Nucor Skyline

Rolled & Welded Steel Pipe

With our state-of-the-art machinery and high-quality materials, we produce rolled & welded pipe that meet your exact application needs. Rolled & welded pipe is made from sections of plate rolled into cans. The seam of the can is welded and then the individual cans are welded together to make the finished pipe.

Our manufacturing plants are located throughout the region with the ability to serve the needs of private and public projects. Contractors can contact one of our sales representatives to discuss the exact specifications needed for their rolled and welded steel pipe. Our team of experts can assist you with ordering the right rolled and welded pipe for your project needs. We ensure on-time delivery to keep you on track for your project completion.

Proudly made in the USA, our steel pipe can be manufactured to meet the design needs of your public or private project.

Properties of Nucor Skyline Rolled & Welded Pipe

  • Outside diameters up to 204 inches
  • Wall thickness up to 2.25 inches
  • Custom Lengths and Thicknesses
  • Custom Fabrication Services
  • In-house and Third-Party Testing Capabilities
  • Melted and Manufactured in the USA

Applications of Rolled & Welded Steel Pipe

Steel pipe offers mechanical and physical characteristics that make it one of the most versatile construction products available. As a structural element, steel pipe remains unrivaled when compared to alternate materials. The flexibility offered by the manufacturing process, quality control and low production cost makes rolled & welded pipe an ideal solution for our project partners.

Bearing Piles

Deep foundations are required when the shallow soils are not strong enough to support the loads from the structure. Pipe piles are commonly used in deep foundations and transfer the loads from building to stronger soil layers found deep underground. The loads are resisted through skin friction and point bearing. Pipe can be driven either open-ended or closed-ended, with points or plates. If driven with plates, the pipes can then be filled with concrete to add strength to the pile. Usually the money spent on plates, rebar, and concrete would be better spent on a larger, thicker pile. Pipe piles range in size from several inches to several feet in diameter and can be easily spliced to create piles hundreds of feet in length.

Drilled Shaft Casing

Pipe casing, temporary or permanent, is often required during the construction of drilled shafts. The casing is used to hold the hole open while the reinforcement cage and concrete are installed. The ability to inspect the bottom of the hole and the elimination of any variations in the diameter of the finished drilled shaft makes for a much higher quality, finished pile. In the “Standard Guidelines for the Design and Installation of Pile Foundations” ASCE recommends a factor of safety that is 38% higher on the structural capacity of drilled shafts without casing, than those with casing.

Structural Sections

The symmetry of pipe gives it the same bending strength, in any direction, which makes it an excellent product for the resistance of buckling. The stress required to buckle an axial member decreases with length. The radius of gyration has the opposite effect and increases the ability of a section to resist buckling. The W and HP sections have differnt radii of gyration (rx and ry) for the X and Y axes, while remaining constant for a pipe. The end result is that a pipe can take much higher loads for long, unsupported lengths.

Combination Walls

Large diameter pipes have high bending strengths and are often used in combination sheet pile walls. The combination of large diameter pipe piles and steel sheet piles, which is often referred to as combi-walls, pipe-z walls or king pile walls, makes a very efficient system. Like other combined walls, the king pile takes the majority of the load and the sheet pile transfers the load to the pipe and to the soil.

Threaded Micropile Casing

Micropiles are small diameter, bored cast-in-place piles, with most of the applied load being resisted by steel reinforcement. They are constructed by drilling a borehole, often using casing, then placing steel reinforcement and grouting the hole. Micropiles have a wide range of uses and are becoming a more mainstream method of supporting and resupporting foundations, seismic retrofits, stabilization of slopes and even earth retention. Micropiles are an ideal pile for complex sites where low vibration or low noise levels are required, or where limited access such as low headroom and drilling is difficult.

Mining

Mining operations take place far beneath the surface in hazardous conditions. Personnel, equipment and air shafts are all integral parts of the mine. Vertical pipe sections are often used to construct the shafts. The large range of diameters and thicknesses make steel pipe the material of choice for various shaft requirements. Some of the shafts are hundreds, if not thousands, of feet long and pipe can be supplied in sections with the ends prepped for splicing. Bracing rings can be used to keep the pipe thicknesses to a minimum.

Sign Poles, Towers, & Transmission Lines

Sign poles and towers are designed to resist large bending loads at the base of the structure. The availability and wide variety of thicknesses of large diameter pipe allow designers to pick the exact size needed to handle their particular project. Pipes can also be supplied in very long lengths, are simple to splice and easy to drill into hard ground. Reduction collars can facilitate the splicing of different diameters to make the design as efficient as possible.

Jacked & Bored Pipe

The placement of underground utilities is often done with jacked and bored pipe. Sections of pipe are pushed through the ground with hydraulic jacks between excavations or under a hill. The next section of pipe is then spliced onto the first and the jacking continues. Once the jacking is complete, the pipe is cleaned out to install the utilities. This allows the placement of utilities without extensive excavation which can disrupt roads, railroads, homes and businesses.

Sewer/Water Line Pipe

Welded steel pipe provides an effective method for transporting liquids, air, and gas. Steel Pipe is pound per pound stronger than any other type of line pipe. Pipe can be designed to handle both the internal and external pressures of most applications. Welded steel pipe offers many advantages, such as: strength, economy and ease of installation. Nucor Skyline is SPFA certified and manufactures hydrostatically tested pipe in outside diameters ranging from 10-3/4" – 90". Our production process utilizes a double submerged arc weld process in both spiralweld and rolled & welded pipe. Hydrostatically tested pipe lengths range from 30' – 60', wall thicknesses from 0.250" – 2.0" wall and produced to one of the following industry standards: AWWA C200/ASTM A139/ASTM A134.

Manufacturing Process

Rolled & welded pipe is one of the oldest processes of manufacturing steel pipe. This manufacturing process is utilized when the pipe wall thickness exceeds the capabilities of the high-frequency electric resistance weld (ERW) pipe and spiralweld pipe manufacturing processes.

Plate

PLATE

The raw material – pieces of flat steel plate – is received into our manufacturing plant.

cutting

CUTTING

A single flat sheet of steel plate is cut on a burning table using plasma or cutting gases. This plate is cut according to the required width and length for each individual can that will form the final product.

bevel

BEVELING

After the plate is cut, it is transferred to the beveling station where the plate edges are beveled and prepped for welding.

bending

BENDING

After beveling, the plate is transferred to the bending rolls. Nucor Skyline uses a 4-roll system to produce a true cylinder, also referred to as a can.

welding

WELDING

The can is then staged for longitudinal welding (Long Seam). During this process, the seam between the two plates is welded on both the inside and outside.

circumfirential welding

CIRCUMFERENTIAL WELDING

During this last step of the manufacturing process, cans are fit together using the submerged arc weld (SAW) process, according to customer requirements for specific lengths.

quality control

QUALITY CONTROL

Once the welding is complete, the finished pipe is visually inspected by Quality Control (QC) and, if required, Ultrasonic (UT) testing is performed to ensure the weld is defect-free.

finished pipe

FINISHED PIPE

The finished pipe is then removed and ready for delivery.

Case Study: Puerto Caucedo

Case Study: Puerto Caucedo

A port expansion project built with steel. 

Download Case Study

Pipe Brochure

Pipe Brochure

Learn about our comprehensive line of steel pipe products. 

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Technical Product Manual

Technical Product Manual

Get all the information you need about Nucor Skyline's complete line of steel foundation products. 

Download Product Manual

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300 Technology Center Way, Suite 450, Rock Hill, SC 29730
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