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  • Users: FYS
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  1. FYS

    SCRAPER LAUNCHER

    Is CS + Alloy 625 weld overlay required for SEAL AREAS of SCRAPER LAUNCHER in sour system ? or an alternative sealing material prefered ?
  2. FYS

    GRE materials for FLOW LINES with hydrocarbon well production fluid-Contain high H2S

    Can GRE materials to be used for buried and above ground FLOW LINES with hydrocarbon well production fluid Contain high H2S (> 3% H2S and Co2 >3%) problem due to permiation of gases through the pipeline wall?
  3. FYS

    Weld Overlay

    Is there any requirements for PWHT due to application of Weld Overlay (CS backing material + Alloy 625-3mm weld overlay) on piping, manifold?
  4. FYS

    CATHODIC PROTECTION OF DUPLEX STAINLESS STEEL

    Dear All, What is the upper/lower limit cathodic protection criteria for coated buried DUPLEX STAINLESS STEEL pipeline in soil. Thanks Best Regards
  5. FYS

    CATHODIC PROTECTION - PIN BRIZING

    Steve, Thanks for your reply. The possible liquid metal embrittlement , comes from the Zinc in the Brass? or other metal ?
  6. FYS

    Polypropylene (Modified - PP) field joint coating

    Polypropylene (Modified - PP) field joint coating, flame sprayed, 8mm thick, on epoxy (FBE). There is no adhesive layer between the FBE and the PP (the adhesive property comes from the PP?) the problem is the adhesion between the FBE and the PP in not good, easily comes off. The test was...
  7. FYS

    CATHODIC PROTECTION - PIN BRIZING

    Dear all, Can PIN BRAZING be made on the CAST IRON or DUCTILE IRON pipe? If so, what kind of pin brazing materials can be used. Also if pin brizing can be used for Stainless Steel pipeline? As there is Zinc in the stud materil (Stud -BRASS), would have effect on the Stainless Steel.
  8. FYS

    Polypropylene (Modified - PP)

    Polypropylene (Modified - PP) field joint coating, flame sprayed, 8mm thick, on epoxy (FBE). There is no adhesive layer between the FBE and the PP (the adhesive property comes from the PP?) the problem is the adhesion between the FBE and the PP in not good, easily comes off. The test was...
  9. FYS

    Buried Stainless Steel pipeline

    Dear All, For buried stainless steel pipeline, in possible corrosive environment (pitting/crevice corrosion/MIC), what type of corrosion prevention would you recommend? Thanks
  10. FYS

    CARBON RESISTOR (High Stability carbon Resistor).

    Thanks for your reply, I do not know about the metal film, metal oxide, and also does not to be very accurate. where can contact / I find the BTW (I not Familiar with the term)? BTW, there is a component forum which might be a better place for future questions like this.
  11. FYS

    Underground SS 304 or 316 tubing?

    Ed, The SS - 316 buried pipes in Japan, have CP? Regards
  12. FYS

    Underground SS 304 or 316 tubing?

    The SS - 316 buried pipes in Japan, have CP?
  13. FYS

    CARBON RESISTOR (High Stability carbon Resistor).

    Dear ALL, Please can you tell me which one of the Resistor are more stable (to be used as a shunt), Carbon Film Fixed Resistor or Carbon Composition Resistor for measuring the potential across the resistor, in order to calculate the current passing through (for sacrificial anode cathodic...
  14. FYS

    Mono Ethylene Glycol (MEG)

    Thanks, highly appreciated.
  15. FYS

    Mono Ethylene Glycol (MEG)

    Dear All Is the product corrosive to carbon steel with 20% water. Also what type of material should be used for the gasket for the flange. Thanks
  16. FYS

    316 SS - CORROSION in Stagnant Ground Water

    Is 316 SS, susceptible to pitting/crevice corrosion in stagnant groundwater at less than 30 deg C. with chloride in the range of 2000 ppm. Also possibility of MIC (SRB) corrosion in swampy.
  17. FYS

    Thermal Insulation of 316 SS, in Immersed condition

    Hi, Thank you very much for your reply. Due to difficulty of access in the pit and availability of the spraying equipment, can we just use a suitable coating for stainless Steel (such as Epoxy Coating) instrument units? Regards
  18. FYS

    Thermal Insulation of 316 SS, in Immersed condition

    Hi, Please advise, Thermal Insulation of instrument units (316 SS), in Immersed condition (High Water Table). The possibility of corrosion, due to differential concentration of oxygen (depletion of oxygen at fastener locations – tying strip) – CREVICE Corrosion, pitting and cyclic effect of...
  19. FYS

    Coating for 316 SS

    Hi, Please can you advise, a coating for 316 Stainless Steel (Instrument units) in Immersed / Buried Condition (High Water Table). For normal Temperature.
  20. FYS

    Coating of 316 SS in imerssed/buried condition (High Water Table)

    Hi, Please can you advise a coating for 316 Stainless Steel (Instrument Unit - normal Temperature) in immersed/buried condition (High Water Table.

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