Tag Archives: High Temperature

Q: I don’t see 316 on your sight but would you know if 316H material can be useed at 1500F? A: I believe 316H will survive 1500F without significant oxidation. However, please be aware, at that temperature, the material will lose a significant % of its strength. The material already … Continue reading

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Q:  I’m designing laboratory equipment that will be utilized at 325-400F and I need screws that have immunity to organics and low concentrations of acids, as well be FDA approved. Would that be a ceramic? A:  You probably don’t want a ceramic screw. Though they are corrosion resistant and offer … Continue reading

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Q: My customer is having an issue with his stainless steel fastener bending. They are being used in a high-heat application running at approximately 1600F. Is this normal? Any ideas? A: This is definitely expected at these temperatures. If temperature and strength are you main focus, I would suggest either … Continue reading

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Q: I am looking for a suitable fastener for use in a high heat furnace that is running at 2000F but the actual hearth wear flames go up to 3000F. The furnace is not under vacuum and has a normal atmosphere. We are finding that the 304 bolts are failing … Continue reading

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Q: I’m running a steam surface condenser which is installed on a steam turbine in a thermal power station. I’m using sea water that could be contaminated with chemical pollutants cooling water side of the condenser. Any ideas on a good fastener for the tubes and water boxes? A: Duplex 2205 … Continue reading

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inconel-monel-chart-copyThey rhyme, are both used in extreme environments, and are both nickel metal alloys, but Monel and Inconel are actually very different. But how? Let’s start with basic chemistry. Monel is a nickel-copper alloy and Inconel is a nickel-chromium alloy. So what does that mean for your extreme application? We … Continue reading

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Q: What is the highest temperature I could use Inconel 718 bolts? A: Inconel 718 fasteners could be used reliably up to about 1300F.  Because Inconel 718 is  heat treated or age hardened at 1325F, going beyond 1300F will significantly affect its strength properties. Furthermore, its strength may not fully return. … Continue reading

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NASA has been designing rockets and manned space ships for over 50 years, but nothing like the innovation needed to build a light-speed, fighter spacecraft. At Extreme Bolt, we supply the aviation industry with a diversity of fasteners made from extreme materials. Though Star Wars is a fictitious story, it … Continue reading

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Vacuum furnaces offer engineers a unique processing environment: high temperatures, controlled atmospheres, and rapid cooling. This low contamination environment is perfect for brazing, sintering, and heat treatment. Due to the constant extreme temperatures (typically 1,100–1,500°C), choosing the right fastener material can be a challenge. This brief paper will give you an overview on what high … Continue reading

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Q: Polyimide / Vespel fasteners and their high temperature capabilities A:   This client is developing a new oven application and was interested in Polyimide fasteners and their high temperature capabilities. In particular they needed:

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