March 21 2020 0Comment
weldable metal

Weldable Metal: To Weld Or Not To Weld

When it comes to the complicated process of welding, selecting the right metal is absolutely crucial. Because there are several factors that can cause failure, choosing an easily weldable metal will heighten your chances of success. Good metals, like low carbon mild steel and aluminum, don’t require many pre-weld and post-weld operations, thus simplifying the process. 

See below for more about the best types of metal for welding. 

Low carbon mild steel

One of the most weldable metals is low carbon mild steel, and this is for multiple reasons. Because this metal is used in so many applications, scientists have developed various ways over the years to weld it. It’s also more ductile than other steel types, due to its low amounts of carbon. 

Stainless steel

Stainless steel is easy to weld with the right knowledge and technique. Known for corrosion resistance and despite a complex chemical composition, many stainless steels are weldable. The three major types of stainless steel are ferritic, austenitic, and martensitic; and knowing which grade to use is crucial.

Intergranular corrosion should be considered when welding stainless steel. One way to prevent this is to use a grade like Grade 321 that’s stabilized with titanium or niobium. You can also use low carbon stainless steels. 


Like stainless steel, with the appropriate technique and expertise, aluminum isn’t difficult to weld. When welding aluminum, it’s important to ensure that the correct grade is chosen. Certain grades, like in the 1XXX series are welded easily, but grades in the 2XXX series aren’t usually weldable. 

It’s also important to take into account the material’s strength when welding aluminum. Certain aluminum alloys, like T6 designation, have been artificially aged and will be weak when welded. 

More types of weldable metals

When branching out from the above-listed metals, the welding process tends to get a bit more difficult. Metals like titanium usually mean you need extra equipment or shielding, and high carbon steels require heating to prevent cracks. It’s best to do research into the metals in order to select the right one based on knowledge and resources.

This is what makes choosing a professional to handle your welding project so important. Getting access to that knowledge and understanding can help you make better decisions that impact your weld for many years, to come.

Visit Megstar Industries, today, and find out about how our expert welding services can help you.


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