Material

  • Alloy steel is steel that has been alloyed with other materials to improve overall physical properties, such as strength, hardness, toughness, and wear resistance.
  • Brass resists corrosion and is nonmagnetic. It polishes to a rich, golden color and is often used decoratively.
  • Bronze resists corrosion caused by brine, gasses, and sulfite solutions. It is nonmagnetic and nonsparking, with a smooth finish.
  • Ceramic resists corrosive gases and abrasion. It won't melt or rust, and can withstand high temperatures, but is brittle and can break when exposed to an impact.
  • Galvanized steel is made of steel that's been coated with a thin layer of zinc. This protects the underlying steel from corrosion and makes it rust resistant.
  • Monel, also known as Nickel-Copper Alloy 400 bolts, resist heat and corrosion but are slightly magnetic. This strong material is especially well-suited for use near salt water.
  • Nylon is very strong and flexible, has excellent abrasion resistance, is lightweight, and resists crushing and cracking.
  • Polyurethane is nonconductive and has good abrasion, chemical, and UV radiation resistance.
  • Stainless steel resists scaling and corrosion.
  • Stainless steel 18-8 denotes approximately 18% chromium and 8% nickel in the alloy. It is generally nonmagnetic and is hardenable by cold working.
  • Stainless steel 304 is corrosion resistant and withstands high temperatures. When machined or turned, 304 produces a "gummy" chip, which is not desirable.
  • Stainless steel 316 is suitable for use when 304 does not provide enough corrosion resistance, due to the addition of molybdenum in the alloy. It may be slightly magnetic. Sometimes 316 is called "marine grade stainless steel" due to its resistance to chloride corrosion.
  • Steel is a good general purpose material. Steel has better weldability and increased rust resistance over wrought iron.
  • Titanium has good corrosion resistance to saltwater and chemicals while being strong and lightweight. Titanium is biocompatible and non-ferromagnetic.