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Corten Squares

  • ASTM A588 Steel Squares

Corten squares are commonly referred to as ASTM A588 squares. High strength and corrosion resistant Corten steel squares are available in 20’ lengths. We can cut to length if required.

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Square Bar Availability Additional Info

Square Bar Availability

Stock lengths for ASTM A588 are 20' (240") sections.
Inquire about sizes that are not shown in stock.
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Weight (per 20' sections)
1/2" x 240"
1/2" Thickness A588
17 lbs
5/8" x 240"
5/8" Thickness A588
26.56 lbs
3/4" x 240"
3/4" Thickness A588
38.26 lbs
1" x 240"
1" Thickness A588
68 lbs
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ASTM A588 covers high-strength low-alloy structural steel shapes, plates, and bars for welded, riveted, or bolted construction but intended primarily for use in welded bridges and buildings where savings in weight or added durability are important.

The atmospheric corrosion resistance of this steel in most environments is substantially better than that of carbon structural steels with or without copper addition.

When properly exposed to the atmosphere, this steel is suitable for many applications in the bare (unpainted) condition.

Corten squares will not arrive pre-rusted. Weathering steel will rust naturally when exposed to the weather.