Standard Metal Strip materials are:SS304 (1.4301) SS316 (1.4401) SS316L (1.4404)SS321 (1.4541) SS316-Ti (1.4571 ) Other Special materials for Metal Strip InConel600 InConel625 InConelX750Monel 400 Nickel 200TitaniumIncoloy800 Incoloy825 The basic element of every Gasket is the Wound Core.The V-shape metal strip is spirally wound with the soft-material filler. Others types of Spiral Wound Gaskets are: For Raise Face & Flat Face Flanges Inner and Outer Solid Metal Rings, prevents turbulencesandprotects the flanges from erosion.Also, protects the inner windings of the gasket element fromhigh temperatures. For Raise Face and Flat Face Flanges Solid metal Outer Ring with PTFE Inner Ring.PTFE Inner Ring acts as an additional gasket and protects the inner windings of the gasket elements from the media fluid. For Raise Face and Flat Face Flanges Solid Metal Inner Ring with Graphite Facing for highpressure, high temperatures