CRA Clad Pipe for Oil & Gas
Corrosion-resistant alloy protection for sour service, subsea, and long-distance transmission — at 30–50% lower cost than solid Inconel pipe.
The Challenge
Crude oil and natural gas contain sulfur, acid, and CO₂ that cause corrosion rates exceeding 1 mm/year in carbon steel. Sour service environments with H₂S accelerate pitting and stress corrosion cracking. Traditional stainless steel pipes are prohibitively expensive for long-distance pipelines and large diameters.
The ZONX Solution
DURACORE CRA clad pipe combines carbon steel strength (X60, X70) with corrosion-resistant alloy liners (316L, Inconel 825, Inconel 625) at 30–50% lower cost than solid alloy pipes. API 5LD certified. RSP™ metallurgical bonding ensures the liner stays bonded through welding, bending, and thermal cycling.
Typical Applications
- LNG export terminal, Southeast Asia — 28" DURACORE, 50 km subsea
- Sour gas transmission in H₂S environments
- Offshore platform and subsea piping
- CO₂ injection and sequestration pipelines
Recommended Products
Specifying pipe for an oil & gas project?
Our engineers analyze your media composition, pressure, and temperature to recommend the optimal CRA grade and pipe specification.
Talk to an Engineer