#inconel718

Inconel 718 Round Bar (UNS N07718) is a premium nickel-chromium-niobium superalloy bar engineered for extreme strength, corrosion resistance, and high-temperature stability. It is part of the wide range of Inconel round bars offered by manufacturers like Emirerri, typically meeting standards such as ASTM B637 / ASME SB637 and available in multiple diameters and finishes (hot-rolled, cold-drawn, polished, bright).

Premium Inconel Pipe Fittings Supplier in India – High-Temperature, Corrosion-Resistant Alloy Solutions for Critical Industrial Applications | Mcneil Instruments India

Mcneil Instruments India is a trusted manufacturer, supplier, and global exporter of premium-grade Inconel Pipe Fittings engineered for superior durability, extreme temperature resistance, and unmatched corrosion protection. Built using high-nickel chromium alloy and precision manufacturing standards, our fittings are designed to perform under the most demanding industrial environments—including petrochemical plants, offshore drilling, aerospace systems, nuclear processing, and high-pressure fluid transfer applications.

Our Inconel fittings deliver exceptional mechanical strength, oxidation resistance, and long-term thermal stability—making them ideal for high-temperature steam, chemical fluids, acids, and aggressive atmospheres. Every component is manufactured with strict quality compliance to meet ASTM, ASME, and international engineering standards for reliability and safety.

🔧 Available Grades & Variants

Inconel 600 Pipe Fittings

Inconel 625 Pipe Fittings

Inconel 718 Pipe Fittings

Inconel 725 Pipe Fittings

Inconel 800 Pipe Fittings

Inconel 800H Pipe Fittings

⭐ Key Benefits

Outstanding high-temperature and high-pressure performance

Excellent resistance against corrosion, oxidation, and acidic environments

Superior structural stability and metallurgical reliability

Ideal for aerospace, oil & gas, chemical processing, and power generation

📦 Custom sizes | 📄 Material test certificates | 🌍 Global delivery

📞 For product inquiries & orders:

📞 +91 9870883613 ✉️ [email protected]

🌐 www.mcneilinstruments.com

Inconel 718, a high-strength, corrosion-resistant nickel-chromium alloy, is one of the most versatile and widely used superalloys in the aerospace, oil & gas, power generation, and marine industries. Known for its exceptional mechanical strength, weldability, and creep-rupture resistance at elevated temperatures, Inconel 718 has become the go-to material for demanding environments.

What is Inconel 718?

Inconel 718 is a precipitation-hardenable nickel-based superalloy that is designed for outstanding strength and corrosion resistance. It is particularly effective at temperatures ranging from cryogenic levels up to about 700°C (1290°F). The alloy maintains its integrity and mechanical properties under extreme pressure and heat, making it an excellent choice for aerospace and high-stress applications.

Chemical Composition of Inconel 718

This unique blend of elements contributes to its strength and oxidation resistance.

Mechanical Properties of Inconel 718

The alloy’s strength is further improved through aging heat treatment, which precipitates secondary phases such as gamma prime (γ′) and gamma double prime (γ″).

Temperature Resistance

Inconel 718 remains stable and retains high tensile strength at:

Low temperatures (cryogenic)

Intermediate temperatures (~700°C / 1290°F)

It offers better fatigue resistance than many other superalloys and remains resistant to stress-corrosion cracking.

Key Features & Advantages

Excellent creep and stress rupture strength

Outstanding oxidation and corrosion resistance

Good fabricability and weldability (unlike many superalloys)

High tensile, yield, and fatigue strength

Retains its mechanical strength over a broad range of temperatures.

Applications of Inconel 718

Thanks to its exceptional strength, fatigue resistance, and corrosion resistance, Inconel 718 is widely utilized across numerous high-performance industries:

Aerospace Industry

Jet engines

Turbine blades and seals

Exhaust systems

Afterburners

Oil & Gas Sector

Downhole shafts and equipment

Gas turbine components

Fasteners, valves, and pumps

Nuclear & Power Generation

Reactor core components

Heat exchangers

High-strength fasteners

Marine Applications

Submarine propulsion systems

Marine fasteners

Pressure vessels

Inconel 718 Fasteners Manufacturer - Ananka Group

Ananka Group is a trusted manufacturer and supplier of Inconel 718 fasteners, offering a wide array of high-performance components engineered to meet the demands of critical and high-stress applications.

Our Product Range:

Inconel 718 Bolts

Inconel 718 Nuts

Inconel 718 Washers

Inconel 718 Screws

Inconel 718 Studs and Threaded Rods

Export Destinations:

We serve international markets including the USA, Canada, Europe, Middle East, Southeast Asia, and more.

Quality Assurance:

ISO Certified

Mill Test Reports (MTR)

Third-party inspection available

Custom sizes and coating options

Specifications & Standards

Machining & Fabrication

Inconel 718 is relatively easier to machine than other Inconel grades, especially in the annealed condition. However, due to work hardening, special cutting tools and techniques are recommended.

Welding: Suitable for welding via TIG, MIG, and plasma arc.

Forming: Can be hot or cold formed.

Heat Treatment: Typically solution annealed followed by age hardening.

Conclusion

Inconel 718 is a leading superalloy known for its exceptional combination of strength, heat resistance, and corrosion protection. Its versatility in extreme conditions makes it ideal for aerospace, energy, and marine industries. With advanced manufacturing capabilities, Ananka Group supplies high-quality Inconel 718 Fasteners tailored to global industrial needs.

Frequently Asked Questions (FAQ)

What is Inconel 718 used for?

Inconel 718 is widely utilized in aerospace engines, turbine blades, oil and gas equipment, and nuclear reactors, thanks to its exceptional strength and superior resistance to heat and corrosion.

What makes Inconel 718 different from other Inconel alloys?

Inconel 718 is precipitation-hardenable, meaning its strength increases through heat treatment. Additionally, it provides excellent weldability, setting it apart from many other Inconel alloys.

Can Inconel 718 be welded?

Yes, it has good weldability compared to other high-strength alloys, making it suitable for structural applications.

What is the maximum operating temperature of Inconel 718?

Introduction

Inconel 718 is a precipitation-hardened nickel-chromium alloy known for its exceptional strength, corrosion resistance, and high-temperature performance. It is widely used in aerospace, marine, and industrial applications where extreme environments demand superior material properties. This blog explores the characteristics, applications, advantages, and specifications of Inconel 718 fasteners and components.

Characteristics of Inconel 718

Inconel 718 possesses remarkable properties that make it a preferred choice in various industries:

High Strength and Durability: This alloy maintains outstanding mechanical properties at temperatures ranging from cryogenic levels to 1300°F (704°C).

Corrosion and Oxidation Resistance: It resists corrosion in harsh environments, including acidic and high-temperature conditions.

Excellent Weldability: Unlike other nickel-based alloys, Inconel 718 can be readily welded without post-weld cracking.

Creep Resistance: It maintains stability under prolonged stress and high temperatures.

Non-Magnetic: This makes it suitable for applications where magnetic interference must be minimized.

Applications of Inconel 718

Due to its superior properties, Inconel 718 is used in multiple industries, including:

Aerospace Industry:

Jet engine components

Turbine blades

Exhaust systems

Fasteners and bolts

Marine Industry:

Submarine components

Offshore drilling equipment

Propeller shafts

Oil & Gas Sector:

Downhole tubing

High-pressure valves

Heat exchangers

Power Generation:

Gas turbines

Nuclear reactors

Automotive & Motorsport:

Turbochargers

Exhaust manifolds

Advantages of Inconel 718 Fasteners

Inconel 718 fasteners, such as bolts, nuts, and washers, provide significant advantages in demanding applications:

Withstand extreme temperatures and pressures

Prevent galling and seizing in high-stress environments

Maintain mechanical integrity in corrosive and oxidizing conditions

Reduce maintenance costs due to prolonged service life

Chemical Composition of Inconel 718

Mechanical Properties of Inconel 718

Inconel 718 Fasteners Standards and Specifications

Conclusion

Inconel 718 is an exceptional alloy that meets the demands of high-performance industries. Its superior strength, corrosion resistance, and high-temperature capabilities make it ideal for aerospace, marine, oil & gas, and power generation applications. Inconel 718 fasteners offer reliability and longevity, ensuring structural integrity in the harshest conditions. If you're looking for durable and high-quality fasteners, Inconel 718 is a premium choice for your needs.

FAQs

Q1: What is Inconel 718 used for?A: Inconel 718 is used in aerospace, marine, oil & gas, and power generation applications due to its high strength and corrosion resistance.

Q2: Is Inconel 718 better than stainless steel?A: Yes, Inconel 718 offers superior strength, heat resistance, and corrosion resistance compared to standard stainless steel.

Q3: Can Inconel 718 be welded?A: Yes, Inconel 718 has excellent weldability and can be welded without post-weld cracking.

Q4: What is the temperature range for Inconel 718?A: It retains its mechanical properties from cryogenic temperatures up to 1300°F (704°C).

Introduction

Inconel 718 is a high-performance nickel-chromium alloy known for its exceptional strength, corrosion resistance, and heat resistance. It is widely used in industries such as aerospace, power generation, marine, and chemical processing. Developed in the 1950s, Inconel 718 remains one of the most versatile and reliable superalloys in demanding applications.

Inconel 718 fasteners are high-strength, corrosion-resistant fasteners made from a nickel-based superalloy known for its exceptional performance in extreme environments. These fasteners are widely used in industries such as aerospace, marine, chemical processing, and power generation due to their superior mechanical properties, oxidation resistance, and excellent weldability.

Composition of Inconel 718

Inconel 718 is primarily composed of nickel, chromium, and iron, with additional elements that enhance its properties. Below is a typical chemical composition of Inconel 718:

Key Properties of Inconel 718

1. High Strength and Toughness

One of the most notable features of Inconel 718 is its outstanding mechanical strength. It has excellent tensile and yield strength, making it ideal for applications that require durability under extreme stress.

2. Corrosion and Oxidation Resistance

Inconel 718 offers superior resistance to corrosion and oxidation in harsh environments. It performs exceptionally well in high-temperature, high-pressure, and chemically aggressive conditions.

3. Excellent Weldability

Unlike many other superalloys, Inconel 718 can be welded easily without the risk of cracking. This is due to its slower precipitation hardening response, which prevents strain-age cracking.

4. High-Temperature Stability

It maintains its mechanical properties at elevated temperatures, up to 1300°F (704°C). This makes it suitable for aerospace and gas turbine applications.

5. Creep and Fatigue Resistance

The alloy demonstrates excellent creep resistance and fatigue strength, making it ideal for components subjected to cyclic loads over extended periods.

Applications of Inconel 718

1. Aerospace Industry

Inconel 718 is extensively used in jet engines, gas turbines, and aerospace components, including:

Turbine blades and discs

Combustion chambers

Fasteners and structural components

2. Power Generation

The alloy is used in nuclear reactors, steam turbines, and power plants due to its ability to withstand extreme temperatures and pressures.

3. Oil and Gas Industry

Inconel 718 is widely used in drilling equipment, downhole tools, and pipelines due to its resistance to corrosion, pressure, and temperature.

4. Marine Industry

Naval and marine applications, including submarine and offshore structures, benefit from the alloy’s resistance to saltwater corrosion.

5. Chemical Processing Industry

Inconel 718 is used in chemical plants for heat exchangers, reactor vessels, and piping systems exposed to aggressive chemicals.

Manufacturing and Processing of Inconel 718

Heat Treatment

Inconel 718 is typically heat-treated to achieve its full mechanical properties. The standard heat treatment process includes:

Solution Annealing - Heating to 980-1010°C followed by rapid cooling.

Aging Treatment - Heating at lower temperatures (720°C) to enhance hardness and strength.

Machining and Fabrication

Due to its toughness, Inconel 718 is challenging to machine. Specialized cutting tools and techniques, such as carbide tooling and slow cutting speeds, are used.

Welding

The alloy is readily weldable using conventional welding techniques like TIG and MIG welding. Post-weld heat treatment is recommended to prevent potential issues like stress corrosion cracking.

Comparison of Inconel 718 with Other Alloys

Conclusion

Inconel 718 is a superior superalloy known for its exceptional strength, corrosion resistance, and thermal stability. Its extensive use in aerospace, power generation, oil & gas, marine, and chemical industries highlights its importance in high-performance applications. Although it is expensive and challenging to machine, its unique combination of properties makes it an indispensable material in critical environments.

If you are looking for a high-strength, corrosion-resistant alloy with excellent performance under extreme conditions, Inconel 718 is undoubtedly one of the best choices available.

FAQs

Q1: What makes Inconel 718 different from other Inconel alloys?A: Unlike other Inconel alloys, Inconel 718 has superior weldability and a unique precipitation hardening mechanism that enhances its strength.

Q2: Can Inconel 718 be used at cryogenic temperatures?A: Yes, Inconel 718 retains good mechanical properties at cryogenic temperatures, making it useful for applications requiring low-temperature performance.

Q3: What is the lifespan of Inconel 718 components?A: Due to its excellent fatigue and creep resistance, Inconel 718 components have a long operational lifespan, often exceeding several decades in the right conditions.

Q4: How does Inconel 718 compare with stainless steel?A: Inconel 718 is much stronger and more resistant to heat and corrosion compared to stainless steel, but it is also more expensive and harder to machine.

Introduction

Inconel Alloy 718 is a high-strength, corrosion-resistant nickel-chromium alloy that is well-suited for extreme environments, including high-temperature and high-pressure applications. Due to its superior properties, Inconel 718 is widely used in the aerospace, marine, and chemical processing industries. Fasteners made from this alloy exhibit excellent mechanical strength, outstanding oxidation resistance, and superior weldability.

Properties of Inconel 718 Fasteners

High Strength: Inconel 718 fasteners maintain their structural integrity at high temperatures.

Corrosion Resistance: Exceptional resistance to oxidation and corrosion in various harsh environments.

Excellent Weldability: Can be readily welded without cracking, which is rare for high-strength nickel alloys.

Creep and Stress Rupture Resistance: Ensures long service life in demanding conditions.

Cryogenic Suitability: Performs well even in extremely low temperatures.

Types of Inconel 718 Fasteners

Inconel 718 Bolts – Hex bolts, carriage bolts, eye bolts, U-bolts, etc.

Inconel 718 Nuts – Hex nuts, lock nuts, dome nuts, wing nuts, etc.

Inconel 718 Washers – Flat washers, spring washers, fender washers, etc.

Inconel 718 Screws – Machine screws, self-tapping screws, wood screws, etc.

Inconel 718 Studs – Full thread studs, double-ended studs, etc.

Applications of Inconel 718 Fasteners

Aerospace Industry: Used in jet engines, turbine blades, and exhaust ducts due to high-temperature resistance.

Marine Industry: Applied in naval vessels, offshore platforms, and seawater applications.

Power Generation: Utilized in nuclear reactors and gas turbines.

Chemical Processing: Resistant to corrosive chemicals, making it suitable for processing plants.

Automotive Industry: Used in turbochargers and exhaust systems.

Standard Specifications

ASTM B637 – Standard specification for Inconel 718 forged products.

AMS 5662, 5663, 5664 – Aerospace material specifications.

UNS N07718 – Unified numbering system designation.

Chemical Composition of Inconel 718

Nickel (Ni): 50-55%

Chromium (Cr): 17-21%

Iron (Fe): Balance

Niobium (Nb) + Tantalum (Ta): 4.75-5.5%

Molybdenum (Mo): 2.8-3.3%

Titanium (Ti): 0.65-1.15%

Cobalt (Co): ≤ 1.0%

Aluminum (Al): 0.2-0.8%

Carbon (C): ≤ 0.08%

Silicon (Si): ≤ 0.35%

Manganese (Mn): ≤ 0.35%

Sulfur (S): ≤ 0.015%

Mechanical Properties of Inconel 718

Tensile Strength: 135 ksi (931 MPa)

Yield Strength (0.2% offset): 70 ksi (482 MPa)

Elongation: 30%

Hardness: 30-40 HRC

Advantages of Inconel 718 Fasteners

Withstands high-pressure and high-temperature environments.

Excellent fatigue and creep resistance.

Resistant to pitting and crevice corrosion.

Long service life with minimal maintenance.

Why Choose Ananka Group for Inconel 718 Fasteners?

Ananka Group is a trusted manufacturer, supplier, and exporter of Inconel 718 Fasteners. We provide high-quality, precision-engineered fasteners that meet international standards. Our fasteners are available in various sizes, grades, and custom specifications to suit industry needs.

Key Benefits of Choosing Us:

High-Quality Materials: We use premium-grade raw materials for manufacturing.

Precision Engineering: Advanced machinery ensures accurate dimensions and performance.

Global Supply Network: We export to countries worldwide with timely delivery.

Competitive Pricing: Affordable rates without compromising on quality.

Conclusion

Inconel Alloy 718 Fasteners are ideal for applications requiring superior strength, corrosion resistance, and durability. Their ability to withstand extreme conditions makes them indispensable in aerospace, marine, and industrial applications. Choosing a reliable manufacturer like Ananka Group ensures you get the best quality fasteners that meet stringent industry standards.

FAQs

Q1: What makes Inconel 718 different from other Inconel grades?A1: Inconel 718 has excellent weldability and high strength, which sets it apart from other Inconel alloys like 625. It is precipitation-hardened, making it ideal for high-stress applications.

Q2: Can Inconel 718 fasteners be used in seawater applications?A2: Yes, they offer excellent resistance to seawater corrosion, making them suitable for marine and offshore environments.

Q3: Are Inconel 718 fasteners expensive?A3: While they are more costly than stainless steel fasteners, their durability, high performance, and corrosion resistance justify the investment.

Q4: Do you provide custom sizes for Inconel 718 fasteners?A4: Yes, Ananka Group offers customized fasteners in different sizes and specifications as per client requirements.

Inconel 718 Roundbars Suppliers in India.

We are top most global distributors, exporter, supplier and traders of Inconel 718 Roundbars in India.

Inconel 718 Rods (UNS N07718) are used in pollution-control equipment, nuclear reactors, cryogenic storage tanks, and other high temprature critical applications.

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