Ống vỏ API 5CT K55

API 5CT K55 Specification

  • Kích thước bên ngoài: 6.0mm -219.0mm
  • Độ dày tường: 1.0mm -30 mm
  • Chiều dài: R1 (4,88-7,62m), R2 (7,62-10,36m), R3 (10,36-14,63m)
  • Loại ren: Ren tròn ngắn, Ren tròn dài, Ren đệm
  • J55 Casing Tubing Steel Color Code: a bright green band
  • J55 Coupling Color Code: entire green coupling + a white band
  • Ứng dụng: Vận chuyển khí đốt, nước, dầu và khí tự nhiên.

API 5CT is a specification for casing and tubing for petroleum and natural gas industries-used for wells. This Standard specifies the technical delivery conditions for steel pipes (casing, tubing and pup joints), coupling stock, coupling material and accessory material and establishes requirements for three Product Specification Levels (PSL-1, PSL-2, PSL-3). Grade K55 Casing Tubing is an API 5CT oil ống vỏ and mostly utilized for oil well with varied end connections such as non-upset ends or an external upset end.

The API J55 casing and tubing have wide applications used in the shallow wells, geothermal wells, and water wells in the oil and natural gas fields. WLD steel is a leading API 5CT casing and tubing manufacturer and supplier, we provide not only a broad range of API 5CT K55 oilfield casing and API 5CT K55 tubing but also casing coupling, perforated pipe and more.

API 5CT K55 Chemical Composition

Độ cao C≤ Si≤ Mn≤ P≤ S≤ Cr≤ Ni≤ Cu≤ Mo≤ V≤
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 / /

API 5CT K55 Mechanical Property

Steel Grade Độ bền kéo (Mpa) Độ bền kéo (Mpa) Total elongation under load %
API 5CT K55 379-552 ≥655 0.5

API 5CT K55 Tolerance

Mục Độ dung lượng cho phép
Đường kính ngoài Thân ống D≤101.60mm ± 0.79mm
D≥114,30 mm + 1,0%
-0.5%

API 5CT K55 Size Chart

Đường kính ngoài Độ dày của bức tường Cân nặng Độ cao Có ren Chiều dài
trong mm kg/m lb/ft
4 1/2″ 114.3 14.14-22.47 9.50-11.50 K55 LTC/STC/BTC R1/R2/R3
5″ 127 17.11-35.86 11.50-24.10 K55 LTC/STC/BTC R1/R2/R3
5 1/2″ 139.7 20.83-34.23 14.00-23.00 K55 LTC/STC/BTC R1/R2/R3
6 5/8″ 168.28 29.76-35.72 20.00-24.00 K55 LTC/STC/BTC R1/R2/R3
7″ 177.8 25.30-56.55 17.00-38.00 K55 LTC/STC/BTC R1/R2/R3
7 5/8″ 193.68 35.72-63.69 24.00-42.80 K55 LTC/STC/BTC R1/R2/R3
8 5/8″ 219.08 35.72-72.92 24.00-49.00 K55 LTC/STC/BTC R1/R2/R3
9 5/8″ 244.48 48.07-86.91 32.30-58.40 K55 LTC/STC/BTC R1/R2/R3
10 3/4″ 273.05 48.73-97.77 32.75-65.70 K55 LTC/STC/BTC R1/R2/R3
11 3/4″ 298.45 62.50-89.29 42.00-60.00 K55 LTC/STC/BTC R1/R2/R3
13 3/8″ 339.72 71.43-107.15 48.00-72.00 K55 LTC/STC/BTC R1/R2/R3