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Failure of a braided stainless steel hose connector

  • R. P. Allwin
Case Histories

Abstract

Flexible water hoses are used as line connections from water supply plumbing to fixtures and appliances. The design configuration of these hoses varies; however, a common design involves an elastomeric liner surrounded by an outer reinforcement of braided stainless steel wire. These hoses are subject to rupture in service, traceable to the fracture of the braided wire reinforcement. The mechanism of failure involves localized corrosion of the stainless steel wire braid, a condition arising from the presence of water exterior to the hose. The following case of a ruptured water hose demonstrates this condition.

Keywords

austenitic stainless steel corrosion energy-dispersive spectroscopy failure analysis failure mechanism pitting scanning electron microscopy (SEM) 

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References

  1. 1.
    J.K. Nelson: Corrosion, vol. 13, Metals Handbook, 9th ed., ASM International, Metals Park, OH, 1987, p. 1175.Google Scholar
  2. 2.
    J.W. Oldfield and B. Todd: Mater. Performance, 29(12), 1990, p. 57.Google Scholar
  3. 3.
    R.M. Kain: “Crevice Corrosion Resistance of Austenitic Stainless Steels in Ambient and Elevated Temperature Seawater,” Paper 230, presented at Corrosion ’79, National Association of Corrosion Engineers, 1979.Google Scholar
  4. 4.
    D. Warren: “Chloride-Bearing Cooling Water and Stress Corrosion Cracking of Austenitic Stainless Steel,” Proc. 15th Annual Purdue Industrial Waste Conference, Purdue University, May 1960, p. 1.Google Scholar

Copyright information

© ASM International 2005

Authors and Affiliations

  • R. P. Allwin
    • 1
  1. 1.Engineering Design & Testing Corp.Houston

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