|
Product Name |
SEAMLESS STEEL PIPE |
|
Material |
16Mn,10#,20#,Q235,Q345 ST52 A106GRB etc |
|
Standard |
ASTM A500 GRA GRB ,ASTM A53GRB ETC . |
|
Outer Diameter (OD) |
1/8”-48” |
|
Length |
6-12M Length per piece pipe . |
|
Wall Thickness (WT) |
2.5-200MM |
|
Package |
In bundles, Painting, Beveled edges, plastic caps ends, or as buyer's request. |
Product Description
| production name | API 5CT grade N80 steel casing pipe price |
| OD size (in) | 4-1/2" ~ 20" |
| grade | J55/K55/N80/L80/P110, |
| thread type | LC,SC,BC |
| Leighths | R1 (4.88mtr-7.62mtr) R2 (7.63mtr-10.36mtr) R3 (10.37mtr-14.63mtr) |
| heat treatment | Normalized,Quencher+Temper |
It is widely used in the cementing projects to serve as the structural retainer for the wall of oil and gas wells or wellbore. It is inserted into a well bore and cemented in place to protect both subsurface formations
and the wellbore from collapsing and allow drilling fluid to circulate and extraction to take place.
The main steel grade of API 5CT: API 5CT J55, API 5CT K55, API 5CT N80, API 5CT L80, API 5CT P110. This International Standard is applicable to the following connections in accordance with ISO 10422 or API Spec 5B:
short round thread casing (STC);
long round thread casing (LC);
buttress thread casing (BC);
extreme-line casing (XC);
non-upset tubing (NU);
external upset tubing (EU);
integral joint tubing (IJ).
For such connections, this International Standard specifies the technical delivery conditions for couplings and thread protection. For pipes covered by this International Standard, the sizes, masses, wall thicknesses, grades
and applicable end finishes are defined. This International Standard may also be applied to tubulars with connections not covered by ISO/API standards.
API 5CT P110/L80/N80/K55/J55 Casing Steel Pipe Chemical Composition
| Grade | C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≤ | Ni≤ | Cu≤ | Mo≤ | V≤ | Als≤ |
| API 5CT J55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT K55 | 0.34-0.39 |
0.20-0.35 |
1.25-1.50 |
0.020 |
0.015 |
0.15 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT N80 | 0.34-0.38 |
0.20-0.35 |
1.45-1.70 |
0.020 |
0.015 |
0.15 |
/ |
/ |
/ |
0.11-0.16 |
0.020 |
| API 5CT L80 | 0.15-0.22 |
1.00 |
0.25-1.00 |
0.020 |
0.010 |
12.0-14.0 |
0.20 |
0.20 |
/ |
/ |
0.020 |
| API 5CT J P110 | 0.26-035 |
0.17-0.37 |
0.40-0.70 |
0.020 |
0.010 |
0.80-1.10 |
0.20 |
0.20 |
0.15-0.25 |
0.08 |
0.020 |
API 5CT P110/L80/N80/K55/J55 Casing Steel PipeMechanical Properties
|
Steel Grade |
Yield Strength (Mpa) |
Tensile Strength (Mpa) |
|
API 5CT J55 |
379-552 |
≥517 |
|
API 5CT K55 |
≥655 |
≥517 |
|
API 5CT N80 |
552-758 |
≥689 |
|
API 5CT L80 |
552-655 |
≥655 |
|
API 5CT P110 |
758-965 |
≥862 |
