Inconel 718 Pipes

Inconel 718 pipe is a precipitation-hardened nickel-chromium alloy pipe, also known as Alloy 718 or UNS N07718, widely used in industries that demand high strength under extreme conditions. With a nickel content of 50–55%, it delivers exceptional resistance to oxidation, corrosion, and mechanical fatigue, even at temperatures up to 704°C (1300°F). Its ability to retain strength under thermal stress makes it a preferred choice in aerospace, oil and gas, and power generation. Manufactured under ASTM B983/ASME SB983, this alloy combines reliable weldability with outstanding service life.

Inconel 718 Pipe Price

The price of Inconel 718 pipe depends on multiple variables, from raw material costs to order size. Here is a breakdown of what to expect when budgeting for this alloy.

Approximate Price Range

In India, Inconel 718 pipe is priced between ₹3,000 and ₹7,500 per kilogram. Seamless pipes and higher-schedule variants cost more than standard welded forms. Prices shift with global nickel market movements, which directly affect this alloy's base cost.

Cost Per Foot (Approx.)

On a per-foot basis, costs typically range from ₹1,800 to ₹9,500, depending on pipe diameter, wall thickness, and surface finish. Heavier schedules like SCH 160 or XXS fall at the higher end of this range.

Factors Affecting Price

Raw nickel and niobium prices are the primary cost drivers. Additional factors include pipe schedule, outer diameter, surface finish (pickled vs bright annealed), certification requirements (NACE, PED), and minimum order quantity. Custom OD or wall thickness will add to lead time and cost.

Available Types Of Inconel 718 Pipes

Inconel 718 pipes are available in 6 distinct forms, each suited to specific pressure, fabrication, and service requirements.

Inconel 718 Pipe Specifications

The table below covers the manufacturing standards, dimensional range, and finish options for Inconel 718 pipe. Confirm exact requirements with the supplier before finalising an order.

Chemical Composition Of Alloy 718 Pipe

The chemical composition below defines the elemental balance that drives Inconel 718's high-temperature strength, corrosion resistance, and weldability. The 50–55% nickel combined with niobium and molybdenum is what sets this alloy apart from standard chromium-nickel grades.

Mechanical Properties of UNS N07718

These 4 mechanical property values define the structural baseline for Inconel 718 pipes under standard test conditions. Use these values as a reference for design calculations and material selection.

Size of Inconel 718 pipe

The table below lists standard OD, wall thickness, schedule designation, and weight per metre for Inconel 718 pipe, ranging from 1/4 inch to 8 inches.

Schedule chart of UNS N07718

The table below provides details of the UNS N07718 pipe schedule chart.

Key Features Of Inconel 718 Pipes

Inconel 718 pipes carry 6 performance characteristics that make them the preferred choice in extreme temperature and corrosive conditions.

• High-Temperature Resistance
• Corrosion Resistance
• High Strength
• Fatigue and Creep Resistance
• Weldability and Fabricability
• Non-magnetic

Applications of Inconel 718 pipes

Alloy 718 pipe is used across 6 key industries where high-temperature strength and corrosion resistance are non-negotiable.

• Aerospace Industry
• Oil and Gas Industry
• Power Generation
• Automotive Racing
• Marine Applications
• Medical and Chemical Instrumentation

How To Choose The Right Inconel 718 Pipe Supplier?

Choosing the right Inconel 718 pipe supplier directly affects delivery timelines, material quality, and project reliability. Evaluate these 6 criteria before placing an order.

Evaluate the manufacturer's technical expertise

Choose a supplier who clearly explains pressure ratings, ASTM B983 compliance, and how Alloy 718 differs from other nickel alloys. A technically capable supplier answers these questions without ambiguity.

Check grade availability and product range

Most suppliers stock only a few standard schedules. Check that your required OD, wall thickness, and schedule are available before changing your design.

Verify quality certifications and testing capabilities

Ask for mill test certificates, hydrostatic test reports, and PMI results. A reliable Inconel 718 pipe manufacturer will share these documents easily.

Examine the strength of their raw material sourcing

Pipe quality depends on the billets used in production. Check which primary mills supply the raw material, as inconsistent sourcing leads to variations in dimensions and chemical composition.

Assess customisation capabilities

Ensure the supplier handles non-standard schedules, bevelled ends, and custom lengths. Lead time and quality risk increase when these processes are outsourced to third parties.

Review delivery timelines and supply capacity

A reliable supplier should maintain enough stock to handle large and repeat orders quickly. The Piping Mart lists trusted suppliers who maintain standard Inconel 718 pipe sizes ready for fast delivery.