Cor-ten Steel Design

 

Weathering steel, best-known under the trademark COR-TEN steel and sometimes written without the hyphen as "Corten 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.


United States Steel Corporation (USS) holds the registered trademark on the name COR-TEN.[1] Although USS sold its discrete plate business to International Steel Group (now Arcelor-Mittal) in 2003,[2] it still sells COR-TEN branded material in strip-mill plate and sheet forms.


The original COR-TEN received the standard designation A 242 ("COR-TEN A") from the ASTM International standards group. Newer ASTM grades are A 588 ("COR-TEN B") and A 606 for thin sheet. In Indian Standards is applicable as per IRS M-41. All alloys are in common production and use.


Grade

%C

%Si

%Mn

%P

%S

%Cr

%Cu

%V

%Ni

Cor-ten A

0.12

0.25-0.75

0.20-0.50

0.07-0.15

0.030

0.50-1.25

0.25-0.55

0.65

Cor-ten B

0.16

0.30-0.50

0.80-1.25

0.030

0.030

0.40-0.65

0.25-0.40

0.02-0.10

0.40

 

MSA-COR-01

MSA-COR-02

MSA-COR-03

MSA-COR-04

 

Design by Crystalline Technologies

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