Inconel 625 Pipes

Inconel 625 pipes are strong nickel-chromium alloy pipes, also called Alloy 625 or UNS N06625, designed for harsh conditions where high strength and reliability are required. These pipes provide exceptional corrosion resistance, high strength, durability, low maintenance, and reliable performance in high temperatures. Due to these features, Alloy 625 is used in the aerospace, marine, chemical processing, and oil and gas industries.

Inconel 625 Pipe Price

The price of Inconel 625 pipe is determined by elements such as size, thickness, and market demand, as this alloy is known for its excellent strength and corrosion resistance. It is often more expensive than standard steel pipes due to its nickel-based composition.

Approximate Price Range

In India, Inconel 625 pipe usually costs about ₹2,500 to ₹6,500 per kilogram, depending on its size and type. Custom sizes or higher grades may increase the cost further.

Cost Per Foot (Approx.)

On a per-foot basis, the cost can vary between ₹1,500 and ₹8,000, based on diameter, wall thickness, and finish. Larger and thicker pipes usually fall on the higher end of the range.

Factors Affecting Price

Several factors affect the price, such as the cost of raw materials (nickel), pipe specifications, production methods, certifications, and order quantity. The location of the supplier and fluctuations in the market might also affect the final cost.

Available Types of Inconel 625 Pipes

Inconel 625 pipes are available in 6 distinct forms, each suited for specific pressure, fabrication, and service requirements.

• Inconel 625 Seamless Pipe
• Inconel 625 Thick Wall Pipes
• Inconel 625 ERW Pipes
• Inconel 625 Welded Pipes
• Inconel 625 EFW Pipes
• Inconel 625 Round Pipes

Inconel 625 Pipe Specifications

The table below covers the manufacturing standards, dimensional range, and finish options for alloy 625 pipe as per ASTM and UNS specifications. Always confirm the exact requirements with the supplier before finalising an order.

Chemical Composition Of Alloy 625 Pipe

The values below define the elemental composition that drives the corrosion resistance, weldability, and high-temperature strength of alloy 625 pipe. The minimum 58% nickel combined with molybdenum and niobium is what separates this alloy from standard chromium-nickel grades.

Mechanical Properties of Inconel 625 Pipe

These 5 mechanical property values set the structural performance baseline for Inconel 625 seamless pipe under standard test conditions.

Inconel 625 Pipe Sizes

The table below lists standard OD, wall thickness, schedule designation, and weight per metre for Inconel 625 pipe, ranging from 1/4 inch to 8 inches.

UNS N06625 Pipe Schedules 

The schedule chart below maps IPS pipe sizes from 1/8 inch to 18 inches against available wall thickness schedules for alloy 625 pipe.

Key Features Of Inconel 625 Pipes

Inconel 625 pipes carry 8 performance characteristics that make them the preferred choice in extreme temperature and corrosive conditions.

• Outstanding Corrosion Resistance
• High Temperature Stability
• Superior Strength
• Excellent Fatigue Resistance
• Resistance to Oxidation
• Versatile Applications
• Ease of Fabrication
• Stress Corrosion Cracking Resistance

Applications of Inconel 625 Pipes

Alloy 625 pipe is used in 5 key industries where high-temperature strength and corrosion resistance are essential.

• Aerospace industry
• Chemical processing
• Oil and gas sector
• Marine engineering
• Power Generation and Pollution Control

How to Choose the Right Inconel 625 Pipes Supplier?

Choosing the right Inconel 625 pipe supplier directly affects delivery timelines, material quality, and project reliability. Here are the following criteria to evaluate before placing an order.

• Evaluate the manufacturer's technical expertise: Choose a supplier who clearly explains pressure ratings, ASTM B444, and how alloy 625 differs from other nickel alloys.

• Check grade availability and product range: Many suppliers stock only a few standard schedules. Confirm that the specific OD, wall thickness, and schedule you need are available before adjusting your design.

• Verify quality certifications and testing capabilities: Request mill test certificates, hydrostatic test reports, and PMI results. A reliable Inconel 625 pipe manufacturer will provide these documents without hesitation.

• Examine the strength of their raw material sourcing: The quality of pipes depends heavily 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 that the supplier handles non-standard schedules, bevelled ends, and customised lengths effectively. Lead time and quality risk are increased when these processes are outsourced.

• Review delivery timelines and supply capacity: A reliable supplier must have sufficient inventory and logistics to handle huge and repeated requests without delay. The Piping Mart provides a list of suppliers and manufacturers who offer standard Inconel 625 pipe sizes that are kept in stock for quick and reliable delivery.