Monel 400 lock nuts are the right choice for underwater applications as they are resistant to seawater at high temperatures. These lock nuts are also resistance to steam, salt, and caustic solutions and rapidly flowing brackish water.

Monel 400 is made of at least 63 percent nickel and between 29 and 34 percent copper, between 2 and 2.5 percent iron and between 1.5 and 2 percent manganese. A nickel alloy, Monel 400 is hardened by cold working.

Characteristics

Good corrosion resistance
Good weldability
Moderate to high strength
Slightly magnetic at room temperature
Good mechanical properties from subzero temperatures up to 1000°F in oxidizing atmospheres

Applications

Chemical processing equipment
Oil industry
Marine industry
Steam generators
Brine heaters
Seawater scrubbers
Sulfuric acid and hydrofluoric acid alkylation plants
Heat exchangers
Oil refineries
Uranium and isotope separation refineries for nuclear fuel
Plastics plants
Propeller and pump shafts
Marine fixtures and fasteners
Electrical components
Gasoline and fresh water tanks
Crude petroleum stills
Boilers
Heaters
Offshore oil and gas drilling

We offer lock nuts in a variety of styles:

Grade C all-metal cone
Grade A reversible
Flexloc nut
Nylon insert

Products are made in the USA. Whether you need a standard or custom size, KD Fasteners has a solution for you. Contact us today by calling 1-800-736-5014 or filling out our contact form.