With the increase in technological advances, lined and clad materials are getting popular in Process industries. By combining two materials, we can get the advantage of the two materials at a low cost. In this lecture, I will teach you about lined & clad materials used in piping.

Lined Pipe

The lined pipe has a Mechanical bonding between pipe and line material.

  • By applying a lined material to a carbon steel pipe, we can get the benefit of anti-corrosion property of lined material and the strength of carbon steel.
  • Commonly used lined materials are
    • PTFE
    • Rubber
    • Glass
    • FRP (Fiber reinforced plastic)

You can see the images of the lined pipe.

Image – PTFE India

Advantages of Lined Pipe

  • A lined pipe can withstand tough chemical environments
  • And Also offer an abrasion-resistant property with hard-lined material
  • It is a cost-effective solution for non-critical services

Disadvantages of Lined Pipe

  • Lined Pipe has a limitation of non-metal such as it cannot be used in high temperature and pressure services.
  • The lined pipe is manufactured in small length pipe spools hence, large no of flange joints in line, which increases maintenance costs and chances of leakages.

Clad Pipe

A clad pipe has a Metallurgical bond between pipe and cladding material

  • The cladding is done by an explosive bonding process or by welding clad material on a pipe
  • High-strength carbon steel materials are cladded with high corrosion-resistant metal to achieve cost benefits
  • Here you can see the clad pipe

Image – Butting.com

Piping Component Quiz – Test yourself, Take This Quiz

Unlock New Skills with Our Best Selling Online Courses

How to be an Expert in Piping Components for Oil & Gas Career - Training Course
Best Selling

How to be an Expert in Piping Components

Learn about Pipes, Fittings, Olets, Gaskets, Flanges, Bolting materials, valves, orifice flanges, Spectacle Blind, steam traps, and more.

29.99

Piping Components and Types of Valves Bundle - Training Courses
20% Discount

Piping Components and Types of Valve Bundle

Learn about Types of Piping Components and Types of Valves in this Course Bundle.

48.99

59.99

Advantages of Clad Pipe

Clad carbon steel can withstand tough chemical environments.

  • A clad pipe can be used in high temperature and pressure services
  • It is cost-effective for critical services as carbon steel can be used with a cladding of exotic materials.

Disadvantages of Clad pipe

  • Fabrication of clad material is difficult, a special skill required for welding.
  • Clad pipes are costly compared to lined pipe

Summary – Difference Between Lined and Clad Pipes

Lined Pipe Vs Clad Pipe
Lined Pipe Clad Pipe
Use Non-metallic Material for lining Use Metallic Material for cladding
Mechanical bonding with adhesive Metallurgical bonding with welding or explosion bonding
Preferred in low pressure and temperature application Use in all high pressure and temperature application as well
Fabrication is easy as mostly bolted joints Fabrication is complicated due to dissimilar welding.
Less costly Costly

About Author

Varun Patel, B.E – Mechanical, PMP®

19+ years of experience in the oil and gas sector, specializing in project management, contracts, project control, project coordination, QA/QC and inspection of large-scale Greenfield and Brownfield Projects such as Refinery, Petrochemical, Wellhead production, and Process platform. Proven track record of delivering large-scale projects while ensuring adherence to safety and quality standards. Skilled in leading and mentoring cross-functional teams and resolving technical issues to achieve successful project outcomes.