What are the characteristic of CORTON STEEL?

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It is Corten steel.Grade A & B.

Weathering steel, best-known under the trademark COR-TEN steel, is a group of steel alloys which were developed to obviate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years.

The original COR-TEN received the standard designation A242 ("COR-TEN A") from the ASTM International standards group. Newer ASTM grades are A588 ("COR-TEN B") and A606 for thin sheet. All alloys are in common production and use.
It is a weather-resistant steel which is used in containers and hot flue gas line.

The American "Corten A" Steel has a composition of C, 0.12; Si, 0.5; Cu, 0.5; Cr, 0.8; P, 0.1 and Mn, 0.5%. Although the tensile strength is less than 494 MPa the yield is in the region of 371 MPa.

The combination of copper and phosphorus also increases the resistance to atmospheric corrosion which is important when thinner plates are used. The original steel "A" suffers a decrease in yield strength and notch ductility in thickness over 25 mm, to overcome which "Corten B" was developed-C 0.14; P 0.04; Mn 1.1; Cr 0.5; Cu 0.4; V 0.1; Bol Al 0.02.

COR-TEN A applies to plates up to 12.5mm in thickness, COR-TEN B applies to plates up to 50mm in thickness.

It has been used in bridge and other large structural applications such as the New River Gorge Bridge, the newer span of the Newburgh-Beacon Bridge, and the creation of the Australian Centre for Contemporary Art (ACCA).

It is very widely used in marine transportation, in the construction of shipping containers.
 

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