What is one key advantage of using CO2 as a shielding gas?

Using CO2 as a shielding gas is particularly advantageous due to its lower cost compared to other gases. This economical benefit makes it a popular choice for many welding applications, especially in a commercial setting where cost efficiency is crucial. CO2 is usually more affordable than argon or a mixture of argon and CO2, allowing for greater cost savings on materials without significantly compromising the quality of the welding process.

In addition to cost savings, CO2 provides effective shielding properties that help produce a stable arc and good penetration during welding. However, it is also important to note factors like fume generation and spatter, which may be more pronounced with CO2 compared to other shielding gases. Understanding these traits allows welders to choose the most suitable gas for their specific applications, balancing economic considerations with quality outcomes.