Stainless Steel 904L Pipes

Stainless steel 904L pipe is a high-alloy austenitic stainless steel known for its outstanding resistance to corrosion in aggressive environments. This grade is also referred to as SS 904L pipe or UNS N08904; it contains high levels of nickel (24–26%), chromium (19–21%), and molybdenum (4–5%), which offers superior protection against pitting and crevice corrosion. Its copper content further enhances resistance to sulfuric acid environments. Chemical processing, oil & gas, pharmaceuticals, desalination, and power-generating industries depend on this grade for demanding applications that standard grades fail to meet.

904L Stainless Steel Pipe Price

The price of 904L stainless steel pipe in India depends on the size, wall thickness, type, and order quantity. The following are essential pricing aspects to consider when purchasing.

Approximate price range

In India, SS 904L pipes are typically priced between INR 350 to INR 900 per kilogram, depending on the grade, form, and finish. Seamless pipes generally cost more than welded variants.

Four key elements affect the final price of SS 904L pipes. Raw material costs (nickel and molybdenum prices fluctuate globally), pipe type, wall thickness and schedule, and surface finish (pickled, polished, or mill finish) all of these directly change the cost per unit.

Available types of stainless steel 904L pipes

SS 904L pipes are available in seven different varieties, each with differing pressure, temperature, and application requirements.

• SS 904L EFW Pipes
• SS 904L Seamless Pipes
• SS 904L Welded Pipes
• SS 904L Round Pipes
• SS 904L ERW Pipes
• SS 904L Custom Pipes
• SS 904L Thick Wall Pipes

Stainless Steel 904L Pipe Specifications

SS 904L pipes comply with the required international standards and are available in various diameters, schedules, and finishes to meet different engineering requirements.

Chemical Composition Of Stainless Steel 904L Pipes

SS 904L pipes resist corrosion well, as they are manufactured with carefully controlled amounts of nickel, molybdenum, and copper.

Mechanical Properties Of Stainless Steel 904L Pipes

Stainless steel 904L pipes have good strength and can handle loads without failure. They also have enough flexibility to bend slightly without cracking, which helps in practical use. The following table consists of the mechanical properties:

Size Chart of 904L Stainless Steel Pipe

The size specifications of 904L pipes are given in the table below.

 Schedule Chart of Stainless Steel 904L Pipe

The schedule chart for SS 904L pipes is given in the table below.

Key Features of SS 904L Pipes

SS 904L pipes offer 6 standout properties that make them the preferred choice for challenging industrial environments.

• Corrosion Resistance
• High-Temperature Resistance
• Durability
• Ease of Fabrication
• Hygienic Properties
• Cost-Effectiveness 

Applications of Stainless Steel 904L Pipes

SS 904L pipes are deployed across 5 major industries where standard grades cannot withstand the operating environment.

• Chemical Processing
• Oil and Gas Industry
• Pharmaceuticals
• Desalination Plants
• Power Generation

How to Choose the Right SS 904L Pipe Supplier?

Choosing the right supplier directly impacts product quality, project timelines, and total cost. Evaluate 6 critical criteria before finalising any vendor.

Evaluate the manufacturer’s technical expertise

Check if the supplier has in-house metallurgical knowledge. This matters when selecting the right material for your use. 904L is not a basic grade, so handling needs experience. Ask if they have worked with 904L before and how they manage annealing and heat treatment. If they cannot explain their process clearly, it is a concern.

Check grade availability and product range

A reliable supplier should offer all 7 types of SS 904L pipes. This includes different forms, sizes, and schedules. If the range is limited, you may have to adjust your requirement, which is not always acceptable. It is better to confirm availability upfront instead of adjusting later.

Verify quality certifications and testing capabilities

ISO 9001 certification is a basic requirement. Apart from that, check if testing is done in-house. Common checks include hydrostatic testing, ultrasonic testing, PMI, and hardness testing. Also, ask for mill test reports. These should show full traceability of the material. If documentation is incomplete, avoid moving forward.

Examine the strength of raw material sourcing

The final pipe quality depends a lot on the raw material. Ask where the supplier gets their coils or billets from. The mills should be approved and certified. Some suppliers keep a regular stock of 904L raw material, which helps maintain consistency. If sourcing is irregular, quality may vary between batches.

Assess customisation capabilities

In many cases, standard sizes are not enough. You may need cut lengths, bevel ends, or specific surface finishes. A supplier with in-house facilities for cutting, threading, or polishing can handle this faster. It also reduces dependency on third parties.

Review delivery timelines and supply capacity

Check stock availability and how fast they can dispatch. At Metline Industries, a ready stock of SS 904L pipes is maintained for quick supply within India and for export. Still, confirm lead times, minimum order quantity, and export documentation before placing the order. Small delays at this stage can affect the full project schedule.