Cor-Ten® Steel

Cor-Ten®

Cor-Ten® is United States Steel Corporation (USS) trade name for an atmospheric corrosion resistant steel it developed to be used where higher strength and longer life cycle material were desired. These steels naturally form a layer of rust or patina when exposed to various atmospheric conditions. This patina is what the guards this material against future corrosion. As Cor-Ten® became more popular over the years other producing mills began to develop their own atmospheric corrosion resistant steel. Therefore, ASTM stepped in a created what is considered equivalent specifications to Cor-Ten® in most applications.

The applicable equivalent ASTM specifications are

Steel Products
Sheet-1

HIGH STRENGTH WEATHERING STEEL
SHEET AND COIL
ASTM A588, A606-4 And A709-50W

High Strength Weathering Steel Plate

HIGH STRENGTH WEATHERING STEEL
PLATE
ASTM A588, A242 and A709-50W

Steel Shapes

High Strength Weathering Steel Angles
ASTM A588 and A709-50W

Beams and MC Channel
ASTM A588 And A709-50W

Weathering Steel Flats

High Strength Weathering Steel Flats
ASTM A588 and A709-50W

High Strength Weathering Steel Channels
ASTM A588 and A709-50W

Round-1

High Strength Weathering Steel Rounds
ASTM A588 and A709-50W

Flat-2

High Strength Weathering Steel Squares
ASTM A588 and A709-50W

Hollow Structural Sections