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weather resistant steel,corten b steel sheet

Corten B

Cor-ten B weathering steel plate which is a weather resistant steel,corten b steel sheet is better suited for heavy and load bearing structures.Cor-ten steel is famous in weatheirng steel industry which including two kinds as Cor-ten A weatheing steel plate and Cor-ten B weathering steel plate.

Corten B – a weather resistant steel which is better suited for heavy and load bearing structures.
The material forms its own protective layer when exposed to atmospheric elements. Essentially, the top layer corrodes which then protects the steel beneath it. The natural finish does not normally require any form of maintenance such as painting, which makes the material a highly cost effective alternative to other structural steels.

Grades & Equivalents

CORTEN EN 10025-5:2004
Corten B S355J2W

Mechanical Properties

GRADE THICKNESS (MM)
STRIP PRODUCTS
PLATE PRODUCTS YIELD STRENGTH
REL N/MM²
MINIMUM
TENSILE STRENGTH
RM N/MM²
MINIMUM
ELONGATION
A50 %
MINIMUM
Corten B 2-13 6-40 345 485 19

Chemical Composition of Corten B

%
C 0.19
Si 0.30/0.65
Mn 0.80/1.25
P 0.035
S 0.030
Al 0.020/0.06
V 0.02/0.10
Cu 0.25/0.40
Cr 0.40/0.65
Ni 0.40

Painting and maintenance will be required if the structure is is continually wet as a protective layer will not form. An good example is where the base of the structure meets with the ground or is partially submerged.

Technical Requirements & Additional Services:

  • High tension test
  • Low temperature impacting test
  • Simulated post-welded heat treatment (PWHT)
  • Ultrasonic test under EN 10160,ASTM A435,A577,A578
  • Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
  • Shot blasting and Painting,Cutting and welding as per end user’s demands

Corten steel is a weather resistant steel that is often used in applications that are exposed to atmospheric elements as it is highly corrosion resistant. This type of steel is unique as it forms a thick layer of ‘rust’ when it comes into contact with the pollutants in the air, and this ‘rust’ provides a protective layer that prevents any further corrosion.

Painting and maintenance will be required if the structure is is continually wet as a protective layer will not form. An good example is where the base of the structure meets with the ground or is partially submerged.

 

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