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Tubular Products Premium connections Steel Grades   Sour Service High Collapse Service High Collapse & Sour Service Deep Well service Critical Service Low Temperature Service Sucker Rods

Proprietary Steel Grades Tenaris has developed a broad range of steel grades to meet the most demanding well conditions, from severe sour environments to high external pressure conditions and deep wells. This section provides complete information on every grade, including yield strength, minimum tensile strength, maximum hardness and elongation. Tenaris Proprietary Grades SMYS [Ksi] 55 70 75 80 90 95 100 110 125 140 150 Sour Service       TN 80 SS TN 90 SS TN 95 SS TN 100 SS TN 110 SS       High Collapse Service       TN 80 HC   TN 95 HC   TN 110 HC   TN 140 HC   High Collapse & Sour Service       TN 80 HS TN 95 HS   TN 110 HS       Deep Well service                   TN 140 DW TN 150 DW Critical Service TN 55 CS TN 70 CS TN 75 CS TN 80 CR3   TN 95 CR3   TN 110 CR3       Low Temperature Service TN 55 LT     TN 80 LT   TN 95 LT   TN 110 LT TN 125 LT     API Grades Manufactured by Tenaris SMYS [Ksi] 40 55 65 80 90 95 110 125 Group 1 H40 J55 K55   N80         Group 2     M65 L80 CR13 C90 C95 T95     Group 3             P110   Group 4               Q125

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