Corten A Weathering Steel

Corten A Weathering Steel

CortenA is a type of American Standard labeled Cu-P series steel, which belongs to low alloy high-strength atmospheric corrosion-resistant structural steel, and is called weathering steel in China.
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Technical Parameters

CortenA Weathering Steel


Corten A is a type of American Standard labeled Cu-P series steel, which belongs to low alloy high-strength atmospheric corrosion-resistant structural steel, and is called weathering steel in China. It is a type of Corten steel. Corten steel, also known as Corten steel, is divided into two categories: Corten A, CortenB.

 

Corten A is a weather resistant steel created by alloying copper, chromium and nickel.

 

In addition to this, Corten A has added phosphorous which makes the material best suited for gas flue applications and for aesthetic facias The material is not recommended in heavy load bearing applications – in this case Corten B or S355J2W should be considered.

 

Grades & Equivalents

Corten         EN 10025-5:2004

Corten A     S355 J0WP

 

S355J0WP is a structural weathering steel which is also referred to as atmospheric corrosion resistant steel.
The main alloying elements are chromium nickel and copper with added phosphorous which gives it excellent self protecting qualities. As the steel reacts with elements in the atmosphere, the material forms a layer of rust over time which in essence protects the steel from corrosion.


S355J0WP (which is an equivalent grade to Corten A) provides a long lasting and economic structural steel solution for use in applications such as steel bridges stack gas applications and in steel sculptured buildings due to the material's aesthetically pleasing finish.

 
corten a weathering steel plate chemical composition

 

Grade C Si Mn P S Al V Cu Cr Ni
CORTEN A 0.12 max 0.25 - 0.75 0.20 - 0.50 0.07 - 0.15 0.030 max 0.015 - 0.06 - 0.25 - 0.55 0.50 - 1.25 0.65 max

 

 
corten a corten steel material mechanical property

 

Tensile Strength Min. Yield Point Elongation  
CORTEN A [470 – 630 MPa] [355 MPa] 20 % min

 

 
Heat Treatment of Corten Steel Grade A Structural Steel Plates

 

Heat Treatment Temperature °C
Normalising 860-940 (target 910)
Stress Relieving 550-600 (target 580)

S355J0WP Grades & Equivalents vs S355J0WP Chemical Composition & Mechanical Properties

S355J0WP Grades & Equivalents vs S355J0WP Chemical Composition & Mechanical Properties

 

 
corten a steel sheets Products Details

Corten steel grade A242 is known as Corten A , And Corten Steel grade A588 Is Known As Corten B. Corten Steel Is Available In Corten Steel Pipes, Corten Steel Tubes, Corten Steel Fittings And Corten Steel Plates Form.

 

The atmospheric corrosion resistance of Corten-A is due to the formation of a dense layer of rust on the surface of the steel, the steel matrix is isolated from the air and effectively prevent the continued growth of rust. special elements contained in COR-TEN, in contact with the atmosphere, the formation of a layer of oxides film, this layer of solid film so that the COR-TEN in the outside world is isolated from the influence of the climate, and to achieve the purpose of weathering and corrosion resistance. When Corten-A or ordinary steel is exposed to the atmosphere, chemical reactions occur when it comes into contact with moisture and oxygen.

 

Corten-A weathering steel is made by adding a little copper, chromium, phosphorus and other elements to ordinary steel, and through special treatment, its weathering and corrosion resistance is three to eight times higher than that of ordinary steel. Depending on the type and application, CortenA can be categorized into four types: COR-TEN A, COR-TEN B, COR-TEN C, and COR-TENB-QT. Among them, COR-TEN A's weathering and corrosion resistance is five to eight times better than that of ordinary steel, while COR-TEN B's is four times better.

FAQ About Corten A steel

 

What is Corten grade A?

Corten Grade A is a weathering steel that belongs to the ASTM A588 specification. It is a high strength and low alloy steel with exceptional corrosion resistance & durability. Corten A Plate is primarily used in outdoor structural applications like bridges, buildings and architectural elements.

 

What is the difference between Corten A and B?

Chemical Composition: Corten B has a slightly different chemical composition compared to Corten A. It contains small amounts of copper, chromium, nickel, and phosphorus, similar to Corten A. However, Corten B has a higher phosphorus content.

What is the equivalent to Corten b steel?

S355J2W

S355J2W is equivalent to CorTen B steel plate.

Want to know more diffrence about Corten A and B,click here!

 

What is the chemical composition of corten a steel?

Corten A is a weather-resistant steel made by mixing copper, chromium, and nickel. Additionally, Corten A has phosphorus added, which makes the substance ideal for gas flue applications and for aesthetically pleasing facias.

 

Is Corten a mild steel?

The defining feature of Corten steel is its alloying elements - copper, chromium, nickel, and phosphorus. These elements aid in forming a protective layer on the surface of the steel when exposed to the atmosphere, granting it a superior resistance to corrosion. This is a property mild steel lacks.

 

Can corten steel be cut?

Corten steel cuts much the same as mild steel, but it is a bit tougher because of the copper and chromium mixed in. If you are set up with the right gear, it is straightforward. I usually grab an angle grinder with a good cut-off wheel for sheet metal or a plasma cutter if I want a really clean edge.

 

Can corten steel hold water?

Our Corten steel ponds are coated with a polyurea spray on the inside that prevents the water from turning a rusty, orange colour during the weathering process, and it makes the pond hold its watertight spec for much longer.

 
weathering steel sheet Products image

 

CortenA weathering steel

 

 
GNEE group team photo

 

China corten metal sheet Suppliers

 

 
GNEE group customer visit

 

China corten steel Manufacturers

 

 
GNEE Group participates in foreign steel exhibitions

 

China weathering plate Distributors

We have excellent after-sales service. If you have any questions about CortenA Weathering Steel, you can contact us and we will reply to you within two hours.

 

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