Products The products below are identified to meet the majority of your maintenance and repair requirements.  Aquamarine 1 Very high strength and ductile weld deposit, used in welding dissimilar metals. Aquamarine 2 Very high tensile weld, low heat input, used for practically all maintenance repairs Emerald 1 Welding 302, 304, 308, 316L, 347 stainless steels. Emerald 2 Welding unknown stainless’ together especially 309 and dead stainless steels. Onyx 1 Nickel 99, extremely machinable cast iron rod. Onyx 2 Nickel 55 cast iron rod, can be machined. Onyx 4 Nickel free electrode for difficult to weld cast iron, grind only non machinable. Ruby Premium low hydrogen rod, up to 120,000 psi. Sapphire Superior low hydrogen rod, up to 80,000 psi. Turquoise 1 Very dirty deep penetrating all position low carbon rod. Turquoise 2 Very dirty all position low carbon sheet metal rod.