CORTEN A

Weathering steel, best-known under the trademark CORTEN A steel and sometimes written without the hyphen as "CORTEN A 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 CORTEN A. Although USS sold its discrete plate business to International Steel Group (now Arcelor-Mittal) in 2003, it still sells CORTEN A branded material in strip-mill plate and sheet forms.

The original CORTEN A received the standard designation ASTM A 242 TYPE-1("COR-TEN A") from the ASTM International standards group. Newer ASTM grades are A 588 ("CORTEN A") and A 606 for thin sheet. All alloys are in common production and use. JIS G 3125:2004
Japanese grade for weather resistant steel plates: Superior atmospheric corrosion resisting rolled steels
This Standard specifies the rolled steel having high atmospheric corrosion resistance, to be used for vehicle, building, steel tower and other structure. IRSM 41-97 Corrosion Resistance steel INDIAN grade for weather resistant steel plates: IRSM 41-97 standard of Indian railways specifically formed for wagon body due to it high resistance to corrosion,Major wagon builder being Rail Coach Factory. CORTEN A, ASTM 588 GR.A, ASTM 242 TYPE-1, JISG 3125 SPA-H, IRSM 41-97 Weather & Corrosion Resistant Steel Chemical Properties  

 
Corten – A ASTM 588 Grade A ASTM 242 TYPE -1     IRSM 41 -97
Carbon, Max 0.12 0.19 0.15 0.10
Manganese 0.20-50 0.80-1.25 1.00 0.25-0.45
Phosphorus 0.07-0.15 0.04 0.15 0.07-0.11
Sulphur, max 0.030 0.05 0.05 0.030
Silicon 0.25-0.75 0.30-0.65 0.25-0.40 0.28-0.72
Nickel, max 0.65 0.40 - 0.20-0.49
Chromium 0.50-1.25 0.40-065 - 0.30-0.50
Molybdenum, max - - - -
Copper 0.25-0.55 0.25-0.40 0.20 min 0.30-0.39
Vanadium - 0.02-0.10 - 0.050
Aluminimum - ... - 0.030
CORTEN A, ASTM 588 GR.A, ASTM 242 TYPE-1, JISG 3125 SPA-H, IRSM 41-97 Weather & Corrosion Resistant Steel Mechanical Properties
 Tensile Strength Min. Yield Point Elongation
CORTEN A [470 - 630 MPa] [355 MPa] 20 % min
ASTM 588 GR. A [485 MPa] [345 MPa] 21% min
ASTM 242 TYPE -1 [480 MPa] [345 MPa] 16% min
IRSM 41- 97 [480 MPa] [340 MPa] 21% min
 
We can supply : Thickness from 0.8 mm to 50mm
Width : from 750mm to 1500mm
Length : upto 12,000mm

PRODUCTS :

Corrosion Resistant Steel Plates | Sailma Grades Steel Plates & Sheets | Wear Plates As Per Hardox 400,

RAEX 400, JFE EH 360, FORA 400, XAR 400, DILLIDUR 400, 400 BHN Hardness Plates


Alloy Steel Plates / ASTM A 387-78 / Pressure Vessel Plates |EN10028 15MO3, 16MO3 , ASTM A 204 GRADE A ,

ASTM A 204 GRADE B , ASTM A 204 GRADE C


Boiler and Pressure Vessel Steel Plates | ASTM A36 , ASTM 283 GRADE A , ASTM 283 GRADE C , S27JR , S235JR ,

IS2062 GRADE A , IS2062 GRADE B , SS 400
| Stainless Steel Plates

Duplex / Super Duplex Steel | Inconel 625 (ALLOY 625 UNS N06625), Hastelloy C276 (ALLOY C276 UNS

N10276), Inconel 600 (Alloy 600 UNS N06600) , Inconel 825 (Alloy 825 UNS N08825), Inconel 800 (Alloy

800 UNS N08800), Monel 400 (Alloy 400 UNS N04400), Alloy 2


ASTM A 387 | ASTM 242 TYPE-1 | ASTM 588 GR.A | JIS G 3125 SPA H | IRSM 41-97

Corten A | Boiler Quality Plates ASTM A 516 GR. 60/70 | High Tensile Plates As Per Weldox, Dillimax

690, S690QL , Naxtra 70 , Weldox , JFE 780LE , Hiten 780