Using Stainless Steel for Your Welding Project

Stainless steel has quickly grown in popularity for a variety of furnishings, appliances, and fixtures for both home and business. For some people, it may be a style preference, but stainless steel has benefits far beyond being attractive. Being that it is an iron-based alloy which contains varying amounts of chromium, stainless steel boasts a sturdy rust-proof reliability. The amount of chromium in stainless steel can range from 11% to 30% with each variation possessing slightly different chemical attributes that contribute to its performance.

However, welding with stainless steel is challenging. Before you take on a project with stainless steel, be sure to consider the pros and cons of this material and best practices of stainless steel welding so that you are informed and well-prepared for the job.

Pros of Stainless Steel Welding

1. Corrosion Resistant - As previously mentioned, stainless steel is highly corrosion resistant due to its chromium properties, which forms a passive oxide layer on its surface. This layer is a protective barrier, preventing the underlying steel from reacting with harmful elements such as chemicals, water, and salts. Stainless steel can even withstand acid and alkaline solutions, and even marine environments.
2. Durability - Because stainless steel is very strong, welding it allows you to form strong joints between the components for an exceptionally durable hold. Welded stainless steel structures are able to withstand very heavy loads without bowing or collapsing, which makes them an outstanding option for projects that require extreme durability.
3. Heat and Fire Resistant - Stainless steel is not quick to deform or weaken under extreme temperatures. Welding with stainless steel allows you to create exceptionally strong components that are suitable for high heat and even fiery environments, such as those found in the power generation and aerospace industries.

Cons of Stainless Steel Welding

1. Cost - Stainless steel has a higher material cost than other metals such as carbon steel. The higher material cost paired with the need for specialized skills and equipment can add up to a higher upfront investment. However, the long-term benefits including durability and corrosion resistance often make stainless steel an excellent investment. 
2. Contamination Risk - Unfortunately, stainless steel has a risk of contamination during the welding process, which carries a margin of corrosion risk as well as compromised mechanical properties. Proper welding procedures include thorough cleaning and using proper consumables will help you keep your stainless steel project free of contamination.
3. Specialized Skills and Equipment - Welding with stainless steel is unique, so it calls for specific equipment and expertise. The unique properties of stainless steel call for precise control parameters, such as shielding gas, current, and interpass temperature. The lower thermal expansion coefficient demands extremely careful joint preparation and fit-up to prevent misalignment or gaps, so hiring an experienced welder will protect the investment you are making.

The Bottom Line

All things considered, using welded stainless steel components in your project can be an excellent investment. M&M Welding are experts in stainless steel welding and can help your stainless steel projects come to life!

M&M Welding is your one-stop shop for custom fabrication with multiple materials, including stainless steel, mobile welding fabrication, truck body fabrication as well as a supplier of wholesale steel and aluminum products if you want to tackle your own project. Get in touch with us today for a free estimate!