API 570 Temperatures Questions With Complete Correct Answers.
CUI affects Carbon Steel (Temperature Range) - 10-350 oF (574 - 7.4.4.1.e) B31.3 Recommended Minimum Preheat Temps become Required - 32 oF (31.3 - 330.1.1) Minimum flash point of hydrocarbons used for leak testing - 120 oF (5.8.1) Standard temperature range for a PT exam. - 40 - 125 oF (V - T-652) Temp when UT readings should be compensated for temperature. - 150 oF (5.7.1) CUI affects Stainless Steel (Temperature Range) - 120-400 oF (574 - 7.4.4.1.h) Typical dew point of hydrochloric acid - 130 oF (571 - 4.3.7.3.d) Most aggressive CUI temperature range - 212-250 oF (571 - 4.3.3.3.d) Typical dew point of sulfuric acid - 280 oF (571 - 4.3.7.3.c) Minimum pre-heat temperature when performing pre-heat in lieu of a PWHT - 300 oF (8.2.3.2) Minimum pre-heat temperature when performing a local PWHT in lieu of a full encirclement PWHT - 300 oF (8.2.3.3.c) Starting temp of Sulfidation on Carbon Steel (sulfur content 0.5% by weight) - 450 oF (574 - 7.4.6.2.j) 500 oF (571- 4.4.2.3.c)Operating temperature which causes temper-embrittlement of low chromes - 650 - 1100 oF (574 - 3.1.39
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