Corten and weathering steel are often used interchangeably because they are essentially the same material. Weathering steel is the generic name while Cor-Ten® is the United States Steel Corporation's trade name for atmospheric corrosion resistant steel.

Ideal for outdoor structural projects, Corten steel utilizes a protective oxide coating that prevents atmospheric corrosion from environmental conditions. The oxidation film allows for enhanced corrosion resistance versus regular carbon steel, offering a low-maintenance option for a variety of construction projects and applications.

Industrial Metal Supply stocks ASTM A606-4 sheet and plate in a variety of gauges (thicknesses). Benefits of buying weathering steel from IMS include:

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Weathering Steel Basics

Corten, also known as weathering steel, is a group of steel alloys developed to eliminate the need for painting. Instead, the surface forms a stable rust-like appearance when exposed to environmental elements. We sell our weathering steel in its original state. The rustic appearance (reddish-brown rust color) occurs over time when exposed to atmospheric corrosion.  

Corten is also known under ASTM A606-4, A588, or A847.

ASTM A606 Type 4 Steel

Properties of ASTM A606 Type 4 steel include the following:
  • Machinable
  • Weldable (ideally to other weathering steel alloys)
  • Lighter than carbon steel
  • Ideal for high strength-to-weight ratio applications

Benefits of ASTM A606-4 Corten Plate and Sheet

With its high tensile strength and corrosion resistance, ASTM A606-4 corten steel provides advantages over carbon steel, including:
  • Ideal for load-bearing structures
  • Reddish-brown appearance makes it aesthetically appealing
  • Can withstand high heat levels without corrosion
  • Minimal maintenance/future maintenance
  • Eliminates the need for initial and future paint maintenance
  • Eco-friendly/recyclable

Weathering Sheet and Plate Application Uses

Common uses for weathering sheet and plate include:
  • Sculptures
  • Building structures
  • Welded bridges
  • Roofing
  • Landscaping
  • Corrugated panels

Get Your Corten Steel Sheet and Plate Quoted Today

As a trusted metal supplier for businesses in Southern California, Arizona, and Northern Mexico, let us get you the Corten steel plate and sheet you need for your next project. Stop by one of our California or Arizona locations or request a quote today.