Advanced metallurgy well connected.
Engineered for critical wells.
TBX Nexxia combines TUBACEX's metallurgical expertise and R&D capabilities to develop high-performance CRA OCTG solutions and SENTINEL® premium connections for the most demanding well environments.
From alloy design and material selection to manufacturing optimization and product qualification.
Our integrated approach connects research, engineering and industrial execution to deliver reliable performance under challenging operating conditions.
A closer look at
every alloy
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01
Advanced material development
Tailored metallurgy for demanding well environments.
TBX Nexxia develops advanced CRA grades engineered to withstand challenging combinations of pressure, temperature and corrosive conditions, including high concentrations of chlorides, H₂S and CO₂.
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02
Process optimization
From material design to robust industrial performance.
Through extensive final-product sampling, statistical analysis and 6 Sigma methodologies, we evaluate mechanical-property variability and establish correlations between manufacturing parameters and product performance.
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03
Testing & validation
Proven performance in critical well environments.
Our testing programs combine microstructural and mechanical characterization with corrosion resistance evaluations, including localized pitting and crevice corrosion, SCC and SSC, supported by specialized laboratories approved by major end users.
Best in class in-house R&D laboratories.
From design inputs to field-proven connections
A design and validation workflow based on API Q1, from conceptual design and FEA verification to full-scale qualification testing.
- 01 Design inputsDefinition of design inputs and conceptual design for new connection families.
- 02 FEA verificationInternal FEA verification using anisotropic material definition (SENTINEL® Tech. Center).
- 03 Full-scale testingQualification as per API 5C5 / ISO 13679, up to CAL IV.
- 04 Coatings & finishRig-ready solution: special coating and eco lubricant, with reduced environmental footprint.
- 05 New applicationsSpecific testing protocols, such as CCS thermal and pressure cycling at -35 °C.
Superduplex qualified for CO₂ injection
Extensive corrosion testing of duplex and superduplex grades (125 ksi PSL 2, PREN > 40) under different impure CO₂ chemistry specifications, with controlled impurity concentrations and following end-user approval conditions — including crevice corrosion testing.
Explore our gradesWorking alongside our customers
From material selection to proprietary alloy development.
We work alongside customers to address specific well requirements and support reliable long-term performance.
Co-design and technical assistance
Materials engineering, project-specific testing and customer-oriented solutions through direct collaboration.
Product and technology development
Our R&D team is at the forefront of new products and technologies for the OCTG market, turning advanced metallurgy into the solutions tomorrow's wells will need.
Partnership for scaling-up
Industrial validation of new solutions in collaboration with customers, enabling excellence and reliability in the production process.
Engineered for the world's most demanding wells
From metallurgy to validated, trusted performance.
At TBX Nexxia we connect materials expertise, process engineering and rigorous testing to turn complex well requirements into qualified CRA OCTG solutions.