What's the meaning of the "200HV" of the gasket material? Is that the hardness level? What materials are usually chosen? Know predecessors please advice, younger brother is not very grateful!!!
Surface Vivtorinox hardness, general requirements not less than the number of commonly used non-ferrous metals, such as bronze, tin bronze, etc.
Should be less than 200HV, which is gasket, should consider the tightness, high hardness of the seal is not good!
Washer / gasket material bar indicates that 200HV is the material mechanical performance grade for steel 200HV.Example: standard series, nominal size d=8mm, performance grade 200HV, without surface treatment of flat washers: washers GB97.1 - 858 200HVA part between a connector and a nut. A flat metal ring is generally used to protect the surface of the connecting piece from the nut.
