Different metals and alloys are selected for various types of construction, manufacturing and fabricating jobs for a range of reasons. This is true for both structural materials, components and fastener options, including weld studs for both CD and drawn arc stud welding processes.
The choice of the right type of stud weld is not as simple as just comparing costs or looking at the specific dimensions and sizes of various options. It is about choosing the material and the stud weld design that is the best suited to the specific application.
For many different types of jobs, stainless steel weld studs meet the criteria for use in the specific environment, for having the correct physical properties and for offering the strength and long-life cycle that is required. It is often superior to mild steel or aluminum, the two other common options.
What to Consider
As a general statement, stainless steel weld studs are recognized for their ability to withstand corrosive environments. This includes use in a marine as well as land-based construction even if there may be a significant risk of exposure to water or humidity. Stainless steel is more corrosion resistant than mild steel, which is an essential factor to consider.
In addition to corrosion resistance, stainless steel weld studs are very high strength. With minor amounts of carbon in the alloying materials, they are very resistant to intergranular corrosion, which is what results in weakening of any type of stainless steel fastener or structural component over time.
There is one other reason why there is an advantage to using stainless steel over mild steel or aluminum weld studs on some applications. This is an alloy that can withstand extreme temperatures, both low and high, which is often a consideration when combinations of heat and stress may be a factor.
