• Applications and Features of Nickel Alloys

• During the rise of civilization nickel was used in alloys. Various chemical analyseshaveled to the conclusion that nickel is present in the weapons, tools, and coins of many societies in different amounts.
  
  Nickel, in combination with other metals and materials,has led to some excellent alloys that are in great demand today. An ingenious element that can be mixed with any other metal, nickel is used in alloys that serve a variety of purposes. For example, copper and nickel have strong solubility. Heat resistance and corrosion resistance are the two major characteristics of nickel alloys.These alloys are used in many industries, such as:

  • Nuclear industry

  • Medical industry

  • Petrochemical and chemical industries

  • Steam turbine power plant and aircraft gas turbine industries

  INCONEL 625 – Alloy

  INCONEL 625 is the strongest nickel alloy and is oxidation and corrosion proof.This nickel alloy contains niobium,which,when it reacts with the molybdenum, makes the alloy stronger and tougher. This nickel alloy is used for AL-6XN welding and its toughness helps in cracking chloride ions. INCONEL 625 is environmentally very strong and is used for making pollution control equipment, nuclear reactors, marine engineering, and aerospace.
  
  

  INCONEL 625 is found in the form of:

  • Plates

  • Bars and sheets

  • Pipes

  • Tubes and wires

  Characteristics of INCONEL 625:

  • 1800° F oxidation resistant

  • Non-magnetic and extremely strong

  • Corrosion-resistant

  • Immune to chloride ions cracking

  Application and uses of INCONEL 625:

  • Aerospace and for jet engine exhaust systems

  • Aircraft drafting systems

  • Engine reverser systems

  • For chemical process equipment and for sea water equipment

  INCONEL 625 formation:
  This nickel alloy has excellent welding and creating characteristics. If the temperature is maintained within 1800 - 2150° F, then this INCONEL 625 can be created easily. However, to check on the grain size,low-end temperatures must be maintained for better and more accurate results. Because of its excellent ductility, Alloy 625 is formed not only by hot working, but also with cold working.The alloy will turn out strong if proper temperature is maintained and the cooling is done quickly. Both automatic and manual welding methods can be applied to this nickel alloy.
  
  INCONEL 718
  Other common names of INCONEL 718 are Alloy 718, Nicrofer 718, Haynes 718 and many more.
  Alloy 718 is specially designed to resist corrosive environments, pitting, and crevice corrosion, and is made of a nickel-chromium-molybdenum mixture. This nickel alloy is quite versatile andis therefore used for many purposes. At high temperatures, INCONEL718 shows excellenttensile, creep,and rupture strength properties, anda high yield feature. This type of nickel alloy is used from cryogenic temperatures to a maximum of 1200° F. To permit age hardening that assists in annealing and welding, heatinga composition of niobium gives greater advantage to alloy 718. This type of nickel alloy gets its strength from niobium, which acts with the molybdenum, helping to stiffen the alloy’s matrix and strengthen the heating process. Because of its composition, the INCONEL 718 can be formed and weldedin the annealed or age-hardening condition. Pollution control equipments, nuclear reactors, marine engineering, chemical processing, and aerospace are some of the major industries that benefitfrom this super nickel alloy.
  
  INCONEL 718 is available in several forms, including:

  • Sheetsand plates

  • Bars

  • Wires

  
  
  

  Characteristics of INCONEL 718 are:

  • High-temperature resistant

  • Tensile and creep rupture strength

  • Extremely resistant to sulfide and chloride stress corrosion cracking

  • Resistant to post-weld age cracking

  • Chloride ion stress corrosion and Aqueous corrosion resistant

  • High yield ductile strength properties

  • Slow aging that helps preventcracking whilecooling and heatingduringannealing

  
  
  

  INCONEL 718 is used in the following applications:

  • Aerospace

  • Nuclear reactors

  • Chemical processing

  • Equipment for pollution control

  • Cryogenic storage tanks

  • Components for liquid fuel rocket motors

  • Gas turbine engine parts

  • Mandrels, tubing hangers, springs, fasteners, and valves

  • Well head completion equipment and blowout preventers (BOP’s)

• • 
  • Serving the Forging Industry:
    
    Having a hard time finding a large diameter bar size?
    Give us a call.  1-800-223-3989 
  • Large sizes in stock: Waspaloy, 718, 625, L605

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