MDC’s Vacuum Tubing – Weldable Components offer exceptional versatility for the construction of high and ultra-high vacuum systems. Fabricated from Type 304 stainless steel, each tube is hot-drawn and mandrel-welded, leaving a slight seam and a smooth matte finish ideal for vacuum sealing. Tubing is specified by outside diameter (O.D.) and wall thickness, with the inner diameter (I.D.) being a theoretical value (O.D. minus twice the wall). All pieces are saw cut to ±1/8” (±3.2 mm) and deburred. Tubes longer than 18 ft (5.49 m) are shipped as random lengths ±6" (±152 mm). Options for machined ends, electropolishing, and special finishes are available as custom orders.

Industry Applications

MDC’s weldable vacuum tubing is ideal for semiconductor processing, aerospace, energy research, synchrotron beamlines, accelerator facilities, and analytical instrumentation. Frequently used in vacuum chamber fabrication, manifold construction, and custom UHV system design, it supports both OEM equipment and experimental platforms. Its 450°C heat resistance and 1x10⁻¹⁰ Torr vacuum compatibility make it suitable for high-temperature bakeouts, plasma environments, and leak-tight welding applications. The tubing’s modular compatibility with Conflat®, ISO, and ASA flanges ensures seamless integration into complex assemblies requiring durability and vacuum integrity.