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Abstract

The aim of this work was to assess the susceptibility of standard stainless steel tube grades and fittings to corrosion in worst case potable and related water environments. For this purpose, five stainless steel test circuits were constructed. These included a high chloride (HC), biocide (B), microbially induced corrosion (MIC), low chloride (LC) and control (water supply level) circuit. Each of the circuits incorporated a large number of testloops fabricated from 304 and 316 (thin-walled, BS 4127/2) and 316 (thick-walled, DIN2463) stainless steel tube. The testloops were assembled using a number of fitting/joining systems, including 304 and 316 stainless steel capillary fittings joined using solder, braze and adhesive fillers, 316 stainless steel and brass compression fittings, and 316 (thick-walled) stainless steel, Mannesmann press fittings. Copper capillary and polybutylene compression fittings were also included in testloops exposed in the B circuit for comparison purposes. The circuits were also used to assess the level of transfer of iron, nickel and chromium to the water.

Additional information

Authors: LEWUS M, British Steel, Swinden Technology Centre, Rotherham (GB);TUPHOLME K, British Steel, Swinden Technology Centre, Rotherham (GB);HOBSON S, British Steel, Swinden Technology Centre, Rotherham (GB);LEE B, British Steel, Swinden Technology Centre, Rotherham (GB);DULIEU D, British Steel, Swinden Technology Centre, Rotherham (GB)
Bibliographic Reference: EUR 17867 EN (1997) 184pp., FS, ECU 31.50
Availability: Available from the (2)
ISBN: ISBN 92-828-1882-9
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