Iron: It is reduced on an enormous scale in three principal forms; viz., cast iron, steel, and wrought iron. Iron usually appears dark brown, from oxidation or impurity, but when pure, or on a fresh surface, is a gray or white metal. It is easily oxidized (rusted) by moisture, and is attacked by many corrosive agents. Symbol Fe (Latin Ferrum). Atomic weight 55.9. Specific gravity, pure iron, 7.86; cast iron, 7.1. In magnetic properties, it is superior to all other substances.
Titanium: A strong, low-density, highly corrosion-resistant, lustrous white metallic element that occurs widely in igneous rocks and is used to alloy aircraft metals for low weight, strength, and high-temperature stability. Atomic number 22; atomic weight 47.87 melting point 1,660°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4
Copper: A reddish-brown, ductile, malleable metallic element that is an excellent conductor of heat and electricity. It is widely used for electrical wires, water pipes, and rust-resistant parts, either in its pure form or in alloys such as brass and bronze. Atomic number 29; atomic weight 63.546; melting point 1,083°C; boiling point 2,595°C; specific gravity 8.96; valence 1, 2.
Tungum: Tungum Alloy (Aluminium-Nickel-Silicon-brass) combines an unusually high strength to weight ratio, with ductility, excellent corrosion resistance, and first class fatigue properties. Highly resistant to sea water and its atmosphere, Tungum resists both stress and crevice corrosion to offer outstanding serviceability, even at intermittent duty in the highly corrosive ‘splash’ zone
Steel: A generally hard, strong, durable, malleable alloy of iron and carbon, usually containing between 0.2 and 1.5 percent carbon, often with other constituents such as manganese, chromium, nickel, molybdenum, copper, tungsten, cobalt, or silicon, depending on the desired alloy properties, and widely used as a structural material.
Aluminum: A lightweight, silvery-white ductile, malleable, metallic element in group IIIA of the periodic table. It is the most abundant element in the Earth’s crust (8%), but found only in combination, chiefly in bauxite but also as cryolite, feldspar, clay, and many other minerals. Aluminum (British: “aluminium”) is widely used for aircraft parts, engines, window frames, pans, drinks cans, kegs, cooking foil, etc., and to form many hard, light, corrosion-resistant alloys. Its name comes from alumen, the Latin name for the mineral alum