Top Sealing Graphite Yarn with Inconel 600 ideal for superheated and saturated steam, hydrocarbons and chemicals valves. It Incorporated with a sacrificial metal corrosion inhibitor to protect the shaft from galvanic corrosion. Graphite Yarn with Inconel 600 individually encapsulated by an Inconel® wire jacket that allows the yarn to handle higher pressure than standard expanded graphite yarns. Temperature resistance 650°C.