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  • Users: Vikko
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  1. Vikko

    pipe made of E235+N (1.0308) strength at elevated temperature for EN 13445 (and PED)

    I need to use a seamless hot rolled pipe of material E235+N (1.0308) because that is what I found at the shop with the required dimensions. Here is a reference: http://www.steelnumber.com/en/steel_composition_eu.php?name_id=566 It is in the list of material of the standard EN 10305-4:2016...
  2. Vikko

    stud bolt vs stay bolt for API 661

    According to API 7.1.6.2.5 "Stay-bolts shall not be used." While it seems there is no problem using a "stud bolt", from other parts of the standard. I am not able to figure it out what should be the difference for API 661 of a stud bolt versus a stay bolt. I used to think they were synonyms for...

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