9Cr-L80

Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. Used in wells with carbon dioxide environments.

Available in casing dimensions of 114.3 mm (4.5") to 339.7 mm (13.38")

Available in tubing dimensions of 60.3 mm (2.38") to 114.3 mm (4.5")

Product Group: 
OCTG and Linepipe

Chemical Composition

C Mn Mo Cr Ni Cu Ti P S Si V Al
Min - 0.300 0.900 8.000 - - - - - - - -
Max 0.150 0.600 1.100 10.000 0.500 0.250 - 0.020 0.010 1.000 - -

Mechanical Properties

Tensile Strength 655 MPa min 95,000 psi min
Yield Strength 552 MPa min 655 MPa max
  80,000 psi min 95,000 psi max
Total Elongation Under Load 0.500 % -
Hardness 23 Max HRC 241 Max HBW