Nickel Alloy Fasteners

Overview Of the Most Common Nickel Alloy Fasteners

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Nickel alloy fasteners are widely used due to their strength and ductility. Nickel superalloys exhibit high strength coupled with high-temperature resistance and are used for high stress, high heat applications. Wrought nickel alloys are characterized by their anti-corrosive properties as well as the high strength and temperature resistance properties found in the other nickel alloys. Monel, Hastelloy, and Inconel are widely used wrought alloys.  While they do produce high-strength fasteners, nickel alloy screws, bolts, nuts, and studs are difficult to machine and require special handling to avoid work hardening and brittleness.

Types of Nickel Alloy Fasteners

Monel:

  • 400- Monel 400 fasteners are a solid solution nickel alloy that can only be hardened by cold working.Popular for its corrosion resistance to reducing media and seawater, Monel 400 is also tougher in oxidizing environments than copper alloys.
  • 405- Monel 405 Fasteners are made from a nickel-copper alloy and exhibit high strength, toughness, and good corrosion resistance over a wide temperature range. If we do not have your Monel 405 Fasteners in stock (Inch or Metric) we can have these manufactured to your specification.
  • K500- Monel K500 fasteners are also called an Allen screw/Allen bolt, or simply a cap screw conforming to ISO 4762 or DIN 912. Monel K500 Dowel rods are often cut into short lengths called Alloy K500 dowel pins. Our Monel K500 threaded rod is a steel rod with a metric screw thread along its entire length.

Inconel:

  • 600- Inconel 600 Bolts Nuts are used in applications that are prone to chloride ion corrosion stress cracking and caustic corrosion.
  • 625- Inconel 625 Fasteners provide efficiency and high-yield tensile strength in industrial heat-generating appliances. Also, it doesn’t require precipitation-hardening treatments, thus making them hard to brittle or break during the heating process.
  • 718- The Inconel 718 Fasteners are produced with a high concentration of chromium and nickel. The addition of molybdenum in these fasteners gives them superior corrosion resistance. These fasteners don’t deform or dissociate easily in high-temperature and pressure systems
  • X750- This alloy has good resistance to corrosion and oxidation along with high tensile and creep-rupture properties at temperatures of about 1300°F (700°C).

Hastelloy:

  • B2- Hastelloy B2 is a nickel-molybdenum alloy with significant resistance to reducing environments, such as hydrogen chloride gas and sulfuric, acetic, and phosphoric acids.
  • C22- HASTELLOY C-22 alloy (UNS N06022) is one of the well-known and well-proven nickel- chromium-molybdenum materials, the chief attributes of which are resistance to both oxidizing and non-oxidizing chemicals, and protection from pitting, crevice attack, and stress
  • C276- HASTELLOY C276 is a Nickel-chromium-molybdenum wrought alloy that is considered the most versatile corrosion-resistant alloy available. This alloy is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in an as-welded condition.

 

Overview Of the Most Common Nickel Alloy Fasteners

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