Patent ID: 9618121
Date: 2017-04-11
CPC Classifications: F16J

Claim:
1. A method of making an embossed metal gasket, comprising the steps of: cold rolling a sheet of an iron-nickel-chromium alloy to develop a deformed microstructure, a tensile strength of at least 1000 MPa at room temperature, and an elongation of at least 5% at room temperature; the iron-nickel-chromium alloy comprising, by weight: 24-55% Ni; 14-21% Cr; 1-3.3% Mo; 0-0.15% Cu; 0-1% Si; 0-2% Mn; 0.65-2.3% Ti; 0-0.8% Al; 0-0.5% V; 0.001-0.01% B; 0-1.0% Co; 4.75-5.5% of the sum of Nb or Ta; 0-0.08% C; 0-0.015% S; 0-0.015% P; and the balance substantially Fe; and forming a gasket from the cold rolled sheet, the step of forming the gasket including forming a least one embossed sealing bead.