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  1. 180

    coatings/insulation

    The standard suggested to me also recomends mineral wool that has been processed with a phenol binder. Although the cellular glass really seemd to be the best option, I am struggling to source FOAMGLAS here in South Africa. We do have however the mineral fiber with the phenol binder. will...
  2. 180

    coatings/insulation

    Thanks for your response - it has been useful Does anyone know anything about sodium silicate containing insulation materials. The ASTM standard suggests that sodium silicate be added (somehow) which is a water soluble compound that retards SCC when austentic stainless steel pipe sections are...
  3. 180

    coatings/insulation

    I need to specify an insulation system for stainless steel pipes. In the past AISI 316 has been used but after some years in service, severe SCC has occured. I have specified the use of either SAF 2205 or 904L as suitable alternatives that are resistant to SCC. The pipes carry water at 85C...
  4. 180

    corrosion rate

    Thanks for your reply The water runs through the pipes quite slowley (I am waiting for the exact flow rate to be given to me). The Cl level is 31ppm and the temperature is 85 degrees C. There is also significant deposites of what I think is CaCO3 on taps and joins in pipes. The SS 316 has...
  5. 180

    corrosion rate

    I am looking for data for the corrosion rate of 316 and 317 stainless in water at 85 degrees C, and would like to compare this to nickel alloy, specifically hastalloy C. Does anyone know if this data is easily available in a handbook? The problem I am trying to solve is an alternative material...

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