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L80-9Cr L80-13Cr API 5CT Corrosion Resistant Tubing | CRA OCTG Pipe
- 9% / 13% chromium alloy design, excellent resistance to CO₂ and H₂S corrosion
- L80 strength grade, maintains good mechanical performance in corrosive downhole environments
- Effectively extends tubing service life in acid gas and high salinity production wells
- Standard API tubing threads, compatible with conventional wellhead connection systems
- Suitable for sour gas wells, geothermal wells and high-corrosion oil & gas production
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Product Overview
L80-9Cr and L80-13Cr are corrosion-resistant alloy (CRA) OCTG grades in API 5CT system, specially designed for acid gas wells, high salinity production wells and geothermal wells with CO₂ and H₂S corrosive environments. By adding 9% or 13% chromium element, a dense passivation film is formed on the pipe surface, which greatly improves corrosion resistance and significantly extends service life compared with conventional carbon steel tubing.
Both grades maintain L80 grade strength level and are supplied in quenched and tempered condition. They are manufactured by seamless hot rolling + cold finishing process, produced in strict accordance with API Spec 5CT and ISO 11960 standards. Common tubing outer diameters include 2-3/8″, 2-7/8″, 3-1/2″ and other conventional production tubing sizes. Thread forms adopt standard EUE / NUE, and premium air-tight threads can also be provided for high-sealing requirements. Standard lengths are R1 and R2, and custom fixed lengths are available.
L80-9Cr / L80-13Cr corrosion resistant tubing is widely used in sour gas fields, acid oil wells, high salinity water injection wells, geothermal wells and CO₂ injection projects. Each batch undergoes strict corrosion performance test, dimensional inspection and thread inspection, and is delivered with special Mill Test Report including corrosion resistance indicators.
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FAQs
L80-13Cr is 13% chromium corrosion resistant alloy tubing, mainly used for acid gas wells with CO₂ and H₂S, high salinity production wells and geothermal wells to extend service life.
13Cr has higher chromium content and better corrosion resistance, suitable for more severe acid gas environments. 9Cr is more economical and can meet light sour service requirements.
Yes. 13Cr alloy has good high temperature oxidation resistance and corrosion resistance, and is widely used in geothermal well production strings.
We can provide CO₂ corrosion test, SSC sulfide stress cracking test and other corrosion performance tests according to customer requirements.
Standard sizes take about 10-15 working days. Custom sizes or premium connections require 15-20 working days.
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