API 5CT P110 Pipes

API 5CT P110 pipes are high strength casing and tubing products used in deep oil and gas wells where elevated mechanical loads and pressure conditions require higher strength. Amardeep Steel supplies P110 casing and tubing for demanding oilfield applications, including production casing in deep and extended reach wells. As an API 5CT Group 3 grade, P110 has a higher specified minimum yield strength than API 5CT N80 tubing, supporting applications where greater load carrying capacity is required. For sour service, see our API 5CT T95 pipes. Our range of seamless pipes and tubes includes additional grades for oilfield and industrial requirements.

Each shipment is supported by mill test certificates, relevant inspection records and dimensional verification to confirm compliance with the specified API 5CT requirements.

What Are API 5CT P110 Pipes?

API 5CT P110 is the only grade in Group 3 of the specification. It has a yield strength of 758 to 965 MPa and a minimum tensile strength of 862 MPa, which lets designers run thinner or lighter strings in deep wells where weight and pressure are high.

P110 is supplied as both casing and tubing. Its most common use is production casing, which has to hold the full pressure of the well during fracturing and production.

Why P110 Is Not Used in Sour Wells

P110 has no maximum hardness limit, and steel at this strength level is prone to sulphide stress cracking when hydrogen sulphide is present. For that reason P110 is kept for sweet wells. Sour wells at similar depths normally use T95 or another restricted yield grade.

API 5CT P110 Colour Code

P110 pipe is marked with one white band, and the grade is stencilled on every length with size, weight and heat number.

Heat Treatment of API 5CT P110 Pipes

All P110 pipe is quenched and tempered along its full length. Quenching hardens the steel and tempering brings it back into the required yield range while restoring toughness.

Applications of API 5CT P110 Casing and Tubing

• Production casing in deep and high pressure sweet wells
• Horizontal and shale wells that see high fracturing pressure
• Production tubing in high pressure gas wells
• Intermediate casing in deep wells

Testing and Documentation

Every order of API 5CT P110 pipe goes through the checks below at our testing facility or approved third party labs.

• Heat and product chemical analysis
• Tensile test for yield, tensile strength and elongation
• Charpy V-notch impact test
• Hydrostatic test on every length
• Full length drift test
• Ultrasonic or electromagnetic inspection of the pipe body
• Thread gauging, visual and dimensional inspection
• Third party inspection on request

Mill test certificates are issued to EN 10204 3.1, with 3.2 available on request. You can view our approvals on the certificates page.

Packing and Marking

Each length is stencilled with the manufacturer name, API 5CT, size, weight, grade, connection and heat number, and carries the API colour band for its grade. Threads are protected with steel or plastic thread protectors, and pipes are bundled or loaded loose with spacers depending on size. Read more about our packing and despatch process.