API 5CT specifies the manufacture of OCTG pipes and couplings used in oilfield. Our company can produce different types of casing pipes, tubing pipes, couplings for casing and tubing pipes, and the raw steel pipes used for OCTG tubing pipes.
Specification
Standard | API 5CT latest edition |
Steel Grade/Material | H40/J55/L80/N80-1/N80Q/L80-13Cr/R95/C90/T95/C110/P110/Q125 |
Outer Diameter(OD) | 1.9”-4.5”(48.26mm-114.3mm) |
Wall Thickness(WT) | 0.125”-0.63”(3.18mm-16mm) |
Length | R1/R2/R3 |
Packing | Thread protector,black paint and bundling |
Type of thread | STC/LTC/BTC/OEM |
Section Shape | Round |
Technique | Seamless hot rolled |
Application | Used to make OCTG tubing pipes |
Place of Origin | China |
MOQ | 1 ton |
Transportation | 1.Sea port:Tianjin Xingang port,Qingdao port,Shanghai Luojing port →America,Europe,Africa,Middle East,India, Pakistan,Japan,Korea, Australia…(shipping) 2.Land port:Alataw pass port(Пограничный пункт “Алашанькоу”) |
Chemical Composition(%) | |||||||||
Grade | C | Mn | Mo | Cr | Ni | Cu | P | S | Si |
N80-1/N80Q | ≤0.03 | ≤0.03 | — | ||||||
R95 | ≤0.45ᶜ | ≤1.9 | ≤0.03 | ≤0.03 | — | ||||
L80 | ≤0.43ᵃ | ≤1.9 | ≤0.03 | ≤0.03 | — | ||||
L80-1 | ≤0.15 | 0.30~0.60 | 0.90~1.10 | 8.00~10.0 | — | — | ≤0.03 | ≤0.03 | ≤0.45 |
L80-13Cr | 0.15~0.22 | 0.25~1.00 | 12.0~14.0 | ≤0.25 | ≤0.35 | ≤0.03 | ≤0.03 | ≤0.45 | |
C90 | ≤0.35 | ≤1.20 | 0.25ᵇ~0.85 | ≤1.50 | ≤0.5 | ≤0.25 | ≤0.02 | ≤0.01 | ≤1 |
T95 | ≤0.35 | ≤1.20 | 0.25ᵇ~0.85 | 0.40~1.50 | ≤0.5 | ≤0.25 | ≤0.02 | ≤0.01 | ≤1 |
C110 | ≤0.35 | ≤1.20 | 0.25~1.00 | 0.40~0.15 | ≤0.99 | — | ≤0.02 | ≤0.01 | — |
P110 | ≤0.99 | — | ≤0.02 | ≤0.01 | — | ||||
Q125 | ≤0.35 | 1.35 | ≤0.85 | ≤1.50 | ≤0.99 | — | ≤0.02 | ≤0.005 | — |
Mechanical properties | |||||
Grade | Total elongation under load(%) | Yield strength(Mpa) | Tensile strength(Mpa) | Hardness (HRC) | Hardness (HBW) |
H40 | 0.5 | 276~552 | 414 | — | — |
J55 | 0.5 | 379~552 | 517 | — | — |
K55 | 0.5 | 379~552 | 655 | — | — |
N80-1/N80Q | 0.5/0.5 | 552~758 | 689 | — | — |
R95 | 0.5 | 655 | 724 | — | — |
L80 | 0.5 | 552 | 655 | 23 | 241 |
L80-1/L80-9Cr | 0.5 | 552 | 655 | 23 | 241 |
L80-13Cr | 0.5 | 552 | 655 | 23 | 241 |
C90 | 0.5 | 621 | 689 | 25.4 | 255 |
T95 | 0.5 | 655 | 724 | 25.4 | 255 |
C110 | 0.7 | 758 | 793 | 30 | 286 |
P110 | 0.6 | 758 | 862 | — | — |
Q125 | 0.65 | 862 | 931 | — | — |