Tag: Alloy 330 fasteners for oxidation resistance

Oxidation Resistant A286 and Alloy 330 Bolt

Q: I was reading that high temperatures will accelerate the rusting of metal bolts. Is there a material that can prevent this. I’m using the screws at 1300F intermittently.
A: What you are looking for is an oxidation resistant bolt. When a metal oxidizes it is attacked by oxygen which accelerates at high temperatures. Depending on the strength requirements of your application but Alloy 330 bolts and A286 bolts are ideal for preventing oxidation, hence rust at high temperatures. They also work well for 1300F of intermittent heat.

Oxidation Resistance for Heat Treating

Q: I am interested in 1/4″ x 2 1/2′ bolts and nuts that can resist oxidation up to 2000F. The application they are needed for would be to hold together a steel frame meant to hold tool steel in position preventing distortion during the heat treating process. I would like a recommendation for the best alloy to use in this application.

A: Probably the best alloy to consider in an application like this are Alloy 330 fasteners. This alloy is designed for its high temperature oxidation resistance and stability. Alloy 330 bolts are often used in heat treating applications and would be worth considering.