18"         
  • Flange Widths: 0.125" thru 5" 

Typical Chemical Properties

Carbon Max, %

0.19

Manganese, %

0.80 – 1.25

Phosphorus Max, %

0.04

Sulfur Max, %

0.05

Typical Mechanical Properties

Tensile Strength, ksi

70

Yield Point, ksi

50

All sizes of ASTM A-588 are silicon killed.

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