|Product name: API-5CT Seamless Casing||Grade: J55 N80 P110|
|Material: 34CrMo4,H40,J55, K55, N80,L80,M65,C90,T95,P110,Q125||Standard: API 5CT|
|Technique: Cold Drawn/Hot Rolled||Application: Oil Pipe|
|Outer Diameter: 114.3-762mm||Thickness: 2.87 - 30 mm|
|Special Pipe:API Pipe||Certification: API|
|Secondary Or Not:Non-secondary|
|Surface Treatment:Black,varnish||Section Shape:Round|
|Place of Origin: China (Mainland)|
Packaging & Delivery
Seaworthy, Steel Shelf, Iron Pallet or as per customer's requirement
Delivery Times:20-55 days
API-5CT Seamless TubingProduct Description
API 5CT/ ISO11960
H40/PSL.1, J55/PSL.1, J55/PSL.2, J55/PSL.3, K55/PSL.1, K55/PSL.2, K55/PSL.3,
N80(1)/PSL.1, N80(1)/PSL.2, N80(Q)/PSL.1, N80(Q)/PSL.2, N80(Q)/PSL.3
M65/PSL.1, M65/PSL.3, L80/PSL.2, L80(1)/PSL.1, L80(1)/PSL.3, L80(9Cr)/PSL.1, L80(13Cr)/PSL.1, C90/PSL.1, C90/PSL.2, C90/PSL.3, T95/PSL.1, T95/PSL.2T95/PSL.3
P110/PSL.1, P110/PSL.2, P110/PSL.3,
Q125/PSL.1, Q125/PSL.2, Q125/PSL.3,
Minimum Order Quantity
Outside Diameter Ranges
1.05 inch to 4 1/2 inch or 48.26mm to 114.3mm
4 1/2 inch to 30inch or 114.3mm to 762mm
According to API 5CT Standard
R1 (6.10m to 7.32m), R2 (8.53m to 9.75m), R3 (11.58m to 12.80m)
R1 (4.88m to 7.62m), R2 (7.62m to 10.36m), R3 (10.36m to 14.63m)
Type of End-Finish
P, I, N, U
P, S, B, L
Casing and tubing for Sour Oil and Gas Service must have a good anti-SSCC (sulfide stresscorrosion and cracking)
performance in the environment where hydrogen sulfide corrosion exists.After an indepth study, we has successfully
developed tubular goods of the Cr-Mo series for this purpose with good hardenability and tempering stability that when
tempering takes places at certain temperatures uniform and fine sorbite structures can be obtained. Their mechanical
properties can meet fully the requirements of corresponding grades and their anti-SSC performance is excellent by
regulating the chemical composition and adopting different heat treatment procedures.
1. Materials: The chemical compositions have been carefully determined to provide resistance to sulfide stress corrosion
as well as to insure complete through wall hardening.
2.Heat Treatment: Quenching and Tempering are conducted under rigid temperature control to assure homogeneous
physical properties and microstructures.
3.Micro Structure: These grades exhibit fully tempered martensite which is considered to be the most desirable for
resistance to sulfide stress corrosion cracking.
the predetermined maximum limit.
5. Sulfide Stress Cracking (SSC) Performance: Whole grades are designed for 85% or 90% SMYS in NACE condition.
Excellent SSC resistance has been achieved through rigorous, chemical composition, heat treatment, microstructure,
tensile properties, hardness and so on.
A full length non destructive inspection is performed in accordance with API 5CT for external and internal, longitudinal
and transverse defects with a standard notch depth equal to 5% of the specified wall thickness.