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Marine Valve Seat
The material properties to be considered when selecting a soft seat are: 1) fluid compatibility, including expansion, hardness loss, permeability, degradation; 2) hardness; 3) permanent deformation; 4) degree of recovery after load elimination; 5) pull-up Compressive strength; 6) deformation before rupture; 7) modulus of elasticity.
Raw material for Valve Seat amolst Cr-Mo serives High alloy structural steel(42CrMo), Si-Cr series High alloy valve steel( 4Cr10Si2Mo), Ni-Cr series Powder alloy steel (CrNi40/60).