9000 Series Reusable Full Face Respirator, Medium, Airborne Particles/Gases/Vapors, Thermoplastic Elastomer ORS NASCO and 347 stainless steels|Controlled ferrite

9000 Series Reusable Full Face Respirator, Medium, Airborne Particles Gases Vapors, Thermoplastic Elastomer ORS NASCO and 347 stainless steels Controlled ferrite and 347 stainless steels Controlled ferrite in the weld deposit gives excellent notch toughness at cryogenic temperatures Deposits a max of 4% carbon in the weld metal to minimize the formation of chromium carbides and consequent susceptibility to intergranular corrosion Used on food and pharmaceutical equipment The depressed center design allows the flange lock nut to recess within the wheel so that it can be used for various grinding and cutting applications