Tigerhood™ Classic Protective Cap Welding Helmet Shell, SH10, Gray, 2 in W, 4 1 4 in L no checkout Abrasive Material Zirconium Anchor Brand Abrasive Material Zirconium Anchor Brand Catalog NO Applicable Materials Cast Iron 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 fading Smooth seamless shell deflects sparks and spatter reducing the risk of burn through Available in a variety of colors