All of our gaskets are made from high-purity, electronic grade oxygen-free copper alloy 101 (99.99% pure), 1/4-hard temper, Rockwell 63-83 hardness, ASTM F 68-77, ASTM B 152-79.
Gaskets are punched dry, but the dyes are wiped with a vanishing cutting fluid which comes in contact with the gasket. It evaporates, leaving no residue. Nicks or scratches shall not exceed .0005" deep, or .003" wide. Burrs shall not exceed .002".
We also offer silver-plated copper gaskets designed to prevent oxidation at high temperatures.
* Asterisk items have a larger ID for special requirements.
Due to the increased global demand of copper & current shipping shortage situation the prices of Copper Gaskets for the foreseeable future will be volatile and could change on a daily basis. We will do our best to maintain pricing where we can, but pricing will depend on a multitude of factors which are unfortunately beyond our control.
We are currently not selling 2.75 Conflat Gaskets (Standard or Silver Plated, blank or normal) due to supply issues.