Force-type metal gasket seals common metal flat pads, wave pad, gaskets, ring pads (including the octagonal pads, two oval pads). The gasket manufacturing complex, especially for large diameter gasket (such as annular pad) must obtain rolling, welding, testing, turning over at the production, precision, and the required surface roughness is relatively higher, so costs are high, generally for high temperature, high pressure and non-metallic pads and metal pads are not competent package under harsh conditions.
Metal gasket according to the medium temperature and physical property, usually use aluminum, copper, mild steel, iron, stainless steel, titanium, monel and other materials. For example, the ammonia plant commonly used in aluminum and mild steel, while the urea plant in the multi-purpose 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti; high temperature can be used 1Cr18Ni9Ti, Monel alloy, low temperature 0Cr18Ni9 more appropriate.
