Welding Articles : Non-Ferrous Metals

(a) General. These are usually made with alloys of aluminum, lead, magnesium, or tin. Except for those made of lead and tin, they are generally light in weight and white in color. (b) Appearance. The surface is much smoother than that produced by castings made in sand. (c) Fracture test. Fractured surface is white and [...]

(a) General. Zinc is a medium low strength metal having a very low melting point. It is easy to machine, but coarse grain zinc should be heated to approximately 180°F (82°C) to avoid cleavage of crystals. Zinc can be soldered or welded, if it is properly cleaned and the heat input closely controlled. (b) Uses. [...]

(a) General. Tungsten is a hard, heavy, nonmagnetic metal which will melt at approximately 6150°F (3400°C). (b) Uses. Tungsten is used in making light bulb filaments, phonograph needles, and as an alloying agent in production of high-speed steel, armorplate, and projectiles. It is also used as an alloying agent in nonconsumable welding electrodes, armor plate, [...]