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Corten-A/Corten-B 

CORTEN-A / CORTEN-B / S355JOWP / S355J2WP / S355JOW / S355J2W / IRSM41-97 / IRS-M41 / IRSM-41 / JIS G3125 SPA-H CORROSION RESISTANT / WEATHER RESISTANT STEEL SHEET, PLATE COLD ROLLED & HOT ROLLED, ASTM A423, ASTM A847 WELDED ERW SEAMLESS TUBES, PIPES, ROUND, SQUARE, RECTANGULAR


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

Definition
Weathering means that due to their chemical compositions COR-TEN A and COR-TEN B steels, when utilized unprotected, exhibits increased resistance to atmospheric corrosion compared to unalloyed steels. This is because it forms a protective layer on its surface under the influence of the weather.

Applications
The steel is used for various types of welded, bolted and riveted constructions e.g. steel frame structures, bridges, tanks and containers, exhaust systems, vehicles and equipment constructions.
Basic guidelines for the use of this steel in the unprotected condition are described in EN 10025-5 and DASt rule 007.

Chemical Composition (heat analysis, %)

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


In order to obtain fine grain structure a sufficient amount of nitrogen absorbing elements is added (e.g. ≥0.02% Al).

Mechanical Properties, in the state of delivery condition
At room temperature for plates ≥3mm in thickness (transverse test specimans, according to EN 10002). Requirements to hot rolled plates ≤3mm in thickness according to EN 10025-5.

Grade Minimum yield point (ReH Mpa *) Tensile strength Rm MPa Minimum elongation A (Lo=5.65 √So) %
COR-TEN A 355 470-630 20

*) 1 Mpa = 1N/mm2

In case of cold rolled material the yield point is min. 310 Mpa and the tensile strength min. 445 MPa. Furthermore cold rolled sheets ≤3mm in thickness made of steel grade COR-TEN A-F for increased demand to the cold formability is available.

Mechanical properties:
  • Yield point min. 275 Mpa
  • Tensile strength min. 410 Mpa
  • elongation min. 25%
  • Tolerances on dimensions and shape according to EN 10131.


Grade Material thickness mm Minimum yield point (ReH Mpa *) Tensile strength Rm MPa Minimum elongation A (Lo=5.65 √So) %
COR-TEN B ≤16 355 470-630 20
≤16 345

*) 1 Mpa = 1N/mm2

The notched-bar impact energy is determined on ISO-V longitudinal test specimens at a temperature of - 20°C as an average of three tests. For product thicknesses ≥10mm the average value is at least 27 J. For thicknesses between 10mm and 6mm, the minimum impact value is reduced proportionally to the specimen width (product thickness).

No impact test is performed on products below 6mm in thickness.

Number of Tests
  • 1 tensile test
  • 1 test specimen per 40 t from each heat*)
  • Notched bar impact test
  • 1 set specimens per 40 t from each heat *)
  • (3 specimens) (at test temperature -20°C)

*) as referenced in EN 10025-5

EQUIVALENT SPECIFICATIONS

Material # EN 10155 SEW 087 NFA 35-502 UNI BS 4360 UNE ASTM JIS G3114
1.8961 S235J2W WTSt 37-3 E 24 W 4 Fe 360 DK 1 - - - -
1.8945 S355J0WP E 36 WA 3 Fe 510 C1K1 WR 50 A - - - -
1.8946 S355J2WP - E 36 WA 4 Fe 510 D1K1 - - A 242 Type 1 -
1.8959 S355J0W - E 36 WB 3 Fe 510 C2K1 WR 50 B - A 588 - A 242 Gr. 1 SMA 50 AW
1.8963 S355J2G1W WTSt 52-3 - Fe 510 D2K1 WR 50 C - A 588 Gr. A to
1.8965 S355J2G2W - - - - - - SMA 50 CP
1.8966 S355K2G1W - E 36 WB 4 - - - A 709 Gr. 50 W -
1.8967 S355K2G2W - - - - - - -


CORROSION RESISTANT AND WEATHER RESISTANT STEEL CAN BE ALSO SUPPLIED ACCORDING TO FOLLOWING STANDARD & SPECIFICATIONS :
  • COR-TEN® A, COR-TEN®A, COR-TEN A, CORTEN-A, CORTEN A
  • COR-TEN® B, COR-TEN®B, COR-TEN B, CORTEN-B, CORTEN B
  • ASTM A588 Grade A, ASTM A 588 Grade-A, ASTM A-588 Grade A
  • ASTM A588 Grade B, ASTM A 588 Grade-B, ASTM A-588 Grade B
  • ASTM A588 Grade C, ASTM A 588 Grade-C, ASTM A-588 Grade C
  • ASTM A242 Type 1, ASTM A242 Type-1, ASTM A-242 Type 1 
  • S355JOWP EN 10025-5, S355JOWP EN10025-5, S355 JOWP EN-10025-5
  • S355JOWP+N EN 10025-5, S355JOWP+N EN10025-5, S355 JOWP+N EN-10025-5
  • S355J2W EN 10025-5, S355J2W EN10025-5, S355 J2W EN-10025-5
  • S355J2W+N EN 10025-5, S355J2W+N EN10025-5, S355 J2W+N EN-10025-5 
  • S355J2G1W EN 10155, S355J2G1W EN10155, S355 J2G1W EN-10155
  • S355K2G1W EN 10155, S355K2G1W EN10155, S355 K2G1W EN-10155
  • S355J2G2W EN 10155, S355J2G2W EN10155, S355 J2G2W EN-10155
  • S355K2G2W EN 10155, S355J2G2W EN10155, S355 K2G2W EN-10155
  • SAILCOR IRSM41, IRSM-41, IRS-M41, IRS-M41, IRS M41-97 FOR RAILWAY WAGON & CONTAINER
  • JIS G3125 SPA-H, JIS G3125-SPAH, JIS:G3125-SPA-H, JIS-G3125 Grade SPA-H, G3125-SPAH 

Certificate & Inspection : c/w Calibration Works Certificate EN10204 3.1/DIN 50049 3.1/ISO10474 3.1 Mill Test Report, NACE MR-01-03/NACE MR-01-75/ISO-15156, CE Marked, European Pressure Equipment Directive PED 97/23/EC, AD 2000-WO, ASME Boiler & Pressure Vessel Code Section-II Part-A Edition 2008, API 6A, with 3.2 certificate duly certified & approved by LRS-Lloyd's Register, GL-Germanischer Lloyd, BV-Bureau Veritas, DNV-Det Norske Veritas, ABS-American Bureau of Shipping, SGS, TUV, RINA, IRS, NORSOK APPROVED STANDARD M630, M650 Rev.3


If you have any requirement of above items, please feel free to contact us


Regards,


CONTACT PERSON :

 


MUKESH SHAH
Director 
Mobile No. 0091 - 9820292499 
Email - 
marketing@rolexmetals.com


ROLEX METAL DISTRIBUTORS 
( A METAL & STEEL Company ) 
57-A, KHATARGALLI, 
THAKURDWAR, 
MUMBAI - 400002, INDIA. 
TEL.No. 0091-22-23858802 
TEL.No. 0091-22-23823963 
FAX No. 0091-22-23898724 
Email - 
marketing@rolexmetals.com 
Website – 
www.rolexmetals.com

 
 

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KALAMBOLI WAREHOUSE – kalamboli@rolexmetals.com

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