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
Block Steel Corp.
Skokie, IL | 847-966-3000Block Steel Corp, ISO/TS 16949 Certified, specializes in aluminized steel and is the country’s largest aluminized steel distributor. We also stock Aluminized Stainless, Hot Dipped Galvanized, and distribute tubing.
Blue Blade Steel
Kenilworth, NJ | 908-272-2620Blue Blade Steel is a U.S. made spring steel manufacturer offering tempered steel services. We are also a steel manufacturer of custom strip steel for a variety of industries. We have state-of-the-art equipment, and believe in embracing new technologies. Seek when you need high product quality.
Hynes Industries
Youngstown, OH | 800-321-9257Here at Hynes Industries we offer a number of custom roll formed and standard roll formed products. With manufacturing experiences dating back to 1925 we have the background and skill to handle all of your requests. Simply contact one of our representatives to learn more information!
Benedict-Miller, Inc.
Kenilworth, NJ | 908-497-1477Aircraft-quality alloy steel in sheet and plate is available through Benedict-Miller’s steel service center. We meet AMS, ASTM and AISI specifications, and are ISO 9002-certified. We have our own in-house metallurgical laboratory. Benedict-Miller is a subsidiary of Blue Blade Steel.
Curtis Steel Co., Ltd.
Houston, TX | 800-749-4621Cold Rolled Steel is a mill product made with a high degree of gauge accuracy and uniformity of physical characteristics. The smooth deoxidized matte finish gives an excellent base for paint, lacquer and enamel. Box annealing and absence of scale permit stamping and moderate drawing operations. Sheets bend flat on themselves without cracking. Our Cold Rolled sheet and coil conform to ASTM A1008.
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.