Non-API seamless OCTG HS110SS-3Cr CO2 resistant deep oil well casing tubing

Vanforge provides a complete range of steel grades for all kinds of oil and gas operations.

API steel Grades

Vanforge supply all API steel grades including all the additional Supplementary Requirements (SR) and/or Product Specification Levels (PSLs).

Proprietary steel Grades

We supply steel grades with performance properties that surpass those indicated by the API.

Grades with enhanced performance properties

Vanforge provides the following proprietary steel grades for superior mechanical properties:

High collapse

Deep well

Low temperature

High ductility

Thermal service

Grades for corrosive environments

To improve the corrosion resistance for the demanding conditions of particular oil and gas wells, Tenaris has developed a variety of proprietary steel grades that extend the life span of pipe products reducing corrosion rates:

Sour service

High collapse & Sour service

Critical service

Corrosion Resistant Alloys

Critical CO2 service

Our Critical Service grades offer a cost effective alternative in case of mild sweet corrosion.

An economical Alternative to CRA

Vanforge provides oil and gas customers the Critical Service (CS) proprietary steel grades to resist corrosion produced under the presence of CO2 where Corrosion Resistant Alloys are not economically justified.

Our offer of CS grades can be divided in two basic metallurgical designs, characterized by their Chromium content.

1%Cr steels are recommended for mild sweet corrosion, with low CO2 partial pressures and medium to high water cut.

3%Cr steels, micro alloyed to increase strength, also tolerate a higher amount of CO2 for milder conditions than the ones requiring martensitic stainless steels (Cr13).

CS are carbon steels designed for improved performance in these environments. The performance can be further improved when combined with Vanforge premium connections or a proper inhibitor program.

CS grades are also being used in water injection applications, as a good improvement for carbon steels, although retaining some of their limitations. The corrosion film, although not producing complete protection, provides a higher resistance level when compared with standard API L80 grade, always in combination with a proper water treatment in order to provide controlled dissolved oxygen levels in the injected water.

Seamless tubing without coupling

Seamless tubing with coupling

Production procedure