API 5CT Casing

image

API 5CT Casing

Product Dimension: SMLS:Φ114.3-508mm (4-1/2” - 20”).

Thickness: 5.21-16.13mm.

Standard: API 5CT.

Grades: H40, J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, C90, R95, T95, C110, P110 and Q125.

Product Specification Level: PSL1, PSL2, PSL3.

Thread Type: BTC, LTC, STC, Premium connection and etc.

Length Range: R1, R2, R3.

Uses: Casing Pipe is widely used for fastening oil and gas well wall or borehold, with bigger diameter than tubing, including surface casings, technical casings and oil layer casings.

image
image
image

API 5CT Oil Casing Chemical Composition & Mechanical Properties.

Mechanical Properties:
Grade Type Total elongation under load (%) Yield strength (min) Yield strength (max) Tensile strength min Mpa Hardness Max (HRC) Hardness Max (HBW)
JS5 - 0.5 379 552 517 - -
KS5 - 0.5 379 552 655 - -
N80 1 0.5 552 758 689 - -
N80 Q 0.5 552 758 689 - -
L80 1 0.5 552 655 655 23 241
L80 9Cr 0.5 552 655 655 23 241
L80 13Cr 0.5 552 655 655 23 241
C90 - 0.5 621 724 689 25.4 255
C95 - 0.5 655 758 724 - -
T95 - 0.5 655 758 724 25.4 255
P110 - 0.6 758 965 862 - -
Q125 All 0.65 862 1034 931 - -