One of these types of tubing is called seamless tubing, where extrusion or rotary piercing is used during the production process. Read More…
Leading Manufacturers
Davis Steel Services
Hewitt, TX | 800-460-1005Davis Steel Services has a ready-to-ship inventory that is full of steel angles, beams, channels, flats, plate, sheet, expanded metal, floor plate, pipe, tubing and rounds and squares (hot rolled and cold finished). We will special order non-stock sizes, as well as aluminum and stainless steel pieces.
Venture Steel
Etobicoke, ON | 800-265-6811Venture Steel is a steel manufacturer and steel service center specializing in all types and grades of hot rolled steel, coated steel and cold rolled steel. Venture Steel's customer base ranges from automotive parts suppliers to building products manufacturers and more. We welcome your business.
State Line Supply Co.
Bradford, PA | 814-362-7433State Line Supply Co. is a leading provider of metal working services. Our large facilities allow us to carry a high volume of inventory, which in turn allows us respond quickly to orders. Since our founding more than 120 years ago, we have served the industry from our headquarters in Pennsylvania. Our services include metal shearing, plate burning, CNC Parts Machining. To see our catalog of products or to place an order for delivery, visit our website today.
Matandy Steel
Hamilton, OH | 513-844-2277Since 1987, Matandy Steel has been a leader in the steel service center industry. We serve various industries, including construction, automotive, office furniture, and agriculture. Our highly skilled expert team goes the extra mile to ensure all our products are high quality.
Seamless Tubing - Block Steel Corp.A seamless pipe is created by drawing a solid billet over a piercing rod to create a hollow shell. Most seamless tubing is pulled through a die that reduces its diameter in the final stages of manufacturing. This yields a strong product, and without any welding lines you are left with a tube that is less susceptible to corrosion and has no weak points in its structure.
To control the wall thickness, a plug is inserted into the tube while it is being drawn. This plug moves through the tube as pressure is applied, keeping the wall thickness even throughout the tube.
Seamless tubes are used in almost every industry, from construction to agriculture to healthcare. Many hand rails and guardrails are simply pieces of seamless tubing. A seamless tube is light and rigid so that it can easily be cut and installed in a wide variety of applications.
Steel is often used to create seamless tubes, but they are also made out of ceramic, fiberglass, other metals and even concrete or plastic. Obviously plastic is the most malleable of the materials, and this is most commonly used for applications where some flexibility in the tube is required.
Seamless tubes can be bent during manufacturing to create 90 degree angles if they are being fitted to a particular product. Plastic seamless tubing is becoming much more popular because it is light weight, chemical free and non-corrosive. It can easily be cut and connected for a wide variety of uses.
Tube sizes are measured based on the diameter on the outside of the tube. As pipes have improved, the walls have become thinner while still remaining strong, creating a larger internal diameter which allows for more flow. The primary advantage of using a seamless tube is that it is able to withstand a much greater amount of pressure because of the equal strength around the circumference. The seam in a traditional welded tube makes it much more vulnerable to bursting when high pressure volumes pass through it.
