Welding

Our welders excel in ASME/AWS Certified Steam Jacketed Assemblies and precision weldments, including projects such as jacketed piping and other pressure vessels, structural weldments, and custom tables.

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Kosmo Machine Welding Services

At Kosmo Machine, we specialize in precision welding for machined components with tight tolerances. Our team delivers high-quality weldments for complex and demanding applications, including:

  • Dissimilar metals for steam-jacketed high-pressure piping systems (up to 10,000 PSI).
  • Complex metal additive-manufactured components
  • Small footprint structural weldments up to 2,000 lbs.
  • Intricate component refurbishment of pressurized piping systems using GTAW weld overlay and subsequent re-machining of pressure boundary surfaces.
  • Custom “one-off” prototype weldments for unique projects.
  • Commercial (non-code) production welding services.
Industry Standards

Our welding program adheres to the following standards:

  • AWS D1.1 – Structural Steel
  • AWS D1.2 – Aluminum
  • AWS D1.6 – Stainless Steel
  • AWS D1.9 – Titanium
  • AWS D17.1 – Aerospace
  • AWS B2.1 – Procedure Qualification
  • ASME BPVC Section IX – Welding, Brazing & Fusing
  • ASME B31.3 – Process Piping
  • ASME B31.9 – Power Piping
  • NAVSEA S9074-AQ-GIB-010/248 – Weld Procedure Qualification
  • NAVSEA S9074-AR-GIB-010/278 – Fabrication Welding
  • NAVSEA T9074-AD-GIB-010/1688 – Submarine Structure
Material Expertise

Maintaining numerous documented and qualified weld procedures on file, Kosmo welds a wide range of materials, including but not limited to:

Aluminum, Stainless Steel, Duplex Stainless Steel, Precipitation-Hardened Stainless Steels, Monel, Inconel, Titanium, Nickel Copper, HY-80, Hard Face Overlays, exotic alloys, and various metal additive-manufactured materials.

Processes Performed
  • GTAW – Gas Tungsten Arc Welding
  • FCAW-G – Flux Cored Arc Welding
  • GMAW – Gas Metal Arc Welding (Short Circuit, Globular, Spray, and Pulsed Spray Transfer Modes)
  • Brazing
Quality
  • AWS Certified Welding Inspector on staff
  • Approved NAVSEA Welder Workmanship Training Program
  • Welders trained in NAVSEA standards
  • Annual vision testing to J1 standard, including color perception
  • Welder continuity program for certification compliance
  • Filler metal receipt and distribution control
  • Independent annual calibration of welding and test equipment
  • Approved third-party NDT suppliers for Level III services
Testing

In-house, we offer hydrostatic testing on Cylinders and other pressure-retaining weldments up to 10,000 PSI.

We also work closely with laboratories to provide the following destructive and non-destructive testing:

  • Leak Test
  • Dye Penetrant
  • Radiographic Inspection
  • Ultrasonic Testing
  • Vickers Hardness Testing
  • Visual Testing
  • Magnetic Particle
  • Bend Testing
  • Tensile Testing
  • Macro Etch Testing
  • Post-Weld Heat Treat