Nickel-based super alloy: Monel 502 (UNS N05502)

What is Monel 502?

Monel 502 (also known as UNS N05502) is a nickel copper alloy, which is part of monel series superalloys. Monel 502 is usually present in the form of sheet, strips, rods, bars and wires, which improves machinability due to its high sulfur content. In addition, the superalloy has excellent corrosion resistance and high strength. These properties make it very suitable for difficult marine and chemical environments. It is also resistant to sulfuric acid and performs well at sub zero temperatures.

Superalloys have the ability to work at extremely high temperatures and severe mechanical stresses. They also have good creep resistance and oxidation resistance. They can form different shapes. They are treated by solution hardening, work hardening and precipitation hardening to improve their strength. There are three types of superalloys, namely cobalt base alloy, nickel base alloy and iron base alloy.

20200831010554 20501 - Nickel-based super alloy: Monel 502 (UNS N05502)

Monel 502 (UNS N05502) wires

Chemical Composition of Monel 502 (UNS N05502)



















Physical Properties of Monel 502 (UNS N05502)


Melting point 
(°C )



Mechanical Properties of Monel 502 (UNS N05502)


Tensile strength

Yield strength



Elastic modulus

Monel 502






The machinability of Monel 502

This alloy is similar to Monel K500, but with improved machinability. It machines much the same as the austenitic (300 Series) stainless steels.

Forming of Monel 502

  • The alloy has good ductility and is readily formed by conventional methods.

Welding of Monel 502

  • Weldability is good by conventional means.

Hot working of Monel 502

  • Hot work temperature range is 2100 F to 1600 F. Do not allow the product to slow cool in air, rather it should be cooled from 1450 F (or higher) by quenching.

Cold working of Monel 502

  • The alloy has good ductility and may be cold worked by conventional means.

Aging of Monel 502

  •  Aging is done at 1100 F to 1125 F for 16 hours, followed by slow furnace cooling at a rate of 25 F per hour to 900 F. Cooling rate from 900 F is not critical.

Annealing of Monel 502

  • Annealing is done at 1900 F and water quench.

Heat Treatment of Monel 502

  • This alloy responds to a precipitation hardening heat treatment and to annealing.

Application areas of nickel-based alloy Monel 502 (UNS N05502):

Due to its good mechanical and physical properties, Monel 502 nickel alloy is widely used in industrial fields. Some of the more common uses of Monel 502 include:

  • Wire wound resistors.
  • Bimetal contacts.
  • Electric and electronic applications.
  • Marine engineering.
  • Chemical and hydrocarbon processing equipment.
  • Gasoline and freshwater tanks.
  • Crude petroleum stills.
  • De-aerating heaters.
  • Boiler feed water heaters and other heat exchangers.
  • Pumps, shafts and fasteners.
  • Industrial heat exchangers.
  • Chlorinated solvents.
  • Crude oil distillation towers.
  • Meter and valve parts.
  • Screw machine products.
  • Oil refinery piping.
  • Heat exchangers.
  • Nuclear fuel production.
  • Generator tubing.
  • High temperature heating coils.
  • Crude oil transfer piping.
  • Propeller and pump shafts.
  • Piping system.
  • Heat exchange tubes.
  • Pipe fittings.
  • Flanges.
  • Valves.

Variety specifications and supply status of Nickel-based super alloy: Monel 502 (UNS N05502):

Variety classification:

Yaang Pipe Industry can produce various specifications of Monel 502 seamless pipe, Monel 502 steel plate, Monel 502 round bar, Monel 502 forgings, Monel 502 flangeMonel 502 pipe fittings, Monel 502 welded pipe, Monel 502 steel strip, Monel 502 wire and supporting welding materials. 

Delivery status:

  • Seamless pipe: solid solution + acid white, length can be set;
  • Plate: solid solution, pickling, trimming;
  • Welded pipe: solid solution acid white + RT% flaw detection;
  • Forging: annealing + car polish; Bars are forged and rolled, surface polished or car polished;
  • Strips are delivered after cold rolling, solid solution soft state, and deoxidized;
  • Wire rods are finely ground in solid solution pickled disk or straight strips, solid solution straight strips Delivery in light state.

Source: China Monel 502 Flanges Manufcturer – Yaang Pipe Industry (

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

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Nickel-based super alloy: Monel 502 (UNS N05502)
Monel 502 (also known as UNS N05502) is a nickel copper alloy, which is part of monel series superalloys.
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