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  1. Metalmeister

    Stud Welding

    When qualifying a stud welding procedure per AWS D1.1, using a particular manufacturer's equipment and set-up, may the subsequent stud welding WPS utilize any manufacturer's equipment with the same parameters? It is noted in ASME IX that a change in power source or stud gun model number...
  2. Metalmeister

    European Weld Process Number

    I have a couple of German welding procedure specifications that refer to weld process numbers 135 and 141. Based on the welding parameters, they are both spooled wire processes, running at 2-7 meters/minute, DC - positive polarity. 135 uses inert gas 100% Ar 141 uses "active" gas 99% Ar - 1%...
  3. Metalmeister

    DIN Welding Process Designation

    Would someone know what welding process numbers 135 and 141 refer to? Based on the welding parameters, they are both spooled wire processes, running at 2-7 meters/minute, DC - positive polarity. 135 uses inert gas 100% Ar 141 uses "active" gas 99% Ar - 1% Oxygen. Given that it is a positive...
  4. Metalmeister

    High Temp Elastic Modulus

    Would someone know of a source/link to data on the elastic modulus and Poisson's ratio for AISI 304 and Ductile Iron at 1400°F. Thanks.
  5. Metalmeister

    Pipline Cathodic Protection

    I inadvertently posted this to another question on the forum; so here it is again. I'm looking to protect a coated carbon steel pipe that carries seawater. In addition to the inside coating, the design calls for sacrificial anodes placed strategically on the inside, and an impressed current...
  6. Metalmeister

    Temperbead Overlay PQR

    Does anyone have knowledge or experience with temperbead overlay weld qualification per Code Case N638. Is it OK to treat this PQR depicted in the code case as a partial penetration groove weld and cut off the bottom at the fusion line and discard the bottom, and only side bending the portion...
  7. Metalmeister

    DIN specs

    I hate to ask this mundane question, but I've looked at previous threads and even looked at the "Worldwide Guide to Equivalent Irons and Steels" - wow is that book ever counter intuitive. Question: What is DIN EN 10216-2 or the closest thing to it in ASTM specs.
  8. Metalmeister

    Pipe Design - Length between Buttwelds

    Does anyone know of a Code reference or limit that specifies a minimum distance between pipe buttwelds such as 1.5D for example. I looked but can't find any such limit in B31.1 or ASME III. Maybe I missed it or it is covered in another piping code. Thanks and Merry Christmas/Happy Holidays to...
  9. Metalmeister

    Cathodic Protection

    What is a reasonable or expected service life of an underground carbon steel pipe used in electric transmission that is cathodically protected? I recently observed a pipe segment that was in the ground for over 25 years that looked brand new. Much existing underground transmission pipe cable...
  10. Metalmeister

    Corrosion of Admiralty Brass and Ti in Seawater

    A senior exec has asked me this question and I don't want to go back with an answer without checking first with water chemistry and corrosion experts on this site. At what concentration level of sulfate (SO4) in seawater will I have a corrosion issue in admiralty brass or titanium tubed...

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