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  • Users: rbrez
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  1. rbrez

    Name of German welding equipment supplier

    I am looking for a german company that supply fixtures to hold/clamp two large diameter(90"plus)tank shells together so their circumferencial seams can be welded. The name of the company was called HEINRUCHSGLUCK. Does anyone recognize this company name? Thanks rbrez
  2. rbrez

    Large Diameter Tank Welding fixture / positioner

    I am looking for names of companys that supply fixtures to hold/clamp two large diameter(90"plus)tank shells together so their circumferencial seams can be welded. The fixtures can clamp either internaller or externally. Thanks
  3. rbrez

    Stress relieving in China

    Does anyone know of companys in the Republic of China that can stress relieve a large steel pressure vessel -30 feet high by 20 foot diameter? Thanks
  4. rbrez

    Large variation in Charpy impact test results

    Without going into detail, is it normal for a high tensile steel (over 80,000 psi) to have a large variation of charpy impact test results of, ie - 10 to 120 ft-lbs?
  5. rbrez

    Heat number identification on steels plates

    The following heat number / identification markings were taken off some steel plate. Can anyone help me identify it? 75A679 287993 AAR-TC 128GRB USS I recognize the material - AAR-TC128 GRB. I think the Mill is US Steel I'm not sure of the meaning of the digits of the first two number...
  6. rbrez

    ASTM A105 availablity

    Does anyone know any supliers where I can get round bar (1" to 4") and hex bar (1" to 4")in ASTM A105? Thanks
  7. rbrez

    Alternatives to ASTM A105 for MSS-SP83 pipe unions

    MSS-SP83 for pipe unions specify the use of ASTM A105 for carbon steel material. We are finding A105 very hard to source. MSS-SP83 states that "Unions may be made from materials of other wrought material by agreement between the manufacturer and the purchaser but shall not be marked SP-83"...
  8. rbrez

    Threaded Pipe unions

    I have seen general dimensions for 1-1/2" 3000# SS threaded pipe unions with both the male and female ends with round ends. Has anyone seen general dimensions for the same fitting but with Hex ends and what the dimenions of the Hex would be? Thanks
  9. rbrez

    Defining acceptable Delta ferrite amounts in 316L SS

    Recently I had a corroded section of 316L SS analysed by a lab who did a chemical analysis and microexamaination on the metal. They found the material's chemical composition within ASTM standards but the nickel was at minumum 10%. The microexamination found the material to have excessive...
  10. rbrez

    Bathtub ring corrosion in 316L SS tank

    We have a 316L SS mobile tank that we recently found with horizontal lines (relating to product level) of - Heavy "rust" stains about 1/8" wide by a couple of inches to a couple of feet long - deep corrosion 1/8" wide, up to 1/8" deep by a 1/4" to a couple of...

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