Difference Between Lined and Clad Pipes

Lined Pipe

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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

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.

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

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.

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

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