Stainless steel is a beautiful, shiny metal that does not rust, which is why people love it. However, it can be tricky to weld, especially with higher gauge material. Though if you follow a few of the following tips, you can be successful at it.
First, you want to thoroughly prepare your weld surfaces with a stainless steel wire brush and then clean it with acetone or denatured alcohol to make sure it is completely free of any debris. Then, the main thing to keep in mind when welding is the heat. Stainless steel gets hot very fast so you should weld at the lowest amperage necessary to prevent warpage. For example, if you are welding 16-gauge material, set your machine between 40 and 60 amps. Start with cool settings and then add heat slowly if you need to for stronger welds and better penetration. Tack weld your piece in several places far apart then fill in later, which will also reduce warping. You can also weld in short bursts of three to four seconds to avoid warping as well. Do not weld for too long a period of time; you want to stop and allow your material to cool off, then weld again. Stainless is also stronger than most metals, so it can be fused together without much rod. However, as with anything, the best way to become proficient in welding stainless steel is to put in the hours and practice!!
We offer a Stainless Steel class at our shop and shop time is always available to practice.
Stay tuned for tips on welding brass and aluminum!
