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23099 Connecticut Street
Hayward, CA 94545
Phone: 510-785-9148
Fax: 510-785-0466


Accredited Nadcap Welding



SF Tube Inc. offers weldment solutions that range from simple metal joining to large complex tube and duct assemblies requiring NDT testing. Our comprehensive staff of skilled welders and brazing system operators are up to the task on all of your projects. We work to customer specifications and drawings but can also assist in consultative design engineering.

Our metal joining process capabilities includes GTAW Welding, MIG Welding, Orbital Welding, Torch Brazing, and Induction Brazing across a variety of alloys made of carbon steels, aluminum alloys, stainless steels, nickel alloys, copper, titanium.

Welding Process Certifications

  • AWS D17.1:2001, GTAW Fusion Weld Process
  • AWS C3.4:1999, Torch Brazing
  • AWS C3.5M/C3.5:2007, Induction Brazing
  • AWS B2.2-91, Brazing Procedure and Performance Qualification

Bay Area Quality Management District

Permit# 14664 Operation of Vapor Degreaser