Materials, Sizes & Grades

A family of Corrosion-Resistant Alloys for high-pressure, high-temperature and sour wells.

Explore the grades

Metallurgical solutions designed to optimize operational uptime, ensure safety and mitigate environmental risks in the industry's most challenging wells.

As the energy sector demands greater reliability in increasingly complex environments, we focus on high-pressure, high-temperature (HPHT) and sour wells containing high levels of hydrogen sulfide (H₂S) and carbon dioxide (CO₂). Our proprietary alloys integrate chromium and nickel to maximize resistance to oxidation, humidity and chemical wear.

60years of experience in the Oil & Gas market
15CRA grades, from duplex to nickel-base alloys
65to160ksiyield strength
2⅜″to9⅝″OD size range
Material selection

The right alloy for every well condition

Corrosion resistant alloys for critical well conditions combining high concentrations of chlorides, H₂S and CO₂, low pH and the presence of free sulphur.

Duplex
Superduplex
Alloy 28
Alloy 825
Alloy G3*
Alloy G50*
Alloy C276
Austenitic-ferriticProviding optimized mechanical strength and crack resistance.
SuperausteniticSuperior protection against localized pitting and chloride stress corrosion.
Austenitic Ni-baseDelivering maximum thermal stability and resistance in highly acidic media.
Increasing H₂S, CO₂, chlorides and temperature

* Positive results in presence of free sulphur.

Grades

Find the right grade

Our technical team will recommend the best metallurgy based on your well operating environment.

Duplex

TX22

Microstructure
Austenitic-ferritic
UNS Number
S31803
Min. yield strength
65 / 125 ksi
OD size range
2-3/8" – 9-5/8"
Superduplex

TX25HP

Microstructure
Austenitic-ferritic
UNS Number
S32750
Min. yield strength
80 ksi
OD size range
2-3/8" – 9-5/8"
Superduplex

TX25NP

Microstructure
Austenitic-ferritic
UNS Number
S32750
Min. yield strength
125 ksi
OD size range
2-3/8" – 9-5/8"
Alloy 28

TX28

Microstructure
Superaustenitic
UNS Number
N08028
Min. yield strength
110 / 125 ksi
OD size range
2-3/8" – 9-5/8"
Alloy 825

TX825

Microstructure
Austenitic Ni-base
UNS Number
N08825
Min. yield strength
110 / 125 ksi
OD size range
2-3/8" – 7-5/8"
Alloy G3

TXG3

Microstructure
Austenitic Ni-base
UNS Number
N06985
Min. yield strength
110 / 125 ksi
OD size range
2-3/8" – 7-5/8"
Alloy G50

TXG50

Microstructure
Austenitic Ni-base
UNS Number
N06950
Min. yield strength
OD size range
Alloy C276

TXC276

Microstructure
Austenitic Ni-base
UNS Number
N10276
Min. yield strength
OD size range
Track record
+70,000tons

of CRA OCTG delivered in the last years to Oil & Gas global leaders.

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ServicesFrom material selection to running supervision in the field.
Technical support for product selection

The right material starts with the right metallurgy.

For additional information please contact our technical team.

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