Description

Technical Parameters

Product Overview

Oil Pipe, also called petroleum pipe, is a special seamless steel tube dedicated to oil and gas upstream, midstream and downstream industries, manufactured strictly in accordance with API SPEC 5CT, API 5L and SY/T6194 standards. The whole production process includes billet heating, piercing, hot rolling, sizing, heat treatment, threading and full item inspection. Our product system covers oil casing, production tubing, long-distance transmission pipeline pipes, with mainstream steel grades J55, K55, N80, L80, P110 for selection. Homogeneous seamless metal structure eliminates weld leakage risks, reliable for high-pressure, corrosive oil-gas medium long-term delivery.

The characteristics of oil pipes are mainly the following:

1. Strong pressure-bearing capacity: Oil pipes generally need to withstand high pressure, so their pressure-bearing capacity is strong.

2. Good corrosion resistance: Oil pipes need to have good corrosion resistance when transporting corrosive liquids such as oil and natural gas.

3. Good abrasion resistance: Oil pipes need to have a certain level of abrasion resistance when transporting media to ensure long-term service life.

4. Good weldability: The oil pipe has good weldability and can be welded in a variety of connection methods for easy installation and maintenance.

Why Choose Our Oil Pipe?

One-stop petroleum steel pipe procurement

100% full inspection before shipment: Hydrostatic test, ultrasonic flaw detection, tensile & impact mechanical test guaranteed.

Professional thread processing workshop: Precise CNC threading, tight sealing after coupling assembly, zero leakage risk.

Global oil project delivery experience: Export standard pallet & steel frame packaging, complete customs clearance documents provided.

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Dimension Range

Outer Diameter	48.3mm ~ 508mm	Special large OD pipe customized
Wall Thickness	3.68mm ~ 33.32mm	Custom thick wall for ultra-high pressure well
Standard Length	6m – 12m single random / double random	Fixed cut length per project demand

Core Representative Mechanical Index (API 5CT Standard)

Grade	Min Yield Strength(MPa)	Min Tensile Strength(MPa)
J55	379	517
K55	552	655
N80	552	689
P110	758	862

Optional Surface Anti-Corrosion Treatment

Black anti-rust varnish for indoor storage
3PE / 2PE epoxy external coating for buried long-distance pipeline
Internal epoxy coating for clean crude transmission
Thread plastic protective cap, coupling anti-rust oil filling

Applications | Main Industry Scenarios

Onshore Oil & Gas Drilling Wells

Oil casing for well wall support, production tubing for underground crude & natural gas extraction, wellhead connecting pipes.

Long-Distance Oil & Gas Transmission Pipelines

API 5L seamless line pipe for cross-region crude oil, natural gas gathering and trunk transportation networks.

Offshore Marine Oil Platforms

High-strength anti-corrosion oil pipes for offshore well extraction, platform fluid circulation pipeline system.

Petrochemical Refinery Factory

High & medium pressure fluid delivery pipes for chemical raw material, fuel oil transmission thermal pipeline systems.

Construction & Municipal Engineering

High-pressure water, gas conveying seamless pipes for urban municipal pipeline network projects.

Common problems

The following common problems may occur during the use of oil pipes:

Corrosion problem: Oil pipes may be corroded when transporting oil and gas media, resulting in damage to the pipe.
Welding quality problem: The welding quality of oil pipes is very important, if the welding quality is not good, it will easily lead to oil leakage and other problems.
Wear problem: Oil pipes may be worn out during the use of oil and gas media due to friction, resulting in pipe breakage. leading to the breakage of the pipe.

why choose us?

Mass Spot Inventory: Large stock of J55/N80/P110 mainstream oil pipe specifications, delivery within 7-15 working days.

Full Custom Deep Processing: Threading, coating, fixed cutting, pallet integrated processing to save your secondary processing cost.

Professional Petroleum Technical Team: Provide grade selection suggestion according to well depth, medium corrosivity and working pressure.

Stable Global Logistics: Container & bulk vessel shipping to major oil-producing regions in Middle East, Central Asia, Southeast Asia.

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User Evaluation

We purchased P110 thick wall oil casing for deep high-pressure oil wells, stable yield strength data, complete API test certificates for oilfield acceptance.

Mr. Li Daqing

North China Oilfield Engineering Company

We adopt 3PE coated seamless oil pipeline for long-distance crude transmission, excellent anti-rust performance buried underground for two years without corrosion defects.

Ms. Elena

Saudi Arabia Petroleum Service Factory

We import J55 tubing for shallow gas well exploitation, uniform pipe wall thickness, no surface cracks after ultrasonic inspection, fast delivery cycle matching drilling schedule.

Mr. Abdullah

Saudi Arabia Petroleum Service Factory

FAQ

01.Why does oil pipe corrode during operation? How to prevent it?

Corrosion is mainly caused by sulfur, water and acidic components in oil & gas media. We can provide anti-corrosion coating treatment for pipes; users also need regular pipeline inspection and anti-corrosion protection maintenance.

02.How to solve wear and pipe breakage issues?

Select thicker wall thickness or alloy steel grades for high-abrasion medium; add inner anti-wear coating; avoid over-pressure operation beyond pipe rated parameters.

03.Do you provide free samples?

Small cut samples are free; buyers need to bear international courier freight cost.

04.What's your pipe packing method for sea shipment?

Bundled with steel strips, covered with waterproof plastic film; wooden pallet or wooden case packaging available as client's request to prevent rust & collision damage during transit.

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