Critical Service

For mild CO2 environment, provides a cost effective alternative to carbon steel for sweet corrosion, where CRA is not economically justified.
Relevant Grades: TN 55CS, TN 70CS, TN 75CS.

Mild Sour

API steel grades with improved resistance to SSC.
Relevant Grades: TN 80S, TN 90S,TN 95S.

Sour Service

Higher resistance to Sulphide Stress Corrosion Cracking.
Relevant Grades: TN 80SS, TN 90SS,TN 95SS, TN 100SS, TN 110SS,TN 125SS..

High Collapse

Designed for wells where high external pressures are anticipated, and collapse pressures higher that API values are required.

Relevant Grades: TN 80HC, TN 95HC, TN 110HC.

High Collapse & Sour Service

Designed for SS wells where high external pressures are anticipated, and collapse pressures higher than API values are required.

Relevant Grades: TN 80HS, TN 95HS, TN 100HS, TN 110HS, TN 125HS..

Improved Collapse

IC grades are API steel grades with improved performance - an excellent cost-benefit solution for less severe applications.

Relevant Grades: L80-IC, T95-IC, P110-IC, Q125-IC.

Deep Well

Where high strength with good ductility and fracture toughness are required.

Relevant Grades: TN 135DW, TN 140DW, TN 150DW.

Thermal

Designed for the production of high density oil under severe thermal service wells.

Relevant Grades: TN 55TH, TN 80TH.