Inconel 625 Forgings | Weldaloy Specialty Forgings

Inconel® 625 is a nickel-based superalloy known for its high strength and resistance to pressure, oxidation, and corrosion. Nickel alloys like alloy 625, and Inconel® 718, possess ideal traits required for extreme industrial applications, including aerospace, marine, chemical processing, and power generation. 

Characteristics of Inconel 625 Alloy

Inconel 625®, also known as UNS N06625, is a durable nickel-based alloy known for its many ideal characteristics, thanks to the elements that make up this nickel-based alloy. Molybdenum and niobium provide the 625 alloy with superior strength properties. When used in high-temperature applications, nickel alloys create a protective oxide layer that enhances their heat resistance. 

Besides its incredible strength, alloy 625 is known for its resistance to corrosion, resistance to oxidizing, and many other corrosive elements. Parts forged in this Inconel® alloy can withstand prolonged exposure to salt water, fresh water, air, neutral salts, and alkaline chemicals at high levels of heat and pressure. 

Inconel 625 Forgings Applications

Because of their many ideal characteristics, nickel-based superalloys are used for many industrial applications. This is especially true for Inconel® 625 forged parts.

Alloy 625 (UNS N06625) is a very forgeable nickel alloy. Inconel® 625 be forged into seamless rolled rings and simple part shapes via open die forging applications, including bars and blocks, disks, stepped-shafts, and other simple open-die shapes. This Inconel alloy can also be used for semi-closed die forging applications. This is recommended for higher volume parts, finer tolerances, and less material waste on the completed forged part or specific grain flow requirements for enhanced mechanical properties.

Inconel® forged parts are used in various industrial applications. The aerospace sector relies on alloy 625 forged parts for several components, including aircraft engines, fuel lines, heat exchanger casings, and rocket components. The heat resistance properties of alloy 625 are ideal for heat shields, furnace hardware, and chemical plants. Some of the applications that require alloy 625 strength and resistance to corrosion are valves, seals, aircraft ducting systems, engine exhaust systems, turbine rings, heat exchangers, and land-based turbine components. Because of its ability to maintain strength at elevated temperatures, this alloy is often considered in advanced reactor concepts (ARC) and other energy and power generation uses.


Aerospace Engineering

  • Aircraft ducting systems
  • Engine exhaust systems
  • Thrust-reverser systems
  • Resistance welded honeycomb structures for housing engine controls
  • Fuel and hydraulic line tubing
  • Spray bars
  • Bellows
  • Turbine shroud rings
  • Heat-exchanger tubing in environmental control systems
  • Combustion system transition liners
  • Turbine seals
  • Compressor vanes

Power Generation and Hardware Manufacturing

  • Gas turbine components
  • Industrial furnace and accessories
  • Heat exchangers
  • Scrubbers
  • Land-based gas turbines

Inconel® 625 forged parts are also used for the following applications:

  • Heat shields
  • Furnace hardware
  • Gas turbine engine ducting
  • Combustion lines/spray bars
  • Chemical plant hardware
  • Special seawater applications

Inconel 625 Forgings Expertise

Inconel® 625 is a highly sought-after nickel-based superalloy due to its high strength, resistance to corrosion, and resistance to oxidizing this Inconel® alloy offers. 

Weldaloy Specialty Forgings is a custom forging manufacturer providing customers with quality Inconel® 625 (UNS N06625) parts. We offer open-die forgings, seamless rolled rings, and heat treat and machining capabilities. We provide independent metallurgical laboratory services for projects, including grain size and grain direction specifications, to ensure that finished forged products meet the most demanding mechanical and testing standards. Our in-house team of engineers and quality personnel provides technical expertise on Inconel® 625 parts at every step of production and testing to ensure the quality of our products.

Below is a general guideline for Weldaloy’s Inconel® 625 forging capabilities. Please contact us for specific requirements of forged parts, or submit an RFQ here

Inconel 625 Forgings Guidelines

Item Our Capabilities
50" Max OD
Flat Bar / Blocks
16" Max
Cylinders / Sleeves
40" Max OD/Width
Round / Shafts
12" Max OD/Width
Custom Die Press
24" Max OD/Width

*Weldaloy is expanding capabilities to 120’’ maximum OD and providing NADCAP heat treating in late 2022/early 2023. Read more here

Read Inconel® Material Properties here.


Weldaloy Specialty Forgings has more than 75 years of forging metals and successful customer relationships. Customers requiring parts forged in Inconel® 625, Inconel® 718, and other nickel-based superalloys will find Weldaloy a reliable partner for delivering quality parts on time.  

“Weldaloy’s ability to produce two rotor end ring forgings in a timely manner helps our company maintain an already critical delivery schedule. Thank you for a tremendous response.”

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