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  1. DavidC247

    SA-564 type 630 H1150 & Code Case 2156-1

    Looking at both specifications SA-564 & SA-705 the material test direction is Longitudinal, the code case test requirement is Transverse. I have been advised that the UTS & Yield can still be maintained on larger diameter Bar, thus apply the ASME rules, my design stress could be defined, but the...
  2. DavidC247

    SA-564 type 630 H1150 & Code Case 2156-1

    I assume S17400 H1150 is used above 8" diameter, within the Section II Materials for 17Cr-4Ni-4Cu the forging spec is SA-705, this has the same limitation up to 8"?
  3. DavidC247

    SA-564 type 630 H1150 & Code Case 2156-1

    Hi AFG03082015, Firstly many thanks for your response, I fully agree, however within SA-564 type 630 H1150, it indicates that the reduction of area is minimum 50% but it has an applicable limit up to 8"(within the mechanical test requirement table). therefore I understand material up to 8"...
  4. DavidC247

    SA-564 type 630 H1150 & Code Case 2156-1

    I am intending to manufacture a Pressure Vessel Housing (cylindrical shaped over 4" Bore). I note that SA-564 type 630 H1150 requires a minimum reduction in area of 50% for material sizes up to 8". The material I intend to use is greater than 8" therefore am I correct in assuming when I conduct...

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