Key attributes about Petroleum Pipe

Petroleum Pipe Industry-specific attributes

Section Shape	Round
Surface Treatment	Hot Rolled
Tolerance	±1%
Oiled or Non-oiled	Non-oiled
Invoicing	by theoretical weight

Petroleum Pipe Other attributes

Place of Origin	Shandong, China
Alloy Or Not	Non-Alloy
Standard	API 5L、ASTM A106/A53、JIS G3454
Grade	Q235/Q345、API 5L X42-X80、N80
Delivery Time	15-21 days
Brand Name	Kehuan ISO 9001/API Q1 certified enterprise, with 20 years of experience in supplying oilfield pipe materials.
Application	Oil and gas transportation, drilling engineering, refining and chemical facilities It is applicable to onshore/offshore oil well casings, gas transmission trunk lines and refinery pipelines.
Special Pipe	API Pipe, Other, Thick Wall Pipe
Thickness	6-40mm
Length	12M, 6M, 6.4M,customized
Certificate	API , CE, BSI, SASO, JIS, ISO9001
Processing Service	Cutting
Grade	ASTM A106 A53 API 5L X42-X80, N80
Application	Fluid Pipe, Hydraulic Pipe, OIL PIPE
Product name	petroleum oil pipe line
Place of Origin	Shandong China
MOQ	5 Tons
Wall Thickness	6mm-70mm
Sample	Avaliable
Technology	Seamless Hot Rolled
Material	10#.20# 45# 16Mn
Payment	TT DP LC

What is Petroleum Pipe?

Petroleum Pipe (also known as an oil pipe) is a specialized pipeline used in the oil and gas industry for the transportation, extraction, and processing of petroleum products. It plays a critical role in various stages of the oil and gas supply chain, from wellheads to refineries and distribution networks.

Manufacturing Process of Petroleum Pipe

1. Raw Material Preparation

• Material Selection:
  • High-strength carbon steel (e.g., grades 10#, 20#, 45#) or alloy steel (e.g., 16Mn) is commonly used, meeting standards like API 5L, ASTM A106, or JIS.
  • Raw materials are sourced as billets (round steel bars) with diameters ranging from 50mm to 300mm, depending on the final pipe size.
• Quality Inspection:
  • Billets undergo chemical composition analysis and ultrasonic testing to ensure no internal defects.

2. Heating and Piercing

• Heating:
  • Billets are heated in a furnace to 1,100–1,250°C (2,012–2,282°F) to make the steel malleable.
• Piercing (Hot Roll Piercing):
  • Using a piercing mill (e.g., Mannesmann mill), a rotating mandrel pierces the heated billet from the center, forming a hollow tube (referred to as a “shell” or “bloom”).
  • The process creates the initial pipe shape with a rough inner diameter.

3. Sizing and Reducing

• Rolling Extension:
  • The shell is passed through a stretching mill or elongator to increase its length and reduce wall thickness. A mandrel is inserted inside the shell to shape the inner diameter.
• Sizing:
  • A sizing mill rolls the tube to achieve the desired outer diameter (OD) with precision. For smaller pipes, a reducing mill may further decrease the OD while maintaining wall thickness.

4. Heat Treatment

• Normalizing or Tempering:
  • Pipes are heated to 850–950°C (1,562–1,742°F) and air-cooled (normalizing) to improve mechanical properties (e.g., strength, ductility) and eliminate internal stress.
  • For high-strength grades (e.g., API 5L X65–X80), quenching and tempering (Q&T) may be used to achieve higher tensile strength.

5. Surface Treatment and Finishing

• Deburring:
  • Internal and external edges are smoothed to remove burrs from the manufacturing process.
• Cutting to Length:
  • Pipes are cut to standard lengths (e.g., 6m, 12m) or customized sizes using saws or laser cutters.
• Surface Cleaning:
  • Acid pickling or shot blasting removes rust and scale, followed by coating (e.g., epoxy, polyethylene) for corrosion resistance.

6. Quality Control Testing

• Dimension Inspection:
  • OD, wall thickness, and length are measured using calipers and laser scanners.
• Hydrostatic Pressure Test:
  • Pipes are filled with water and pressurized (e.g., up to 2,000 psi) to check for leaks.
• Non-Destructive Testing (NDT):
  • Ultrasonic testing (UT) or magnetic particle inspection (MPI) detects internal or surface defects.

Advantages of Petroleum Pipe

Petroleum pipes offer critical benefits for energy transportation, making them the preferred choice for large-scale infrastructure:

1. High Efficiency in Long-Distance Transportation

• Continuous Flow: Pipelines enable 24/7, uninterrupted transport of large volumes (e.g., millions of barrels of oil per day), outperforming trucks or railcars in consistency.
• Low Energy Consumption: Compared to other modes (e.g., tankers or trucks), pipelines require less energy per unit of fuel transported, as fluids move via pressure or gravity.

2. Cost-Effectiveness

• Long-Term Investment: While initial construction costs are high, pipelines have a lifespan of 50+ years, reducing maintenance and replacement costs over time.
• Economies of Scale: Large-diameter pipes (e.g., 48 inches) can transport massive quantities, lowering the cost per barrel compared to fragmented transport methods.

3. Safety and Reliability

• Contained System: Sealed pipes minimize the risk of spills, leaks, or accidents compared to open transport (e.g., tanker trucks).
• Monitoring Capabilities: Modern pipelines use sensors and SCADA systems to detect leaks, pressure changes, or tampering in real time.
• Robust Design: High-strength materials and corrosion-resistant coatings ensure durability in harsh environments (e.g., extreme temperatures, seismic zones, or offshore waters).

4. Environmental Benefits (Relative to Alternatives)

• Lower Emissions: Pipelines produce fewer greenhouse gases than trucks or ships, as they rely on minimal mechanical power (e.g., pumps) and avoid repeated fuel loading/unloading.
• Reduced Land Impact: Underground pipelines occupy less surface area than roads or rail networks, minimizing habitat disruption.

5. Versatility and Scalability

• Diverse Applications: Suitable for transporting crude oil, natural gas, refined products, or even slurry (e.g., coal mixed with water).
• Expandability: Existing pipelines can be upgraded (e.g., increased pressure) or extended with branch lines, adapting to changing energy demands.

6. Strategic and Geopolitical Significance

• Energy Security: Pipelines provide stable, domestic energy transport, reducing reliance on volatile international markets (e.g., oil tankers vulnerable to geopolitical conflicts).
• Infrastructure Development: They support economic growth by connecting remote production areas to urban centers or export hubs.

Our Service​

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At Kehuan, we pride ourselves on our expertise in the steel industry, where we meticulously craft and execute change management strategies that are uniquely customized to the specific nuances and demands of this sector. These strategies are not merely theoretical concepts but are seamlessly woven into the very fabric of our daily operations, ensuring a cohesive and effective approach.​

Our innovative and client – centric approach offers immediate, tangible benefits to our clients. Whether it’s streamlining production processes, optimizing supply chain management, or enhancing product quality, we focus on delivering solutions that make an immediate positive impact on your business. But our commitment doesn’t stop at short – term gains. We understand that in the highly competitive steel market, long – term success is key. That’s why we also lay a solid foundation for enduring advantages within your existing steel product portfolio. We work closely with you to identify growth opportunities, improve operational efficiency over time, and stay ahead of industry trends, ensuring your business remains competitive in the long run.​

Convenient Online Ordering​

We’ve revolutionized the ordering process in the steel industry with our user – friendly online platform. No longer do you have to deal with the time – consuming and often complex traditional ordering methods. With just a few clicks, you can browse through our extensive range of high – quality steel products, check their availability in real – time, and place your order. Our intuitive interface makes it easy for you to manage your orders, track their status, and receive timely updates, all from the comfort of your office or home.​

Transparent Pricing​

In an industry where price fluctuations can be a major concern, we believe in complete transparency. Our pricing model is straightforward and easy to understand. There are no hidden fees or unexpected charges. We provide detailed breakdowns of all costs associated with your order, including the base price of the steel products, any additional processing fees, and shipping costs. This way, you can make informed decisions and budget effectively, knowing exactly what you’re paying for.​

Hassle – Free Maintenance​

We understand that the proper maintenance of steel products is crucial for their longevity and performance. That’s why we offer a comprehensive hassle – free maintenance service. Our team of experienced technicians is on standby to provide regular inspections, preventive maintenance, and prompt repairs. We use the latest diagnostic tools and techniques to identify and address any potential issues before they become major problems, minimizing downtime and ensuring that your steel products continue to function at their best.​

Certified Industry Specialists​

Our team consists of certified industry specialists who have in – depth knowledge and years of experience in the steel industry. These experts are well – versed in the latest industry standards, regulations, and best practices. Whether you need technical advice, product recommendations, or assistance with complex projects, our specialists are here to help. They bring a wealth of expertise to every client engagement, ensuring that you receive the highest level of service and the most accurate and reliable solutions.​

Authentic Materials and Components​

Quality is at the core of everything we do. We source only the most authentic materials and components for our steel products. Our strict quality control processes ensure that every product that leaves our facility meets the highest standards of quality and durability. We work with trusted suppliers who share our commitment to excellence, and we conduct rigorous testing at every stage of the production process. This way, you can have complete confidence in the products you purchase from us, knowing that they are built to last and perform under the most demanding conditions.​

Why Us

• Unmatched Steel Expertise
• Dedicated to Your Specifications
• Premium Quality Materials
• Simplified Ordering Process
• On-Time Delivery, No Compromises