Tidal Hardware Material Content and Coatings

Material Content

• Medium Carbon Steel (MC) - Approximately 0.3–0.8% carbon content. Balances ductility and strength and has good wear resistance; used for large parts, forging and automotive components.
• High Carbon Steel (HC) - Approximately 0.8–2.0% carbon content. Very strong, used for springs, edged tools, and high-strength wires.
• High Tensile Steel - High-tensile steels are low-carbon, or steels at the lower end of the medium-carbon range, which have additional alloying ingredients in order to increase their strength, wear properties or specifically tensile strength. Impurities have their maximum allowable content restricted.
• Stainless Steel
• Type 304: The basic alloy of the group and the one most generally used. It has good corrosion resistance and ranges from non-magnetic to slightly magnetic. It is most commonly used in fasteners and fittings. Type 304’s low carbon content makes it useful for many welding applications.
• Type 316: This alloy has better corrosion resistance to most chemicals, salts, and acids and is more resistant to the marine atmosphere because of the addition of 2.0 to 3.0% of molybdenum. Another valuable property of T316 is high creep strength at elevated temperatures
• Plastic (Acetal)

Electroplating

• Zinc
• Nickel
• Chrome VI or 6 (Hexavalent Chromium) (OSHA Chrome 6 Standard)
• Chrome III or 3 (Trivalent Chromium) - On September 21st, 2017 EU legislation took effect banning the use of hexavalent chrome solutions to plate components. This is simply because non-toxic trivalent chromium solutions are deemed a viable alternative (www.nomorehex.org).

Other Coatings

• Vinyl
• Polyethylene (PE)
• Rubber

 A nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut with a nylon collar insert that resists turning.