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  • Users: ATsampalas
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  1. ATsampalas

    Plate or Forging A48-C1 : Where is it coming from ?

    Hello all, I hope someone can help. a) According to NF A 36-205 (Edition 1982) Plates A 48 exist in three variants AP, CP and FP . If a certification after heat treatment is necessary, a guarantee can be given and the three variants are followed by an "R" (ex. A 48 APR, A 48 CPR and A 48 FPR) ...
  2. ATsampalas

    ASTM / ASME (S)A-325 Type 1 and ASTM A-490 Bolting Materials

    Hello everybody, Point A According to ASME 2 Part D, SA-325 Type 1 can be used up to 343 °C . Is this temperature valid for both Plain (noncoated) and Zinc coated finish types ? Point B ASTM A-490 has no ASME equivalent (SA-490 does not exist). What is the maximum temperature to be applied ...
  3. ATsampalas

    Format or syntax writing inch values in a table

    In order to avoid any wrong interpretation how can I write inch values in a table ? General Example (particularly Excel use) 1 1/4" 1 2/5" 1/2" 3 1/2" Sincerely, A. Tsampalas
  4. ATsampalas

    APROVAL TESTING OF WELDING OPERATORS : EN 287-1 or EN 1418 ?

    Hi all, According to EN 1090-2 "...Technical Requirements for Steel structures", we have to qualify an operator in an automatic process (SAW - Submerged Arc Welding = 121 ). Both Operator-qualification documents EN 287-1 and EN 1418 are referenced in EN 1090-2. In our opinion, the Operator...
  5. ATsampalas

    ASME B-31.1 Thermowell Stainless steel material in wet environment

    Thermowell Stainless steel material in wet environment according to ASME B-31.1 (up to 2010 Edition) . Question 1 : Is Stainless steel material (A182-F316H) acceptable for use on Boiler External Piping at Temperatures of 316 °C max. ? Remarks : In my opinion, ASME B-31.1 does not mention this...
  6. ATsampalas

    ASME SECTION 2 PART D TABLE 1A

    In ASME Code, Section 2, Part D, can someone explain why some values are in italic ? Sincerely, A_Tsampalas
  7. ATsampalas

    Pressure: bar, bara, barg : Where can be found a clarification

    Hi all, Where can I find a standard clarification between : bar ? bara (Absolute Pressure) ? barg (Gauge Pressure) ? The Standard being either : ASTM, ASME, British Standard, Euro-Norm, or ... Sincerely, A_Tsampalas
  8. ATsampalas

    Difference between a wrought steel and a forging steel

    Can someone explain what is the difference between a Wrought steel and a forging ? Ex. difference between : ASME SA 182 F 91 and ASME SA 234 WP 91 Sincerely,
  9. ATsampalas

    Elimination of a cladding part to create a bevel

    thread725-146231 I am trying to find the precise English word of "the elimination of a cladding part to create a bevel" (see attached figure). Justification of this operation : a)Welding (carbon products) base metal 1+2 b)Appropriation (cleaning, machining or grinding) of the surface before CND...
  10. ATsampalas

    CREEP RUPTURE STRENGTH FOR GRADE T23

    Can someone help to find Creep Rupture Strength for Tubes Grade T23 (SA 213 Grade T23) 10000H + 100000H + 200000H ? a) Grade T23 is defined in Code Case 2199-3 and ASME-2A+D but neither of them give any answer to our problem . b) The German Stahschlüssel (Key to Steel) gives an additional...
  11. ATsampalas

    ASME B31-1 STEAM VALVES

    In an ASME B31-1 (2004 Edition - 2006 Addenda) Nonboiler External Piping and Joint (NBEP) equipment - the ASME Code Committee for Pressure Piping, B31, has total administrative and technical responsibility . A Steam Valve is to be ordered and the supplier can furnish such a Valve according to...
  12. ATsampalas

    SAFETY VALVE and FLOWMETER LOCATION

    ASME 1 2004 Edition - 2006 Addenda Which should be the location of the Safety Valve in the steam flow path after the Superheater (superheated steam outlet) : Upstream or Downstream of the flowmeter ? Remark : Nothing was found in the ASME 1 Interpretations (from Volume 1 till Volume 56) ...
  13. ATsampalas

    SOFTWARE - FATIGUE BEHAVIOUR and LIFE EXPECTANCY CALCULATIONS

    Dear Sirs, I am trying to find any software taking into consideration the Fatigue behaviour (and Life Expectancy Calculations) according to : EN 12952-3 - (latest 12/2001 edition) Water-tube boilers and auxiliary installations - Part 3 - Design and calculation for pressure parts - Chapter 13 +...
  14. ATsampalas

    ASME 1 rules for overpressure protection in HRSG

    Dear Sirs, Can someone explain where to find, within ASME 1 Code (or additional rules to ASME), the requirements about the necessity of safety valves and their capacity with a view to protect against overpressure : a) Steam Turbine Side ; b) Cold Reheat Side ? We guess that the existence...
  15. ATsampalas

    FATIGUE-APPEARANCE-TRANSITION TEMPERATURE (FATT)

    1) Can someone explain how to calculate FATT for a given metal ? 2) Is it a link with a Charpy-V Transition Curve Temperature ? Please explain ... 3) Any reference documentation about FATT will be appreciated . Sincerely, A_Tsampalas
  16. ATsampalas

    How to measure the Creep Characteristic of Pipes

    In order to estimate the residual life of pipes operated at high temperature, we are asked to measure the creep evolution. How can we proceed to take these measures ? Sincerely, A. Tsampalas
  17. ATsampalas

    Base Metal supporting 1350 ¦C

    What kind of base metal is able to support a temperature of 1350 °C ? Base metal form : Flat products of 10 mm thickness P.S. Up till now the highest base metal found is MA 956 (from SPECIAL METALS) limited to 1300 °C . Sincerely, A . Tsampalas
  18. ATsampalas

    DEMINERALIZED WATER

    Question : In conformity with ASME 1 Edition 2001, Addenda 2003, for a preheater in a Heat Recovery Steam Generator (HRSG), what kind of base metals (pipes and tubes) can be chosen with a view to face demineralized water (Oxygen = 5 ppm ) and a Temperature between 30 and 155 °C ? P.S. Our first...

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