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Can you Weld Corten Steel to Mild Steel?

Can you weld Corten Steel to Mild Steel

Welding is a great way to join two pieces of metal together. But before you get started, it’s important to understand the specifics of each type of metal and the best welding techniques for them. In particular, corten steel and mild steel are often welded together since they both have similar qualities. This blog post will discuss the basics of welding corten steel to mild steel and why this is a great option for many welding projects.

Welding Corten Steel to Mild Steel

Corten steel is also known as “weathering” or “corrosion-resistant” steel. It has a high resistance to corrosion due to its chemical composition, which contains copper, chromium, nickel, and other metals. It also has a higher tensile strength than mild steel, which makes it ideal for projects that require durability and strength, such as industrial equipment and buildings.

The most common method used when welding corten steel to mild steel is gas metal arc welding (GMAW). GMAW is an electric arc welding process that uses non-consumable tungsten electrodes. This process provides an efficient and cost-effective way of joining metals with different physical properties, such as hardness and conductivity. When welding corten steel to mild steel, you should use shielding gas with a mixture of 90% argon and 10% carbon dioxide or 75% argon/25% CO2. This will help protect the weld from oxidation during the cooling process after welding. Additionally, it’s important to keep in mind that heat input should be minimized when joining these two materials since excess heat can cause cracking in the base material (mild steel).

When selecting filler material for your project, it’s important to choose one that will match the mechanical properties of both materials being joined together. A 309 or 312 stainless filler rod is usually recommended because it has good corrosion resistance in addition to having similar tensile strength as corten steel. Another option would be using an AWS E8018-B2 electrode because this type of electrode provides excellent impact toughness while still providing good corrosion resistance in outdoor environments where your project may be exposed to rain or moisture.

Conclusion:

Welding corten steel to mild steel can be done effectively using GMAW with shielding gas mixtures containing argon/carbon dioxide or argon/oxygen blends. When choosing filler material for your project, opt for one that will match the mechanical properties of both materials, such as 309 or 312 stainless filler rods or AWS E8018-B2 electrodes, depending on your needs. Remember, though, that heat input should always be minimized when joining these two materials since excess heat can cause cracking in the base material (mild steel). With a careful selection of materials and proper technique, you’re sure to have success when welding corten steel to mild steel!

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