Common Metallic Material Options • Alloy 718 Common Plating Options • Silver Note: Load and spring back figures are based on Alloy 718 in the heat-treated condition. Actual performance should be accordingly considered due to various working conditions. Tolerances on groove depth, plating, diametrical clearance, and differences in material batches can create differences of up to 100% for the cross section less than 3mm, down to 50% for the bigger cross section. Groove Dimension Groove Finish Recommendation Groove finish is a critical factor for metal seal. Depend on different medium, Sonkit recommend the following groove surface roughness Typical Applications ■ Gas & steam turbines -Valves -5wivels • Turbochargers Test Report