FNS Pipeline Weld Overlay Pipe Manufacturers
Pipelines and fittings used in the oil & gas, petrochemical, and power generation industries are frequently exposed to corrosive and high-pressure environments. Conventional carbon steel pipes cannot withstand such conditions over the long term, while solid alloy pipes are often prohibitively expensive. Weld overlay technology provides a better solution—using a carbon steel base pipe with a corrosion-resistant alloy cladding layer.
As one of the leading weld overlay pipe manufacturers in China, FNS Pipeline focuses on producing high-quality clad pipes and fittings that deliver excellent resistance to corrosion, erosion, and high-temperature service.

Weld Overlay Equipment
What Are Weld Overlay Pipes?
A weld overlay pipe is a composite pipe manufactured by depositing a layer of corrosion-resistant alloy (CRA)—such as stainless steel, Inconel, or Hastelloy—onto a carbon steel or alloy steel base pipe. This process is also known as weld overlay cladding.
Base pipe: Provides mechanical strength and cost efficiency (typically carbon steel).
Overlay layer: Provides corrosion resistance and durability (CRA such as SS316L, 904L, Inconel 625).
This combination ensures extended service life and reduced maintenance costs, making weld overlay pipes the preferred choice for critical applications.
Why Choose Weld Overlay Pipe Manufacturers Instead of Traders?
When sourcing clad pipes, working with a reliable manufacturer is essential, because only manufacturers can guarantee:
Quality assurance: Direct production control ensures compliance with ASTM, ASME, and API standards.
Customization: Manufacturers can produce weld overlay pipes in different diameters, wall thicknesses, and alloy grades according to project specifications.
Competitive cost: Using a carbon steel base with a CRA overlay reduces cost compared to solid alloy pipes.
Shorter lead time: In-house production eliminates dependence on third parties, ensuring faster delivery.
By partnering with experienced weld overlay pipe manufacturers, you gain both technical support and guaranteed material quality.
Our Weld Overlay Pipe Manufacturing Capabilities
As a professional supplier, FNS Pipeline offers comprehensive weld overlay cladding solutions for pipes and fittings.
Materials: 304/304L, 316/316L, 321, 347, 904L, Duplex Stainless Steel, Inconel 625, Incoloy 825, Hastelloy C276.
Pipe Sizes: Outer diameter from 1″ to 48″, thickness up to 60 mm.
Cladding Methods: GTAW (TIG), SMAW, SAW, Laser Cladding depending on application.
Testing & Inspection: PMI, UT, RT, hydrostatic testing, NDT, 100% dimensional inspection.
Standards: ASTM, ASME, API 5LC.
Our advanced welding and cladding technologies ensure every pipe meets strict international standards.
Weld Overlay Pipes & Fittings We Supply
We manufacture a wide range of weld overlay products, including:
Each product can be fully customized to meet specific project requirements in offshore, refinery, and power plant applications.

Clad Flange
Applications of Weld Overlay Pipes
Thanks to their durability and corrosion resistance, our weld overlay pipes are widely used in:
Oil & Gas Pipelines: For sour service and high-pressure transmission lines.
Refineries & Petrochemical Plants: Handling aggressive chemicals and hydrocarbons.
Desalination Plants: Resistant to seawater corrosion.
Power Generation: Steam lines and boiler tubes requiring high-temperature resistance.
Chemical Industry: Transporting acids, alkalis, and other corrosive fluids.
Why Choose FNS Pipeline as Your Weld Overlay Pipe Manufacturer
Extensive Experience: As a subsidiary of Cowin-Welding, we bring over 20 years of welding expertise, with leading advantages in welding equipment and overlay technology. This makes us a trusted global supplier of weld overlay pipes and fittings.
Advanced Technology: Automated welding and overlay systems ensure precision and consistency.
Strict Quality Control: Every product is tested rigorously to meet ASTM, ASME, and API standards.
Global Supply Network: Exporting to Europe, the Middle East, Southeast Asia, and beyond.
Custom Solutions: Tailored manufacturing according to unique project requirements.
For critical piping systems that demand both strength and corrosion resistance, weld overlay pipes represent the most cost-effective and reliable solution. By working with an experienced weld overlay pipe manufacturer, your project benefits from advanced technology, proven quality, and long-term durability.
Looking for a reliable weld overlay pipe supplier?
Contact FNS Pipeline today to discuss your project requirements and request a competitive quotation. Our technical team will deliver the best cladding solutions tailored to your needs.