Our seamless tube and pipe manufacturing facility has operated continuously since 1927. Since those humble beginnings, MST has become a global manufacturing force, providing cold-drawn carbon, alloy and high chrome mechanical and pressure tubing and piping for many industries.
Our 320,000 sq. ft. manufacturing facility has been entirely modernized to ensure unparalleled flexibility and enable us to accommodate large and small mill quantities and expedited deliveries. Every order is made to order and tested to your exact requirements and specifications. We even can assist with the often-complicated logistics of getting your order exactly where it needs to be domestically or internationally. We’re well-versed in all modes of shipping and transportation, and our export sales managers know the essentials of export regulations to ensure your order is exported smoothly.
Because we’ve designed our business to meet your businesses’ needs, MST has a long tradition of providing exceptional services, competitive pricing and incredibly quick turnaround. No matter what your need, every order is completed on time, every time.
Our Process
Every seamless pipe and tube manufactured by MST is cold drawn (cold finished) to our customers’ exact specifications. Each order goes through a series of precise steps and thorough testing in our state-of-the-art facility before being shipped on time, every time.
- Raw material in a broad selection of grades and sizes arrives at our state-of-the-art facility as solid, round billets.
- Each billet is heated in a rotary hearth furnace and indented in the exact center.
- The billet enters the rotary piercing mill where a hydraulic ram feeds the billet between heavy rollers that drive it over a piercing point, producing a tube hollow.
- While still hot, the tubes or pipes are reduced in size in a stretch reducing mill, which produces shells.
- After cooling, the shell is cold worked on a draw bench, which pulls it through the stationary die and over a mandrel. This process improves grain structure and surface condition; increases hardness; and reduces the product to the desired size and thickness within extremely close tolerances.
- When cold working is complete, each piece moves to the annealing furnace, where variations of temperature, time and number of cycles produce a wide range of hardness and tensile strength to meet the industry standards as well as customer specifications and requirements.
- Once straightened to desired tolerances, the product is cut to length.
- To ensure quality, the product is tested by eddy current and, if desired, by ultrasonic and/or hydrostatic test.
- Samples are cut per order and specification and then moved to our metallurgic laboratory for testing.
- A certified material test report is then generated for each order and the final products are packaged in bare bundles with metal straps for shipping.
- Cold-drawn tubes and pipes – which have received minimal handling to ensure excellent surface finish – are shipped.
- Tubes arrive at their destination – on time, every time.