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Recent content by kalmari

  1. kalmari

    Material test report

    Both certificates are validated by the manufacturer’s authorized inspection representative independent of the manufacturing department, but 3.2 certificate is validated in addition by either the purchaser’s authorized inspection representative or the inspector designated by the official regulations.
  2. kalmari

    Use of WB 36 pipes for boiler application

    See Code Case 2353 for Section I. Based on this Code Case you can use WB36-pipes (not plates!) but you have to purchase, design, weld, postweld heat treat etc. according to this Code Case. There are quite many special requirements for manufacturing when using this grade. Actually this material...
  3. kalmari

    Compensation calculation for flat unstayed heads as per ASME B31.1

    ASME B31.1-2012 says in paragraph 104.4.1 as follows: [i]"104.4 Closures 104.4.1 General. Closures for power piping systems shall meet the applicable requirements of this Code and shall comply with the requirements described in (A) or (B) below. Closures may be made (A) by use of closure...
  4. kalmari

    ASME/ASTM specifications - Government procurement

    Some ASME/ASTM-specifications (e.q. SA-450) has paragraph "Government procurement". In which case these requirements shall be applied?
  5. kalmari

    Is there a standard for Material Test Reports

    There seems to ne no any standard for test reports in ASTM/ASME. But in most of material specifications is referred to General specification which should be followed in addition to applicable material spec. And requirements for information to be stated on material test reports is described in...
  6. kalmari

    Stay & Unstay

    Unstayed heads: see examples in fig PG-31. Stayed constructions: see/read examples for firetube boilers PFT-22 to PFT-32
  7. kalmari

    T/P 23 & ASME Code Case 2199

    Note that this latest revision CC2199-5 has a lot of requirements for heat treatment after forming depending on the strain. These haven't been in earlier revisions.
  8. kalmari

    ASME SA-106, Grade C Impact

    Normally when using ASME materials in Europe manufactures purchase the material with additional impact test having requirement as Corvax wrote aboved. How else the impact energy could be quaranteed if ASME or ASTM does not state any requirement. Additional testing for material coming from the...
  9. kalmari

    welding 15NiCuMoNb5 (1.6368)

    About PWHT of German material 15NiCuMoNb5. There was at least earlier a recommendation by steel manufacturers to carry out the PWHT at not higher than about 30°C lower temperature as the tempering temperature of original material to avoid the dropping of strength values. Without knowing more...
  10. kalmari

    Imperial vs Metric Pipe etc

    "Does Metric pipe actually exist? e.g. for A106-B" For several specifications is both imperial and metric specifications e.g. A335/A335M. But it is strange that just your example A106 which is adopted to ASME IIA is referring only to imperial unit specification not to metric unit specification...
  11. kalmari

    Alternative to Material SA302 Gr.B

    In Europe German Dillinger is best-known producer of SA-302B plate. In US ask from Dillinger USA Inc. www.dillinger.de/
  12. kalmari

    B31.1

    About this Boiler External Piping Edition/Addenda. I have taught by AI's long time ago that because BEP goes under Section I's jurisdiction for Boiler External Piping you shall use for B31.1 the Edition and Addenda into which is referenced in applicable Section I table A-360. So when this moment...
  13. kalmari

    16Mo3 S/O Flanges

    yeoyeo, 15Mo3 is the old German DIN-material grade which has been replaced in current European EN-material standards with grade 16Mo3. Nowadays e.q. welding neck flanges and slip-on flanges are specified in EN1092-1. In this standard is some carbon steel grades (P250GH,...) which have at at...
  14. kalmari

    SA-516-70 1/4" plate for PED compliance

    Do you mean plate manufacturer fulfilling the requirement of PED 97/23EC in which is stated "material manufacturer has an appropriate quality-assurance system, certified by a competent body established within the Community and having undergone a specific assessment for materials"? I think most...
  15. kalmari

    Overlay welding

    Hi, Am I right that cladding pipes/tubes with stainless weld overlay goes under Code jurisdiction? Meaning if these pipes/tubes are to be used in vessels or boilers per applicable ASME Code the company performing overlay welding needs ASME stamp, issues data report etc. I assume that that these...

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