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  1. rehfeld

    Martensitic Bolts, ASME allowables

    Hey Everyone, I have what seems to be a fairly simple question. If I have martensitic precipitation-hardening stainless steel bolts, which ASME subsection NF-3324.6 tension allowable should I use (it gives one allowable for austenitic and one allowable for ferritic)???
  2. rehfeld

    Martensitic Bolts, ASME Allowables

    Hey Everyone, I have what seems to be a fairly simple question. If I have martensitic precipitation-hardening stainless steel bolts, which ASME subsection NF-3324.6 tension allowable should I use (it gives one allowable for austenitic and one allowable for ferritic)???
  3. rehfeld

    A564 Type 630 Condition H1150 ferritic or austenitic??

    ASME gives values for the Design Stress Intensity value, Sm, in Table I-1.3 from Section III Division 1 for A564 Type 630 bolt material so I assume is commonly used. The question I am really asking is the allowables given in NF-3324.6 defines seperate allowables for ferritic (Su/2 for...
  4. rehfeld

    A564 Type 630 Condition H1150 ferritic or austenitic??

    Hey Everyone, I am using a stainless steel bolting material which is designated ASTM A564 Type 630, Condition H1150. I am qualifying it using the ASME BPV Code (Section III, Subsection NF) which has different allowables for ferritic and austenitic materials but I can't seem to find guidance...
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