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Custom Stainless Steel Pipe Bending Solutions

Stainless steel capillary tube
January 30, 2026
Category Connection: Stainless Steel Capillary Tube
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#Steel Capillary Tube #Stainless Steel Capillary #SS Capillary Tube
Brief: Curious about how this performs in practice? Join us for a hands-on look at the fabrication of custom 304 stainless steel tubing with integrated domed end sealing, diameter transitions, and precision bending. This video demonstrates the complete manufacturing process, from material selection and cold forming techniques to CNC bending and final quality inspection, showing how these complex one-piece components are created for demanding industrial applications.
Related Product Features:
  • Custom fabrication of 304 stainless steel tubing with integrated domed end sealing, diameter transitions, and precision bending in a single piece.
  • Cold forming processes including spinning/swaging for leak-tight hemispherical domes without welding.
  • Rotary swaging for precise diameter reductions up to 20-30% per step with tapered transitions.
  • CNC precision bending with minimum bend radius of 1.5x tube OD using mandrel support.
  • Stress relief annealing treatment to restore corrosion resistance and prevent stress corrosion cracking.
  • Multiple surface finish options including mechanical polishing, electropolishing, and passivation.
  • Comprehensive quality control with CMM dimensional verification and optional pressure/leak testing.
  • Suitable for food processing, architectural, fluid systems, medical equipment, and automotive applications.
FAQs:
  • What materials are used for these custom bent tubes?
    We use 304 stainless steel (AISI 304, UNS S30400) in annealed condition, suitable for cold working processes. The material comes with mill test certificates per EN 10204 3.1 standards.
  • How is the domed end sealed without welding?
    The domed end is created through cold forming processes like spinning or swaging, where the tube end is rotated and pressed against a forming die to create a smooth, hemispherical dome. This work-hardens the end, creating a strong, integral seal without requiring welding.
  • What quality control measures are implemented?
    Each part undergoes comprehensive inspection including dimensional verification using CMMs, visual inspection for surface defects, and optional pressure or helium leak testing for the sealed domed end. First Article Inspection with CMM report is standard procedure.
  • What applications are these custom bent tubes suitable for?
    These components are ideal for food and pharmaceutical processing equipment, architectural and furniture elements, fluid and pneumatic systems, medical and laboratory equipment, as well as automotive and marine applications where hygiene, strength, and custom form are essential.
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