Q: We are looking for some socket head cap screws that would be manufactured from a Monel bolt for oxygen environment – What material would you recommend?
A: Monel 400 would be a great choice for oxygen compatibility since it has very low spark initiation potential. The ignition of alloys and metals was determined by promoted ignition methods in oxygen at 7500 psi. Monel 400, Inconel 600, Brass, and Nickel all were found to have the highest resistance to ignition and combustion.