API 510 Temper Embrittlement

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Author:
egf4201
ID:
311944
Filename:
API 510 Temper Embrittlement
Updated:
2015-11-23 17:09:24
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API 510 Temper Embrittlement
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API 510 Temper Embrittlement
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API 510 Temper Embrittlement
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  1. Temper embrittlement causes a loss of
    toughness at low temps
  2. Temper embrittlement occurs because of
    long term operation between 650-1070°F
  3. The primary metallurgy that is affected by Temper embrittlement is
    2-1/4 chrome
  4. Materials manufactured prior to what year are more susceptible to Temper embrittlement than current materials
    1972
  5. Susceptibility to Temper embrittlement is largely determined by the amount of
    manganese, silicon and tramp elements
  6. Which of the following is the most susceptibility to Temper embrittlement
    A) welds in 2-1/4 chrome
    B) welds in 5-chrome
    C) base metals in 5-chrome
    D) base metals in 2-1/4 chrome
    A) welds in 2-1/4 chrome
    (this multiple choice question has been scrambled)
  7. The metallurgical change that occurs during temper embrittlement can be confirmed by
    impact testing
  8. During start up a susceptible vessel could fail of temper embrittlement. To minimize this risk, prior to getting the vessel up to an acceptable temp, the pressure is normally limited to
    25% of MAWP
  9. The effects of Temper embrittlement can
    be reversed by heating to 1150°F for a period of time and rapidly cooling
  10. The best way to prevent Temper embrittlement is to
    minimize trace elements like silicon, phosphorus,etc. in the steel

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