Inconel 718

Inconel 718 Suppliers

Inconel 718 is one of the most widely used nickel-based superalloys for high-performance engineering applications. Known for its strength, corrosion resistance, and ability to perform under extreme temperatures, it is trusted across aerospace, defence, marine, oil and gas, and advanced manufacturing industries.

City Special Metals supplies fully certified Inconel 718 materials from UK-held stock, supporting customers across the UK and international markets. Established in 2001, we are recognised for supplying high-quality specialist alloys with dependable lead times, precision machining capabilities, and full material traceability.

As experienced suppliers of Nickel Alloys, we provide Inconel 718 bar and Inconel 718 sheet / plate tailored to customer requirements. Our AS9120 and ISO9001 accreditation gives customers confidence in the quality and consistency of every order.

Whether you need raw material for production or require additional processing such as sawing, waterjet cutting or other value added processes, our team provides practical support and reliable supply throughout the process.

What is Inconel 718?

Inconel 718 is an austenitic nickel-chromium superalloy developed for applications requiring high strength, oxidation resistance, and corrosion performance at elevated temperatures.

The alloy maintains excellent mechanical properties across both high and low temperature environments, including cryogenic conditions. This combination of strength and durability makes it suitable for highly demanding engineering sectors where standard stainless steels or conventional alloys may not perform reliably.

Inconel 718 is commonly used in environments exposed to:

• High temperatures
• Pressure extremes
• Mechanical stress
• Corrosive chemicals
• Saltwater exposure
• Thermal cycling

Its ability to resist creep and fatigue while maintaining structural stability has made it one of the most established superalloys in modern engineering.

Inconel 718 Properties

One of the main reasons engineers choose Inconel 718 is its balance of strength, corrosion resistance, and weldability.

Key properties include:

• High tensile strength
• Excellent fatigue resistance
• Strong oxidation resistance
• Corrosion resistance
• Good weldability
• High creep resistance
• Reliable cryogenic performance

Inconel 718 can maintain good creep resistance up to 700°C (1300°F), while oxidation resistance extends to around 1000°C (1830°F).

The alloy also performs well in aggressive operating environments where components are exposed to heat, pressure, vibration, and chemical attack over long periods.

These characteristics make Inconel 718 suitable for critical applications where material failure is not an option.

Inconel 718 Bar Stock

City Special Metals supplies Inconel 718 bar in a range of diameters and specifications to support machining and engineering applications across multiple industries.

Inconel 718 bar is commonly used for:

• Shafts
• Fasteners
• Turbine components
• Valve parts
• Aerospace components
• Precision machined parts
• Oil and gas equipment

The alloy’s strength and durability make it suitable for components exposed to demanding mechanical loads and temperature fluctuations.

Our Inconel 718 bar stock can be supplied cut to size to support production efficiency and reduce unnecessary machining time.

Where required, we can also provide further added value processes to help customers further.

Inconel 718 Sheet / Plate Supply

We can also supply Inconel 718 sheet / plate for fabrication, structural applications, and specialist engineering projects.

Inconel 718 sheet and plate materials are commonly used in sectors where corrosion resistance and temperature stability are critical.

Applications include:

• Aerospace structures
• Exhaust systems
• Heat shields
• Pressure vessels
• Marine components
• Power generation equipment
• Chemical processing systems

Material can be supplied in a range of thicknesses and dimensions depending on project requirements.

All supplied material includes full certification and traceability documentation to support quality assurance and industry compliance standards.

Industries Using Inconel 718

Inconel 718 is used across industries where high-performance materials are required to maintain reliability under pressure.

Aerospace Engineering

The alloy is widely specified within Alloys For Aerospace applications due to its ability to withstand high temperatures and mechanical stress.

Common aerospace uses include:

• Turbine engines
• Exhaust systems
• Fasteners
• Structural components
• Heat-resistant assemblies

Its high strength-to-weight ratio and fatigue resistance make it suitable for both aircraft and space-related applications.

Defence Engineering

Within Alloys For Defence Engineering, Inconel 718 is selected for components operating in demanding environments where durability and reliability are essential.

This may include:

• Naval systems
• Military aerospace equipment
• Engine components
• High-pressure systems
• Specialist defence manufacturing

The alloy’s corrosion resistance and structural stability support long-term performance in harsh operating conditions.

Oil and Gas

Inconel 718 is also used throughout the oil and gas sector where components are exposed to pressure, heat, and corrosive chemicals.

Typical applications include:

• Downhole tools
• Valves
• Pumps
• Offshore systems
• High-pressure equipment

Power Generation

Power generation systems require materials capable of operating continuously at elevated temperatures. Inconel 718 provides the mechanical stability and oxidation resistance needed for these environments.

Custom Supply

Supplying raw material is only part of the service we provide. City Special Metals also supports customers by adding further value to our products though a number of processes.

Our capabilities include:

• Precision saw cutting
• Waterjet cutting
• Boring & Trepanning
• Surface milling

We understand the importance of dimensional accuracy and consistent material quality for critical engineering applications. Every order is handled with close attention to customer specifications and delivery requirements.

Quality Assurance and Certification

For industries such as aerospace, defence, and manufacturing, material quality and traceability remain essential.

City Special Metals operates to AS9120 and ISO9001 standards, supporting strict quality control processes across all supplied materials.

This includes:

• Material verification
• Inspection procedures
• Batch traceability
• Certification management
• Controlled stock handling

Our commitment to quality has helped establish long-standing relationships with customers requiring dependable specialist alloy supply.

Buy Inconel 718 from UK Stock

Businesses choosing to buy Inconel 718 often require fast access to certified materials with dependable lead times. Delays in material supply can affect production schedules and project delivery.

City Special Metals maintains UK-held stock to support efficient supply across a wide range of industries and applications.

Our experienced team can assist with:

• Grade specifications
• Stock availability
• Certification requests
• Technical enquiries

Whether you require small quantities for specialist projects or larger volumes for ongoing production, we provide responsive support and reliable supply throughout the ordering process.

Trusted Suppliers of Inconel 718

Choosing the right alloy supplier is about more than stock availability. Technical knowledge, quality control, and reliable delivery all play an important role in supporting modern engineering projects.

City Special Metals combines specialist alloy expertise with responsive service and fully certified materials to support customers across demanding industries.

From Inconel 718 bar stock to Inconel 718 sheet / plate and precision-machined components, we provide practical solutions backed by industry experience and trusted quality standards.

Our team continues to support engineers, procurement managers, and manufacturers with dependable supply and technical understanding across every order.