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How to Weld Carbon Steel to Stainless Steel

How to Weld Carbon Steel to Stainless Steel

If you’re a metalworker, you likely understand the importance of knowing how to weld carbon steel to stainless steel. This is an essential skill for many welding applications; however, it can be difficult since these two metals have different melting points. This blog post will provide step-by-step instructions on how to weld together carbon steel and stainless steel.

Preparation is Key

As with any welding job, preparation is key when welding carbon steel to stainless steel. First and foremost, your welding area should be clean and free of debris or dust that could contaminate your welds. The next step is to ensure that both metals are properly grounded and free from rust or oxidation. Once that is done, you need to ensure that each piece has been aligned correctly so that when the two pieces come together during the welding process, they fit snugly against each other without any gaps.

Proper Materials & Equipment

The right materials and equipment are also essential before beginning your welding project. You will need a flux core wire specifically designed for welding stainless steel and a TIG torch with argon gas and tungsten electrodes. Additionally, it’s important to use a grinding wheel that is made of aluminum oxide or silicon carbide – this will help prevent contamination of your welds due to other types of grinding wheels, which may contain impurities such as iron particles or oxides that could weaken your final product. Finally, ensure you have some protective gear such as safety glasses, gloves, and an apron in case any sparks fly!

Welding Process

Once all of these steps have been taken care of, you can now begin the actual welding process! Ensure your TIG torch has been set up correctly with argon gas flowing through it at about 60 PSI (pounds per square inch). Start by striking an arc at one end of your metal pieces – this should create a spark which will then melt the flux core wire in order for it to stick onto both surfaces simultaneously. As you move along the length of the join line while maintaining an arc distance of 1/8 inch away from either surface at all times – keep moving until you reach the other end, where you can then stop the arc before removing your torch from the area completely!


Welding carbon steel to stainless steel requires patience and precision due to their different melting points; however, with proper preparation and by following our step-by-step instructions above – anyone with basic metalworking skills can successfully complete this task! So if you ever need help joining two metal parts together using this technique – remember that experience matters – but so does having quality materials & equipment on hand! With those two things combined – even novice welders can achieve great results!

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