Copper Nickel Fasteners

Copper Nickel Fastener Grades

C71500 C70600
AISI 4130 Bolts

Copper Nickel Fasteners are manufactured in forms of bolts, screws, stud bolts, threaded rods, nuts & washers; primarily for use in marine applications, for their notable resistance against sea water corrosion. Also often called as Cupro Nickel grade fasteners, these fasteners are available in two prime grades; CuNi 9010(C70600) and CuNi 7030 (C71500) with 90:10 ratio. C70600 fasteners have copperish appearance due to content ratio. Copper Nickel Fasteners are produced with reference to grade specifications of ASTM B122, B151 & B171. With extensive usage in marine sector, copper nickel fasteners are key products in our portfolio.

Copper nickel, also known as cupro nickel alloy, is an alloy of copper and nickel with other strengthening elements. Known for their resistance to sea-water corrosion, Copper nickel alloys are used in industries related to shipbuilding, desalination, hydro power generation, cooling system, offshore platforms, heat exchanger and condenser fabrication.

Copper Nickel Fastener

Boltport offers copper nickel fasteners in following types.

  • Copper Nickel Bolts
  • Copper Nickel Screws
  • Copper Nickel Stud Bolts
    Stud Bolts
  • Copper Nickel Threaded Rods
    Threaded Rods
  • Copper Nickel Nuts
  • Copper Nickel Washers
  • Copper Nickel Accessories
  • Copper Nickel Components

Standard Specifications for Copper Nickel Fasteners

Specification Grade Products
ASTM B122 UNS C70600/C71500 Bolts, Screws, Stud Bolts, Nuts, Washers & Components
ASTM B151 UNS C70600/C71500 Bolts, Screws, Stud Bolts, Nuts, Washers & Threaded Components
ASTM B171 UNS C70600/C71500 Bolts, Screws, Stud Bolts, Nuts, Washers & Sheet Metal Components

Applications for Copper Nickel Fasteners

Copper Nickel Fasteners are used for bolting pipeline equipments, instruments and components such as flanges, valves, pumps operating in following sectors.

Shipbuilding and Repair Marine & Offshore Engineering Sea-Water Desalination Plants
Power Generation Process Equipment Manufacturing Oil and Gas Platforms