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  • Users: knowkeys
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  1. knowkeys

    Corrosion of Aluminium fittings in Seawater

    Has anyone got any experience of corrosion of Aluminium fittings in Seawater? I know that Aluminium is used in anodes, so would expect a sacrificial "reduction" over a period of time. The specific case is with Aluminium "ferrules" which terminate the end of wire ropes. The wire rope will be...
  2. knowkeys

    Corrosion rates of ASTM A106 Gr B in Seawater

    I have an uncoated pipe immersed in Seawater (Mediterranean Sea), 60m Water Depth. I have estimated the rate of corrosion to be .2 - .4 mm per year. Has anyone had experience of pipe in similar conditions. Can you confirm these rates or otherwise.
  3. knowkeys

    Ball valve body cavity corrosion

    I have an application where seawater may become trapped in the valve body cavity. The pipeline will be vacuum dryed and we want to avoid opening the valve to remove any trapped seawater. Has anyone had experience of this type of application and/or problems with this type of corrosion. A link...
  4. knowkeys

    Chloride Concentration on Pitting Resistance

    I was wondering if anyone has had any experience or can provide guidelines on an acceptable level of chloride. I have an application where a "super duplex" pipe (25Cr) with a pitting resistance number > 40 is exposed to seawater (not flowing) . The concentration of NaCl can be...

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