Material

  • Acetal copolymer plastics have low moisture absorption, high tensile and flexural strength, and are hard and fatigue resistant.
  • Alloy steel is steel that has been alloyed with other materials to improve overall physical properties, such as strength, hardness, toughness, and wear resistance.
  • Aluminum resists corrosion and tarnishing and is lightweight.
  • Brass resists corrosion and is nonmagnetic. It polishes to a rich, golden color and is often used decoratively.
  • Brass 330 has a lower lead content than other brass alloys and has excellent cold workability.
  • 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.
  • Fiberglass contains many extremely fine glass fibers in a plastic composite, and is commonly used for its strength, nonreactivity, and to insulate against sound, heat, and electricity.
  • Nylon is very strong and flexible, has excellent abrasion resistance, is lightweight, and resists crushing and cracking.
  • Polyvinyl chloride (PVC) is corrosion resistant, lightweight, and high strength. It resists reactions with acids, gasoline, alcohol, and hydrocarbons.
  • Polycarbonate is easily worked, resists grease, oil, detergent, and most inorganic acids, and has a very high impact resistance at nearly 30 times that of safety glass.
  • Polyetheretherketone (PEEK) resists chemicals and water absorption. It is impact resistant and effective in high temperatures.
  • Polyetherimide (PEI) is heat resistant, has extremely low smoke generation in a fire, resists water absorption, and has high tensile strength and hardness.
  • Polyimide resists commonly used solvents and oils such as hydrocarbons, alcohols, esters, and weak acids. It is lightweight and flexible, and resists heat.
  • Polypropylene resists most chemicals, has excellent dimensional stability, and is sterilizable.
  • Polytetrafluoroethylene (PTFE) resists chemicals, moisture, and high temperatures. It is often used for electrical applications.
  • Polyurethane is nonconductive and has good abrasion, chemical, and UV radiation resistance.
  • Polyvinylidene fluoride (PVDF) is highly resistant to solvents, acids, bases, and heat. It has low smoke generation when burned, and can be molded, injected, or welded.
  • Stainless steel resists scaling and corrosion.
  • Stainless steel 18-8 is corrosion resistant but mildly magnetic.
  • Stainless steel 303 is the free-machining equivalent to grade 304, due to the addition of sulfur and phosphorous. This means that 303 will produce a clean chip when machined or turned, unlike 304.
  • 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.
  • Stainless steel 416 is easy to machine due to the addition of sulfur in the alloy. It is magnetic and hardenable.
  • Stainless steel A286 has high strength and corrosion resistance and is useful for continuous service in high temperatures. This grade is often used in gas turbines and jet engines.
  • 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.