JCOE Pipe

The JCOE process begins with the steel plate being cut to the desired size and then fed through a series of rollers to be formed into a "J" shape. The edges of the plate are then trimmed to be straight and parallel for welding. Next, the plate is formed into a "C" shape through additional steps on the forming machine, with some incremental corrections for ovality and straightness. Finally, the plate is expanded to form the final "O"-shaped pipe blank.

The JCOE forming process is known for its ability to produce large diameter pipes with thick walls, making them suitable for use in oil and gas pipelines, construction, and other structural applications.

Because it is a progressive multi-pass pressing, it must address the following questions: how to determine the die shape, the upper die and lower die stroke distance, and how much press pass in order to ensure the most appropriate bend radius and the best opening round hair tube.

But these issues with the steel plate, steel plants of different mechanical properties of concrete, pipe size (diameter and wall thickness), which in turn is very complex. Currently mainly by “trial and error”, that is, whenever replacement or new steel specifications, we take a certain number of sample pressure test, worked out the right amount of punch. Trial and error method is more reliable, but the efficiency is relatively low.

Specifications

• Throughput: 300,000 MT
• Outside Diameter :Φ406-Φ1829mm (16″-72″)
• Wall Thickness :6.0-25.4mm (1/4″-1″)
• Length :3-12.2m (10′-40′)
• Ouality Standards :API, BS, ASTM , JIS, DIN, GB , ISO, DNV
• Grades :GB/T9711 L190-L555(API 5L A-X80)

We are able to provide customers with quality products and perfect service.

JCOE manufacturing technology is developed in the 1990s as a pipe forming process, the process of molding process is the first major steel mill edge (or planing) after pre-bending by longitudinal side, and then type → J-→ C O-order molding, stamping each step are the basic principles of three-point bending.

JCOE manufacturing technology is developed in the 1990s as a pipe forming process, the process of molding process is the first major steel mill edge (or planing) after pre-bending by longitudinal side, and then type → J-→ C O-order molding, stamping each step are the basic principles of three-point bending. Because it is a progressive multi-pass pressing, it must address the following questions: how to determine the die shape, the upper die and lower die stroke distance, and how much press pass in order to ensure the most appropriate bend radius and the best opening round hair tube. But these issues with the steel plate, steel plants of different mechanical properties of concrete, pipe size (diameter and wall thickness), which in turn is very complex. Currently mainly by “trial and error”, that is, whenever replacement or new steel specifications, we take a certain number of sample pressure test, worked out the right amount of punch. Trial and error method is more reliable, but the efficiency is relatively low.

As more process parameters, only through trial and error method is quite cumbersome. In order to obtain a mature technology, and even a few months of trial and error process. And trial and error process is often a fixed shape and spacing of the die, only to explore the punch stroke, so the results obtained may not be optimal, there is no full unit capacity. System so it is necessary to study the factors affecting the shape, or even to establish a theoretical formula, developed with the experience of trial and error molding process, eliminating the need or less need to test, trial costs and reduce time and increase productivity.

The mill adopts continuous axis contorting J-C-O(J-ing, C-ing and O-ing)process with characteristics of high forming accuracy and efficiency as well as balanced distribution of forming stress.

JCOE pipes are large-diameter longitudinal steel pipes created using the JCOE forming process. Known for their high strength and durability, these pipes are widely used in demanding industrial applications like oil and gas transportation, structural supports in construction, and high-pressure fluid transfer. Their unique production process makes them ideal for environments that require reliable performance under heavy loads and pressure.

Product Features

• Manufactured using the advanced JCOE forming process for precise control and uniformity.
• Available in various diameters and wall thicknesses to accommodate different industrial needs.
• High tensile strength and excellent resistance to deformation and corrosion.
• Suitable for transporting oil, gas, water, and other fluids under high pressure.
• Consistent quality ensured through rigorous testing and quality control.

Product Benefits

• High strength-to-weight ratio, offering robust solutions for heavy-duty applications.
• Long service life, even in corrosive environments, reducing maintenance and replacement costs.
• Cost-effective for large-scale infrastructure projects due to efficient production techniques.
• Reliable performance under extreme pressure and temperature variations.

Uses and Applications

• Oil & Gas: Ideal for pipeline systems transporting oil and gas over long distances.
• Construction: Provides structural support for large buildings, bridges, and industrial facilities.
• Water Supply: Used in high-pressure water pipelines in municipal and industrial applications.
• Petrochemical: Ensures safe transport of chemicals and petroleum products in processing facilities.

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