Welding vs. Bolting: Which One Should You Choose?

August 14th, 2018



When it comes to building steel structures, it is highly essential that you know the options that you have. Unlike when you are working with wood or cement, there are varying types of nails as well as concrete materials that could be used to hold them together, in place. With steel, there are different options too – welding and bolting. Perhaps the only problem is how you identify which one of these two should be used with the kind of structure you are working on.


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Both come with advantages and disadvantages, depending, really, on what you aim to use them for. And because steel structures have become in demand over the years because of the sturdy construction that it provides, it has become the popular choice. Also, it is much sought after considering that they last for many years with very little maintenance required.


Welding, undoubtedly, is one of the leading options when it comes to putting steel together. Although bolts are made available every time, welding has become the favored option because it rests in the idea that viable steel connectors are required in a structure. In particular, here is a list of the benefits that come with welding over bolting.



  • Welding provides a low-stress concentration on the area where the steel connections are made. Simply put, the welding does not give any additional stress on the area other than the stress that the structure is already placed under. Compared to bolts where the pressure is put on every bolt, welding helps even out the pressure and stress that allows the connection of steel to last for a long time.

  • Welding provides the joints more strength than there is and that makes all the difference. Because welding is a process that puts two steel materials as one, it practically creates a stronger connection.

  • When you are building a steel structure that will be exposed to vibration as well as fatigue load (low or high impact), you should consider using welded parts together instead of bolts. Both may be able to help provide a unified structure, but the other one will be able to withstand the pressure.

  • The power of welded parts lies in the combination themselves. The absence of holes that need to be filled if it were a bolt, the section will remain steadfast even under pressure.


Bolting or welding? The choice is yours. Maybe it is best to ask steel fabricators what they think. Consulting the experts will help you make a sound decision to ensure the utmost safety of the structure.


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