Patent ID: 6983743

Claim:
A metered-dose inhaler having a metal cannister to hold drug and non-CFC propellant gas, wherein the walls of the cannister are formed by an alloy comprising the following elements in the amounts indicated: Iron of about 40.0 to about 53.0%, Nickel of about 23.0 to about 28.0%, Chromium of about 19.0 to about 23.0%, Molybdenum of about 4.0 to about 5.0%, Manganese of about 0.0 to about 2.0%, Copper of about 1.0 to about 2.0%, Silicon of about 0.0 to about 1.0%, Phosphorous of about 0.0 to about 0.045%, Sulfur of about 0.0 to about 0.035% and Carbon of about 0.0 to about 0.020%; with the proviso that the alloy does not contain aluminum.