The Three Most Common Methods for Welding Stainless Steel

07 February 2020

Welding stainless steel has a variety of methods in order to custom fit the finished product into different purposes. These methods normally differ in thickness and material finish. Choosing the right method for welding stainless steel really depends on what qualities you are looking for. You have to evaluate the materials, capabilities, and finishing style you want for each project to determine which welding method will be most effective for the task. Below are the three most common methods for welding stainless steel.

Tungsten Inert Gas (TIG) Welding

Tungsten inert gas (TIG) welding is the most commonly used stainless steel welding process because it offers high quality, versatility and longevity. This welding process creates a low heat input, which makes it perfect for thin material. The argon gas is often mixed with other gases, depending on the needs of the specific project, including helium, hydrogen and nitrogen. To prevent oxidation and increase resistance to corrosion, a single-sided welding process can be used creating inert backing gas protection between the interior and exterior welds.

Resistance or Spot Welding

Resistance or “spot” welding, as it is often called, is one of the most economical types of welding. The resistance welding (RW) equipment is incredibly versatile, which means it can be used on both small and large projects. RW uses an electrical current to heat frayed metal edges and seal them together. This type of welding is exceptionally productive on metal with a low melting point because it can be tailored to prevent distortion of the metal.

Metal Inert Gas (MIG) Welding

Metal Inert Gas (MIG) welding is a semi-automatic process that when done correctly offers a strong joining of two pieces of stainless steel. This process uses an argon rich shielding gas and a solid wire electrode. MIG welding is popular because it allows the welder to utilize a pulsed current supply, which can make it easier to weld those tough-to-reach spots on complex stainless steel projects. Other gases mixtures, including those with helium, oxygen and carbon dioxide, are often used to stabilize the arc and improve the quality of the weld.

Know more about the three most common methods for welding stainless steel from Sureweld Engineering. If you are looking for certified coded welder and supervisors for your stainless steel needs, we got you covered. We offer a 24/7 break down in mechanical and maintenance support. We also promise to service your business any time of the day or night. We are located in Hastings, Victoria and we can guarantee that you obtain prompt and highly efficient professional onsite repair services for your trucks or heavy machinery, thus reducing the possibility of weld defects.