In the world of high-performance alloys, Inconel 718 stands out as a versatile and resilient material. Its impressive strength, excellent weldability, and ability to withstand extreme temperatures make it an ideal choice for a variety of applications. But with so many forms of Inconel 718 bar stock available, how do you know which one is right for your specific needs? This ultimate guide will walk you through the top Inconel 718 bars, their properties, and applications to help you make an informed decision.
Overview of Top Inconel 718 Bars
Inconel 718, a nickel-chromium inconel alloy, offers an exceptional combination of high strength, corrosion resistance, and excellent mechanical properties. These characteristics make it suitable for various industries, such as aerospace, power generation, and chemical processing.
This guide will explore various types of Inconel 718 bars, such as round bars, flat bars, square bars, hex bars, among others. Each bar type carries unique characteristics and advantages, making them ideal for specific applications. We’ll examine the top Inconel 718 bars to help you choose the one that fits your needs best.
- Best for High Temperature Resistance: Inconel 718 Square bar
- Top Choice for Fabricability: Inconel 718 Flat Bar
- Ideal for Aerospace Applications: Inconel 718 Rod
- Best All-Rounder: Inconel 718 Round Bar
- Top Pick for Corrosion Resistance: Inconel 718 Hex Bar ASTM B637 Inconel 718 Annealed Bar stands out as the prime choice for hardening applications due to its superior corrosion resistance compared to other materials. Alloy Inconel 718 is the go-to material for hot rolled applications, with hot rolled flat bar being a prime example. Inconel 718 Polished Bar prioritizes achieving a polished finish. The finishing grade required to meet the metrics is 2.4668. Nickel Alloy 718 Bright Bar is your best bet for achieving an attractive finish. It is the best option to achieve a bright look. Inconel 718 Din 2.4668 Round Bar Cold Drawn excels in a variety of applications, demonstrating outstanding strength and surface quality in cold drawn conditions.
Best for High Temperature Resistance: Inconel 718 Square bar
Price: Price not available
Specifications:
- Material: Inconel 718
- Shape: Square
- Standard: ASTM B166
Pros:
- Exceptional resistance to elevated temperatures
- Suitable for numerous industries
- High tensile and yield strength
Cons:
- Price information not readily available
Inconel 718 Square Bar is a nickel-based alloy that provides exceptional resistance to elevated temperatures, making it suitable for numerous industries such as aerospace, petrochemical, and power generation. The alloy’s mechanical properties include tensile strength, yield strength, and elongation, all of which are essential for these high-temperature applications.
The age-hardening process enhances the tensile properties of Inconel 718 Square Bar through the incorporation of trace elements prior to heating. With an estimated melting point between 2615 – 2635°F (1432 – 1446°C), this material is well-suited for applications requiring high-temperature resistance and stability.
If you need a bar stock that can withstand extreme temperatures and maintain its strength, Inconel 718 Square Bar is an excellent choice.
Top Choice for Fabricability: Inconel 718 Flat Bar
Price: Price not available
Specifications:
- Material: Inconel 718 (UNS N07718)
- Shape: Flat
Pros:
- Good fabricability and weldability
- Versatile for different applications
Cons:
- Price information not readily available
Inconel 718 Flat Bar is known for its good fabricability and weldability, making it versatile for different applications. The alloy’s composition includes tantalum and titanium for stabilization, ensuring its excellent weldability and resistance to post-weld cracking.
This material exhibits the following properties:
- Excellent weldability
- Formability
- Oxidation resistance
- Durability at temperatures up to 1300°F
Inconel 718 Flat Bar is an ideal choice for industries requiring a material that can be easily fabricated and welded while maintaining its strength and corrosion resistance.
Ideal for Aerospace Applications: Inconel 718 Rod
Price: Price not available
Specifications:
- Material: Nickel-based superalloy
- Shape: Round rod
Pros:
- High strength and corrosion resistance
- Widely used in aerospace applications
Cons:
- Price information not readily available
Inconel 718 Rod is a popular choice for aerospace applications due to its high strength and corrosion resistance. The alloy exhibits unique characteristics that make it highly desirable, such as the ability to replace intricate welded assemblies with castings while maintaining excellent weldability.
The rod is widely used in various engineering applications, such as:
- Gas turbines
- Valves in subsurface safety tools
- Industrial-grade fasteners
- Thrust reverser components
- Aircraft engines
Its remarkable strength and corrosion resistance make it an ideal choice for aerospace applications that require components to withstand extreme environments and corrosive substances.
Best All-Rounder: Inconel 718 Round Bar
Price: Price not available
Specifications:
- Material: Nickel-based superalloy
- Shape: Half round bar (also available in round bar)
Pros:
- Versatile option with excellent mechanical properties
- Resistance to various environmental factors
Cons:
- Price information not readily available
Inconel 718 Round Bar is a versatile option with excellent mechanical properties and resistance to various environmental factors. The alloy is capable of sustaining high strength and good ductility up to 1300°F (704°C), making it suitable for a wide range of applications.
The alloy also exhibits excellent resistance to oxidation, corrosion, and frictional wear in chemically aggressive environments, making it suitable for use in various industries. Inconel 718 Round Bar is an all-rounder that can be used both for its high strength and corrosion resistance, making it a popular choice for many applications.
Top Pick for Corrosion Resistance: Inconel 718 Hex Bar
Price: $65.00, $96.00, $202.00, $101.16, $427.12
Specifications:
- Material: Inconel 718
- Shape: Hexagonal
- Standard: ASTM B637, ASME SB 637, SAE AMS 5662, SAE AMS 5663, SAE AMS 5664, SAE AMS 5832, SAE AMS 5914, SAE AMS 5962, ISO 9723, ISO 9724, ISO 9725, DIN 17752, DIN 17753, DIN 17754
Pros:
- Outstanding corrosion resistance
- Suitable for harsh environments
Cons:
- Price varies significantly depending on the supplier
Inconel 718 Hex Bar offers outstanding corrosion resistance, making it suitable for harsh environments. The alloy is widely used in multiple applications due to its corrosion resistance, such as:
- Gas turbines
- Valves in subsurface safety tools
- Industrial-grade fasteners
- Aerospace components
- Chemical processing equipment
- High-temperature springs
- Nuclear reactors
These applications benefit from the remarkable corrosion resistance of Inconel 718, enabling the material to tolerate extreme environments and corrosive substances. If you require a bar stock with excellent corrosion resistance, Inconel 718 Hex Bar is the top pick.
Best for Hardening: ASTM B637 Inconel 718 Annealed Bar
Price: Price not available
Specifications:
- Material: Inconel 718
- Shape: Round bar
- Standard: ASTM B637
Pros:
- Age-hardenable alloy
- Readily fabricated and welded
Cons:
- Price information not readily available
ASTM B637 Inconel 718 Hot Rolled Annealed Bar is an age-hardenable alloy that can be readily fabricated and welded. The hardening process involves sol annealed treatment at 1900-1950°F followed by rapid cooling, typically in water, and then precipitation hardening at 1400°F for 10 hours. This process enhances the alloy’s mechanical properties, such as strength and hardness.
Inconel 718 Annealed Bar is well-suited for applications requiring hardening due to its ability to be easily worked and age hardened, providing outstanding strength from -423 degrees F to 1300 degrees F (-253 degrees C to 705 degrees C). If you need a bar stock that can be hardened and maintain its strength, ASTM B637 Inconel 718 Annealed Bar is the best choice.
Optimal for Hot Rolled Applications: Alloy Inconel 718 Flat Bar Hot Rolled
Price: Price not available
Specifications:
- Material: Inconel 718
- Shape: Flat bar
Pros:
- Ideal for hot-rolled applications
- Excellent high-temperature strength
Cons:
- Price information not readily available
Alloy Inconel 718 Flat Bar Hot Rolled is ideal for applications requiring hot-rolled processing. The material exhibits outstanding mechanical characteristics at both elevated and cryogenic temperatures, including high tensile and creep strength.
Alloy Inconel 718 Flat Bar Hot Rolled is suitable for temperatures up to around 1300°F, making it an excellent choice for hot-rolled applications. It can be easily worked and hardened, providing outstanding strength from -423°F to 1300°F, which makes it perfect for hot-rolled applications.
Top for Polished Finish: 2.4668 Inconel 718 Polished Bar
Price: ₹ 2,000 / Kilogram
Specifications:
- Material: Inconel 718 Ams 5662 Round Bars Nickel Alloy 718
- Shape: Round ASTM B637 and SB637 are the two standards. They both provide requirements for titanium and titanium alloys products.
Pros:
- Polished finish for aesthetic and functional purposes
- Suitable for various applications
Cons:
- Limited information on user reviews
2.4668 Inconel 718 Polished Bar provides a polished finish for aesthetic and functional purposes, making it suitable for various applications. The polished finish offers a variety of advantages, including:
- Increased corrosion resistance
- Improved fatigue performance
- Superior surface quality
- Deeper subsurface deformation zone
This precision ground bar, polished as a channel bar, is utilized in the aerospace, defense, petrochemical, and gas turbine industries for the production of pipes, valves in subsurface safety tools, and as connectors between middle bars. The polished finish may improve the aesthetics of the bar, but it does not notably influence its performance characteristics.
Best for Bright Finish: Nickel Alloy 718 Bright Bar
Price: ₹ 1,999 / Kg
Specifications:
- Material: Inconel 718 Ams 5662 Round Bars Nickel Alloy 718
- Shape: Round
- Standard: ASTM B637
Pros:
- Bright finish for various applications, including sand blasting finished surfaces
- Excellent strength and corrosion resistance, achieved through solution treated materials
Cons:
- Price may vary based on supplier
Nickel Alloy 718 Bright Bar is suitable for various applications due to its excellent strength and corrosion resistance. It provides a bright finish and is widely used in:
- Gas turbines
- Valves in subsurface safety tools
- Industrial-grade fasteners
- Aerospace components
- Chemical processing equipment
- High-temperature springs
- Nuclear reactors
This bright bar is perfect for applications requiring a material that can be easily fabricated and welded while maintaining its strength and corrosion resistance. If you need a bar stock with a bright finish and excellent performance, Nickel Alloy 718 Bright Bar is the top choice.
Ideal for Cold Drawn Applications: Inconel 718 Din 2.4668 Round Bar Cold Drawn
Price: ₹ 1,999 / Kg
Specifications:
- Material: Inconel 718 Ams 5662 Round Bars Nickel Alloy 718
- Shape: Round
- Size: 5MM TO 350MM DIA
Pros:
- Perfect for cold-drawn applications
- High strength and durability
Cons:
- Price may vary based on supplier
Inconel 718 Din 2.4668 forged round bar Cold Drawn is perfect for applications requiring cold-drawn processing. Its strength and durability make it suitable for various industries, such as aerospace, petrochemical, and power generation. The alloy’s mechanical properties include tensile strength, yield strength, and elongation, all of which are essential for these cold-drawn applications.
With dimensions varying from 0.1 to 100 millimeters in diameter and 100 to 3000 millimeters in length, Inconel 718 Din 2.4668 Round Bar Cold Drawn is an ideal choice for applications requiring cold-drawn processing.
Choosing the Right Inconel 718 Bar Stock
Choosing the right Inconel 718 bar stock necessitates careful consideration of the material’s chemical composition, temperature resistance, corrosion resistance, machinability, and cost-effectiveness. Each bar stock type possesses unique characteristics and advantages, aligning them with specific applications. Ensure you evaluate your specific requirements to select the most suitable Inconel 718 bar stock for your project.
Additionally, consider the manufacturing process and size of the bar stock, as this can impact the material’s performance. For instance, hot-rolled Inconel bars may offer better ductility, while cold-drawn Inconel bars may provide a smoother surface finish. Reach out to an expert or supplier to confirm your choice of the most appropriate Inconel 718 bar stock for your application.
Summary
In conclusion, Inconel 718 bar stock comes in various forms and offers a wide range of properties, making it suitable for numerous applications across different industries. Whether you need a bar stock with high temperature resistance, excellent fabricability, or superior corrosion resistance, there is an Inconel 718 bar that is perfect for your needs. By carefully considering your specific requirements and the unique properties of each bar stock, you can select the ideal Inconel 718 bar stock for your project and achieve outstanding results.
Frequently Asked Questions
What is Inconel 718 made of?
Inconel 718 is a nickel-chromium alloy that includes niobium and molybdenum, offering exceptional strength, corrosion resistance, and mechanical properties.
What industries commonly use Inconel 718 bar stock?
Inconel 718 bar stock is widely used in industries such as aerospace, power generation, chemical processing, and petrochemical due to its excellent mechanical properties and resistance to various environmental factors.
What are the main differences between hot-rolled and cold-drawn Inconel bars?
Hot-rolled Inconel bars offer better ductility while cold-drawn Inconel bars provide a smoother surface finish, making them distinct in terms of their manufacturing process and size of the bar stock.
What are the benefits of a polished finish for Inconel 718 bars?
Polished finishes for Inconel 718 bars provide corrosion resistance, fatigue performance, superior surface quality, and a deeper subsurface deformation zone, giving them a range of benefits.
How does age-hardening affect the properties of Inconel 718 bars?
Age-hardening improves the strength and hardness of Inconel 718 bars by incorporating trace elements prior to heating. This process enhances the tensile properties of the alloy.
