Additional Capabilities
Capabilties to serve your industries niche requirements
Extreme Bolt & Fastener, is not just a bolt company. We go beyond the basics with our additional offerings from cleaning and cleanroom packaging for high purity laboratory processes to coatings for the most corrosive applications. These are just a glimpse at some of the additional capabilities we can offer.
Knowledge
Our engineers have developed several resources to help you choose the right material fastener or flange for your application.
- Blog
- Technical Questions
- Material Selector Tool
- Material High Strength Chart
- Material High Temperature Chart
- Torque Specifications
- Galvanic Corrosion Chart
- Flange Bolting Chart
- Flange Dimensions Chart
Frequently Asked Questions
FAQ's
Our frequently asked questions is a collection of some of the more common or interesting questiosn we receive. If need more information, please feel free to contact our materials experts.
Catagories: Specialty Metals, Engineered Polymers, Advanced Ceramics
Q. Can dissimilar (also called galvanic) corrosion occurs between Inconel bolts and regular carbon steel?
A. Anytime you have dissimilar materials you have the potential for galvanic corrosion. For this to happen the materials need to be wet or in some kind of solution. If they are dry its greatly reduced although humidity could be enough to cause the materials to galvanically couple.
Also whenever you have dissimilar materials you always want the part with less mass, in the case the bolts, to be the more noble alloy. Because the carbon steel plate has much more mass than the screw its affects will be greatly minimized. This is important as you dont want to corrode the threads of the bolts.
Q. We are developing a new oven. We are interested in Polyimide fasteners and their high temperature capabilities. In particular we need:
Usability to 300°C
Non-conductive of heat or electric currents
Reasonable strength
A. Polyimide fastener has good thermal and electrical isolator for your application. It is heat resistant to 300°C (572°F) continuous use and 500°C (932°F) intermittent. I also has a 3.55 dielectric constant at 1MHz. The only drawback for using polyimide is that it is an expensive option.
Here is a great video by DuPont on the heat resistance of polyimide compared to other polymers: http://www.dupont.com/
For a higher performance option, we suggest using a ceramic fastener. Ceramics fasteners offer a higher dielectric usage and thermal resistance (Alumina to 3000°F (1650°C) and Zirconia to 2100°C (3800°F) giving you a little more room to operate in your application.
Q. We are developing a new oven. We are interested in Polyimide fasteners and their high temperature capabilities. In particular we need:
Usability to 300°C
Non-conductive of heat or electric currents
Reasonable strength
A. Polyimide fastener has good thermal and electrical isolator for your application. It is heat resistant to 300°C (572°F) continuous use and 500°C (932°F) intermittent. I also has a 3.55 dielectric constant at 1MHz. The only drawback for using polyimide is that it is an expensive option.
Here is a great video by DuPont on the heat resistance of polyimide compared to other polymers: http://www.dupont.com/
For a higher performance option, we suggest using a ceramic fastener. Ceramics fasteners offer a higher dielectric usage and thermal resistance (Alumina to 3000°F (1650°C) and Zirconia to 2100°C (3800°F) giving you a little more room to operate in your application.