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API Steel Pipes | API 5L & API 5CT | Oil, Gas & Industrial Applications

API 5L and API 5CT steel pipes for oil, gas and industrial use

Our API steel pipes are complied with API 5L, API 5CT standard, providing good strength, high corrosion resistance and long service life for oil-gas and industrial applications. They are extensively utilized for pipelines, drilling, casing, tubing and engineering construction. 

Specifications

Standard Grade Type Outer Diameter (mm) Wall Thickness (mm) Length (m) Weight (kg/m)
API 5L X42, X46, X52, X56, X60, X65, X70 Seamless / ERW 21.3–660 2.3–25.4 6–12 Varies by size
API 5CT J55, K55, N80, L80, P110 Seamless / Welded 88.9–244.5 6.0–17.0 4–12 Varies by size
ROYAL STEEL GROUP STEEL PIPE (16)
royal steel pipe

Chemical Composition

Composition varies by grade. Typical ranges:

Grade C (%) Mn (%) Si (%) P (%) S (%)
X52 / N80 0.18–0.25 1.0–1.6 0.20–0.35 ≤0.025 ≤0.015
X65 / L80 0.20–0.28 1.2–1.7 0.20–0.35 ≤0.025 ≤0.015

Mechanical Properties

Grade Yield Strength (MPa) Tensile Strength (MPa) Elongation (%) Hardness (HB)
X52 / J55 360–380 460–580 20–25 180–220
X65 / N80 450–480 550–700 18–22 220–260
X70 / P110 490–520 620–760 15–20 250–300
ROYAL STEEL GROUP STEEL PIPE (16)

API 5L CARBON STEEL PIPES

We offer a full range of carbon steel products, from pipes to plates, coils to profiles, to meet the needs of your diverse projects.

API 5CT CARBON STEEL PIPES

We offer a full range of carbon steel products, from pipes to plates, coils to profiles, to meet the needs of your diverse projects.

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fpe api 5l steel pipe
3pe api 5l steel pipe
3pp api 5l steel pipe

Surface Finish

Our API 5L and API 5CT pipes can be supplied with various advanced surface treatments to enhance corrosion resistance and provide long service life, including:
Black Painting – a cost-effective corrosion protection for storage and transportation.
FBE (Fusion Bonded Epoxy) – a powerful anti-corrosion coating for pipeline protection.
3PE / 3LPE (Three Layer Polyethylene) – a multi-layer system of protection against corrosion and mechanical impact with high durability.
3PP (Three-Layer Polypropylene) – A stellar coating for harsh environments.
These processes allows safe handling, long-term durability, and dependable performance in oil, gas, and industry pipelines.

We offer a full range of carbon steel products, from pipes to plates, coils to profiles, to meet the needs of your diverse projects.

Applications

Key Features & Benefits

The importance or usability of our API 5L and API 5CT pipes in different applications is Allows that such applications include:

Oil and Gasline Transportation – Best suited for high volume oilline transportation over long distances and offers coatings for corrosion protection and service life enhancement.

Oilfield Drilling and Well Casing and Tubing – High strength oilfield drill pipe, well casing and tubing for oilfield drilling, well casings and tubing suitable for severe underground conditions.

Process and Pressurized Piping – Water, chemical and other process fluid piping with pressure in industrial environment where safety of industrial plant and leak-free operation is significant.

Structural Steel and Building Applications – Structural steel pipe can also be used for building, structural work or any architectural applications in which strength and durability are important.

Such diverse applications are the reason why API steel pipes are the preferred solution even in highly demanding projects within the energy, engineering and industrial arena.

api 5ct t95 seamless steel tube application (1)
API 5CT STEAMLESS STEEL PIPES ROYAL GROUP (2)

High Strength, Corrosion Resistance and Long Service Life - Our steel pipes can meet the requirements of high pressure, high temperature and strong corrosion, which can be used in pipelines and other industries for a long time.

Manufactured To The API 5L/API 5CT Standard - Compliant with international standards, suitable for worldwide projects with uniform quality, mechanical properties, and safety.

Seamless / Welded - We supply seamless and welded pipes for various project needs and industry applications such as high pressure oilfield production or large volume petroleum solutions.

Good For Oil, Gas, And Industrial Projects Around The Globe – Used and reliable in oil & gas pipelines, well casing, chemical transport and industrial fluid systems, great for global energy and infrastructure projects.

Custom Lengths And Diameters Available Upon Request – Our custom lengths and diameters options provide tailored solutions that facilitate reduction of welding and installation at the site, enhancing project efficiency.

 

We offer a full range of stainless steel products, from pipes to plates, coils to profiles, to meet the needs of your diverse projects.

Chinese Factories

13+ Years of Foreign Trade Export Experience

MOQ 25 Tons

Customized Processing Services