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Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A

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Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Kovar Capillary Tube (4J29) / K94610
Alloy 46 / 1J46 / Fe-46Ni / UNS K94600
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Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Nimonic 80A / UNS N07080 / W. Nr 2.4952
Nimonic 263 / UNS N07263 / W.Nr: 2.4650 / Age-Hardenable Nickel-Cobalt-Chromium-Molyb- Denum Alloy 263 / Haynes C263
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Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Waspaloy alloy bar N07001/GH4738/ Waspaloy Strip/Wasaploy pipe
MP35N Bar/ AMS5844 / High Tensile Strength Cobalt Alloy MP35N / R30035 Wire/
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Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Inconel 718 / Nickel Alloy 718 / UNS: N07718 / W. Nr: 2.4668/NiCr19Fe19Nb5Mo3 / NA 51 / NC19FeNb
InconelX-750 / N07750 / W.Nr.2.4669 / NiCr15Fe7TiAl / NC15TNbA / GH4145
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Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A
Alloy L605 / Haynes 25 / UNS R30605 / W.Nr 2.4964 / Cobalt L605 / GH5605
Incoloy A-286 / UNS S66286 / W.Nr 1.4980
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Short Description:

Austenitic superalloy A286 can be hardened and strengthened by heat treatment and is used for applications at temperatures up to 1300° F. A286 stainless can also be used for lower stress applications at higher temperatures.

Product Description

INCOLOY alloy A-286 is an iron-nickel-chromium alloy with additions of molybdenum and titanium. It is agehardenable for high mechanical properties. The alloy maintains good strength and oxidation resistance at temperatures up to about 1300°F (700°C). The alloy is austenitic in all metallurgical conditions. The high strength and excellent fabrication characteristics of INCOLOY alloy A-286 make the alloy useful for various components of aircraft and industrial gas turbines. It is also used for fastener applications in automotive engine and manifold components subject to high levels of heat and stress and in the offshore oil and gas industry. 


Grade 660A refers to a specific alloy material called Inconel 660A. Inconel Grade 660A is a precipitation-hardenable nickel-chromium-iron alloy with excellent mechanical properties at high temperatures. It belongs to the Inconel family of superalloys, which are known for their high strength, corrosion resistance, and good creep and rupture strength.

The alloy composition typically includes approximately 24% nickel, 19% chromium, 2.5% aluminum, 1.5% titanium, 1% silicon, and small amounts of other elements. The addition of aluminum and titanium provides precipitation hardening capability, which improves the alloy’s strength and stability at elevated temperatures.

Inconel Grade 660A is commonly used in applications that require high strength and excellent corrosion resistance, such as gas turbine engine components, high-temperature fasteners, springs, and high-strength bolting. It is well-suited for applications in aerospace, power generation, and other industries where materials are subjected to extreme temperatures, high mechanical stresses, and corrosive environments.

Features of alloy material Grade 660A

Grade 660A, also known as Inconel 660A or Alloy 660A, possesses several notable features due to its specific composition and heat treatment. Here are some key features of this alloy material:

  • High Temperature Strength: Inconel 660A exhibits excellent strength at high temperatures. It maintains its mechanical properties and can withstand prolonged exposure to elevated temperatures without significant loss in strength.
  • Creep Resistance: The alloy demonstrates good resistance to creep, which refers to the gradual deformation that occurs under constant stress at high temperatures. This property makes Grade 660A suitable for applications subjected to long-term exposure to high temperatures and stress.
  • Corrosion Resistance: Inconel 660A offers high resistance to corrosion, including oxidation and scaling, even in aggressive environments. This property makes it suitable for applications where the material is exposed to corrosive gases, acids, and saltwater.
  • Precipitation Hardening: Grade 660A is a precipitation-hardenable alloy, meaning it gains additional strength through a heat treatment process. The precipitation of intermetallic phases, such as gamma prime (γ’) and carbides, contributes to the alloy’s enhanced mechanical properties.
  • Ductility and Toughness: Despite its high strength, Inconel 660A retains a level of ductility and toughness, allowing it to withstand mechanical loads and impacts without failure.
  • Fatigue Resistance: The alloy exhibits good fatigue resistance, enabling it to endure cyclic loading and repeated stress without experiencing fatigue failure.
  • Versatility: Grade 660A is a versatile material used in various industries, including aerospace, power generation, oil and gas, and chemical processing. It finds applications in gas turbine engine components, high-temperature fasteners, springs, high-strength bolting, and other critical high-temperature applications.

Incoloy A-286 Characteristic

  • It is an alloy material with high temperature strength and high temperature oxidation resistance.
  • It has high yield strength, endurance and creep strength below 650°CC
  • It has good processing plasticity and satisfactory welding performance.

Incoloy A-286 Chemical Composition

% Cr Ni Mo Co Va Al Ti B C Fe Mn Si P S
MIN 13.5 24 1 - 0.1 - 1.9 0.003 - - - - - -
MAX 16 27 1.5 1 0.5 0.35 2.35 0.01 0.08 Balance 2 1 0.025 0.02

Incoloy A-286 Physical Properties

Density,g/cm3 Melting Range ,°C Specific Heat,J/kg•°C Permeability at 70°F (21°C) and 200 oersted (15.9 kA/m)
7.94 1370-1430 419 1.007

Incoloy A-286 minimum mechanical properties in the room temperature:

Tensile Strength (Rm N /m㎡) Yield Strength (RP0.2 N /m㎡) Elongation (A5/%) Brinell hardness HB
610 270 30 ≤32
  • Bars & Rods & Foring Ring /Flanges
  • Sheet & Plate
  • Strip & Coil
  • Welding Wire &Spring wire
  • Seamless Tube & Welded Pipe

»Round Bar & Square Bar & Hexagon Bar       

● Diameter : φ8~φ300mm   Length:10mm-6000mm

● Hot forging, Hot Rolling, Cold Drawing

● Bright Surface, Polished Surface, Black Surface

»Tube & Pipe:Seamless Tube& Welded Pipe

● Cold Drawing Seamless Pipe: φ1.0~φ220mm

● Hot Extrusion pipe: φ50~φ250mm

● Others : U Blend Tube and Elbow

»Hot Rolled Plate & Cold Rolled Sheet 

● Cold Rolling Sheet Thickness: ≦2.0mm      Width:≦1500m

● Hot rolling Plate Thickness: ≧4.0mm         Width: ≦2500m

»Strip & Tape Ribbon

● Thickness: ≧ 0.01mm     Width: 15mm-300mm

● Cold rolling BA Strip, Hard & Soft Condition

»Straight Length Wire & Spool Wire 

● Welding Wire: φ 0.1mm~6.0mm      Cut length Rod: φ1.0~φ8.0mm

● Package : 5-25kg/Spool or Box

Incoloy A286 / UNS S66286 / W.Nr 1.4980 / A286 Alloy / Superimphy 286 / Pyromet A286 / Udimet A286 / Grade 660A

Incoloy A-286 Applications

  • Jet engine components
  • High temperature fasteners, springs
  • Non-magnetic cryogenic equipment

In the realm of metallurgy, the quest for materials that embody strength, durability, and versatility is unending. Among the alloys that stand out is Grade 660A stainless steel—a high-strength, heat-resistant material that finds its place in a wide range of industrial applications. This article delves into the intricate details of Inconel 660A stainless steel, exploring its composition, mechanical properties, applications, and the factors that contribute to its reputation as a robust and reliable material in demanding environments.

Understanding Grade 660A Stainless Steel: 

Grade 660A, also known as A286, is a precipitation-hardening austenitic stainless steel. It is characterized by its high strength, excellent corrosion resistance, and exceptional heat resistance. The composition of Inconel 660A typically includes elements such as iron (Fe), nickel (Ni), chromium (Cr), and titanium (Ti), among others. The careful combination of these elements results in an alloy that exhibits remarkable mechanical and thermal properties, making it well-suited for applications in extreme conditions.

Mechanical Properties and Heat Resistance: 

One of the defining features of Inconel 660A stainless steel is its impressive mechanical strength, which is achieved through a combination of precipitation hardening and solid solution strengthening mechanisms. This allows Grade 660A to maintain its integrity even at high temperatures, making it an ideal candidate for applications that require both strength and resistance to thermal stress.

Inconel 660A stainless steel retains its mechanical properties at temperatures exceeding 700°C (1300°F), which makes it suitable for applications in environments where conventional stainless steels would experience significant loss of strength. This exceptional heat resistance makes Grade 660A a valuable material for industries such as aerospace, automotive, and power generation.

Corrosion Resistance and Versatility: 

In addition to its mechanical and heat-resistant properties, Inconel 660A stainless steel boasts excellent corrosion resistance. This resistance extends to both atmospheric and aqueous environments, allowing the material to retain its integrity in the presence of moisture, chemicals, and corrosive agents. This versatility in the face of various environments makes Grade 660A stainless steel an attractive choice for applications where corrosion resistance is paramount.

Applications in Challenging Environments: 

Grade 660A stainless steel finds its applications across a diverse range of industries, particularly in environments where extreme conditions prevail. Some notable applications include:

  1. Aerospace and Aviation: In the aerospace industry, Inconel 660A stainless steel is used for manufacturing components such as turbine blades, exhaust systems, and fasteners. Its combination of strength and heat resistance ensures reliable performance in jet engines and other aircraft components exposed to high temperatures.

  2. Power Generation: Within power generation, Grade 660A stainless steel plays a critical role in the manufacturing of gas turbine components, combustion chambers, and exhaust systems. These components operate in harsh conditions that demand both mechanical strength and resistance to elevated temperatures.

  3. Automotive Industry: In automotive applications, Inconel 660A stainless steel is utilized in exhaust systems, turbocharger components, and other engine parts that are subject to intense heat and corrosive gases.

  4. Oil and Gas: The oil and gas industry benefits from Grade 660A’s corrosion resistance and high-temperature stability in components such as downhole tools, pumps, and valves used in exploration, production, and refining processes.

Precipitation Hardening Mechanism: 

The remarkable mechanical properties of Inconel 660A stainless steel are primarily attributed to the precipitation hardening mechanism. When the alloy is subjected to heat treatment, the solute atoms within the material form fine particles that hinder the motion of dislocations—a process that contributes to the alloy’s strength. This unique combination of precipitation hardening and solid solution strengthening sets Grade 660A apart from conventional stainless steels.

Conclusion: Engineering Excellence Unleashed: 

Grade 660A stainless steel exemplifies the culmination of engineering excellence—a material that offers high strength, exceptional heat resistance, and corrosion resistance in a single package. Its unique combination of properties has positioned it as a preferred choice for industries that demand robust performance in extreme conditions. From the aerospace skies to the depths of the oil wells, Inconel 660A stainless steel plays a pivotal role in shaping the modern world.

As technology advances and industries continue to push boundaries, the demand for materials like Grade 660A stainless steel remains unwavering. Its contribution to enhancing safety, efficiency, and performance in critical applications underscores its significance in modern engineering. Inconel 660A stainless steel stands as a testament to the power of metallurgy, where the fusion of science and innovation results in materials that redefine the limits of what is possible.

Elevate your engineering and manufacturing projects with our high-performance Alloy A286 Bar. This premium alloy is meticulously crafted to provide exceptional strength, corrosion resistance, and versatility, making it an indispensable choice for applications across various industries.

Key Features:

  1. Superior Alloy Composition: Our Alloy A286 Bar is composed of a high-quality iron-nickel-chromium alloy, ensuring remarkable strength and durability. Its unique chemical composition also includes additions of titanium and molybdenum, enhancing its corrosion resistance and high-temperature capabilities.

  2. Outstanding Strength: Alloy A286 is renowned for its impressive tensile strength and excellent creep resistance at elevated temperatures. This feature makes it a top choice for applications requiring robust materials that can withstand extreme mechanical stresses.

  3. Corrosion Resistance: The alloy’s exceptional resistance to corrosion, even in harsh and aggressive environments, sets it apart. This makes Alloy A286 Bar a preferred material for applications exposed to chemicals, marine conditions, and extreme weather.

  4. High-Temperature Performance: Alloy A286 exhibits exceptional high-temperature stability, retaining its mechanical properties at elevated temperatures up to 1300°F (704°C). This capability is invaluable for applications such as jet engine components, exhaust systems, and industrial furnaces.

  5. Versatility: The versatility of Alloy A286 Bar makes it suitable for a wide range of applications, from aerospace and automotive to oil and gas, and more. It is commonly used for manufacturing fasteners, shafts, springs, and components that demand both high strength and corrosion resistance.

  6. Precision Manufacturing: Our Alloy A286 Bars are manufactured with utmost precision, ensuring consistent dimensions and high-quality surface finishes. This guarantees that our bars meet or exceed industry standards for performance and reliability.

  7. Machinability: While Alloy A286 is known for its strength and high-temperature performance, it is also relatively easy to machine. This ease of machining allows for efficient and accurate fabrication of components to exact specifications.

  8. Durability and Longevity: Alloy A286 is highly resistant to wear, ensuring the longevity of components made from this material. This results in reduced maintenance and replacement costs over time.

  9. Customization Options: We offer a variety of sizes, shapes, and finishes to cater to your specific needs. Whether you require round bars, square bars, or custom profiles, we can provide a solution that matches your project’s requirements.

  10. Quality Assurance: Our Alloy A286 Bars undergo rigorous quality control procedures to ensure that they meet the highest standards for material integrity, mechanical properties, and consistency.

  11. Applications: Alloy A286 Bars are commonly used in critical applications, such as aircraft engine components, industrial gas turbines, fasteners in marine environments, and high-temperature processing equipment.

Elevate your engineering and manufacturing projects with the unbeatable combination of strength, corrosion resistance, and high-temperature performance offered by our Alloy A286 Bar. Whether you’re designing components for the aerospace industry, automotive sector, or any other field that demands reliability and durability, this alloy is the ideal choice. Choose the power of Alloy A286 to take your projects to new heights.

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