The process of creating metal tubing involves a complicated multistep process that begins with slitting metal sheet and ends with inspection and packaging. Along the way, the tubing supplier must maintain tight control over both inner and outer tubing dimensions and other physical properties. For a tubing manufacturer such as K-Tube Technologies (Poway, CA), the process also requires expertise with a range of different metals, including precipitation-hardened stainless steels; 300-series austenitic stainless steels; 400-series ferritic stainless steels; cobalt-chromium alloys; high-temperature alloys such as Hastelloy and Inconel; and glass-sealing alloys such as Invar and Kovar. The ISO 9626-certified vendor also performs a host of testing services, including breakage, stiffness, and corrosion testing; tensile, hardness, and surface-finish testing; and failure analysis.
In the following slide presentation, MPMN presents a detailed look at how metal tubing is made—from start to finish. Steps include: