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We advise only welding A606-4 or A588 together. These shapes are typically far more a Route Trucks Servicing all of the U.S.A. AND Canada. If you have a typical 30 SQ roof that equates to $ 1,000 to $ 1,500 additional for your project. This low amount of carbon allows it to remain ductile and tough. Metal Roofing & Siding Panels. Additionally, the copper along with manganese, silicon and nickel content in A606-4 creates that protective layer as the material continues to patina. There are two main grades of Corten steel; Corten A and Corten B. Yes, the same alloys are used in all weathering steel products when they are produced at the mill. We can offer the equivalent and it is produced under ASTM A847 (American Society Testing Materials). Pre-Painted Metal That Looks Orange/Brown Rusted, Painted To Look Like Galvanized With Orange Or White Rust Spots, Pre-Painted Metal That Looks Patina'd Copper, Pre-Painted Metal That Looks Weathered Gray, Dark Colored Matte Finishes & Dark Bronzes, Pre-Painted Metal That Looks Like Patina’d Copper, Pre-Painted Metal That Looks Like Blackened Steel, Matte Finishes, Blacks, Bronzes, and Grays. Our selection of color options and finishes is likely the largest in the industry. It is recommended to use a high temperature underlayment. The market term ‘cold rolled’ refers to all steel that is formed when it’s cold (at room temperature). Please note, there isn't a specific welding wire for ASTM A847 HSS tube and pipe. Yes, you can weld ASTM A847 HSS Tube or Pipe. WSMR is a manufacturer of metal roofing, wall panels, and metal siding. Subscribe to receive updates from Western States Metal Roofing! It amazes me that we sell a fairly equal amount of both products. Weathering steel is a group of steel alloys developed to obviate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years. Corten roofing will cost an additional thirty to fifty cents per square foot when compared to bare cold rolled roofing. Its unique look and naturally oxidizing finish make it especially desirable for many architectural projects. Since most individuals do not have the proper equipment to load/unload/process coils-we typically recommend flat sheets. If the answer is " No " or " I don't know " it's almost certainly NOT COR-TEN®. Coil is used typically to roll form into panels. I would personally only use A606-4 on my roof. Western States Metal Roofing will always provide a mill certification at time of shipment when required. Keep in mind that both products do NOT have a warranty. However, when you look at the FINISHED cost of your roof including underlayment, fasteners, trim, and labor it actually is a very modest increase in cost. There are many different alloying elements used, but the key three elements in weathering steel are nickel, copper, and chromium. Standard carbon steel will rust but it will not have the beautiful colors that come from A606-4. If you're not familiar, here's what makes this material special: It has a beautiful and natural… That is really the heart of this question. Bare steel tends to rust a little more orange and Corten tends to rust to a cinnamon brown color. If somebody tells you that they are supplying you COR-TEN® they are almost certainly unaware of their own product. Does it make sense to spend 20K on a roof and get approximately half of the lifespan in order to save a thousand bucks ? A606-4 steel is available in metal roofing/siding panels, standing seam panels, flat sheets, and coil form. When someone needs COR-TEN® they are normally referring to A606 Type 4 or A588. Stages of Weathering Click here to view larger image. There are a couple of ways to make sure you received “the real” weathering steel aka Corten. We do not have a specific recommendation on clear coatings. If the price looks too good than there is likely a reason why. Corten will have a longer life-span than bare cold rolled steel. Typical tensile strength of based metal (weathering steel) is 68-78 KSI. Customers often ask us about the differences between hot rolled steel and cold rolled steel.There are some fundamental differences between these two types of metal.The differences between hot rolled steel and cold rolled steel relates to the way these metals are processed at the mill, and not the product specification or grade. At first glance this may seem like a lot of extra money. Download all of Our Catalogs Click on Image Below . It can also be used in your landscape and architectural applications where no future maintenance of material is required. There are multiple factors when it comes to getting the orange-brown oxide finish. Flat sheets are used in various applications, including landscaping, architectural buildings and multiple other applications. Once the A606-4 oxidizes with the weld it will blend together in a nice orange-brown oxide finish. It depends on the environment and the way in which it was installed. We stock A606-4 in flat sheets, coil, and panels. Some modular corten steel products (like fire pits) may already … Carbon steel in the general use of the term would mean standard structural steel shapes like channel, angle, square, etc. ©2013 - 2020 Western States Metal Roofing, all rights reserved. Hot-rolled steel is weaker than cold-rolled, but it’s also cheaper since … It is my personal opinion that the aesthetics of both are similar enough that it should not be much of a factor when making this choice. Weathering steels, such as ASTM A588, A242, A606 and COR-TEN® exhibit superior corrosion resistance over regular carbon steel as a result of the development of a protective oxide film on the metals surface which slows down further corrosion. Why? Typical applications for ASTM A847 HSS tube are bridges, hand rails, and any other applications where high-strength low-alloy (HSLA) and superior corrosion resistance steel is required. At first glance this may seem like a lot of extra money. If you want COR-TEN® this will be the best available option. Bare Cold Rolled is widely manufactured for a variety of different purposes including metal roofing … We have colors and finishes that nobody else has with nearly 100 different colors in stock. Both A588 and A606-4 are weathering steel specifications and have similar chemical compositions that meet the ASTM G101 of 6.0 or higher on the atmospheric corrosion-resistance index. We advise using the above flux combinations and using your local welding supply company for welding materials. If you add a clear coat to the A606-4/A588 material it will likely change the surface color due to the additives in your clear coat. Since the weld is not comprised of weathering steel, the weld will rust over time and the patina from the weathering steel tube will blend together nicely. Since the deposit of the welded area is not the same material as A606-4, the weld will take a bit longer to rust. If you want a product that is warrantable than we recommend using Painted Rusted Roofing. What is available is steel in an A606-4 or an A588 finish. It can be shipped anywhere in the country very inexpensively on one of our route trucks. Welding A606-4 or A588 to other metals can lead to a dissimilar metal reaction. Corten will last longer and would be more desirable in harsh climates. The price depends on the job location, length and weight of panels. They both will arrive with a dull gray finish. We recommend you check with your local paint supplier and get their recommendation as they are the coating experts. ASTM A847-HSS-Hollow Structural Steel is a cold-formed high strength-low alloy steel that is welded and shaped into square tube, rectangular tube and pipe. Dual Mill Certifications of ASTM A606-4 and ASTM A588 are provided for thicknesses 14 Gauge and thicker. A588 is a high strength low alloy plate used for structural applications such as buildings and bridges. With 5% copper in the alloy mix, the copper immediately comes to the top as the patina process begins. Make sure you are getting what you paid for. Standard hot roll will rust, just not the same as weathering steel. As a low carbon steel, weathering steel typically has less than 0.3% carbon by weight. The other is the visual test. This alloy mix creates a beautiful rust (patina) when exposed to the elements of nature. will cost an additional thirty to fifty cents per square foot when compared to. Pre-Painted Metal That Looks Orange/Brown Rusted, Painted To Look Like Galvanized With Orange Or White Rust Spots, Pre-Painted Metal That Looks Patina'd Copper, Pre-Painted Metal That Looks Weathered Gray, Dark Colored Matte Finishes & Dark Bronzes, Pre-Painted Metal That Looks Like Patina’d Copper, Pre-Painted Metal That Looks Like Blackened Steel, Matte Finishes, Blacks, Bronzes, and Grays. No, COR-TEN® is not available. Corten contains copper, chromium, manganese, and nickel which makes this material more expensive. If you need it to develop faster there are some natural solutions that when applied over and over will assist you in developing that beautiful patina. Using a heavier gauge steel is the most important thing you can do to increase the longevity of Corten steel. The orange-brown finished color in A606-4 comes mainly from the copper content. We get a lot of questions about Cor-Ten Steel (a/k/a weathering steel plate or high-strength corrosion resistant plate), mostly from our landscape designers and contractor clients, on how to use it, what's the difference between this and raw steel. However, I would not hesitate to use bare steel on a wall panel or fencing panel. The pipe can be used in fence applications, artistic structures and many other applications where you desire strength in the steel, longevity and visually pleasing. One is to get a mill certification from your supplier at the time of shipment. Bare Cold rolled steel is used as a less expensive option to A606 Type 4 ( Commonly referred to as Corten ). Any Size Order. You can weld weathering steel using the same flux combinations so that the tensile strength of the deposited weld metal (welding rod or wire) is consistent with the tensile strength of the base metal (weathering steel). This group of alloys is very different than standard steel and, when combined, these alloys exhibit superior corrosion resistance over regular carbon steel. Corten vs Bare Steel: Which is Better for My Rusted Roof? Contact an expert in underlayment for further details. Both products have a similar appearance.

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