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API 570 Temp Data

API 570

QuestionAnswer
CUI affects Carbon Steel (Temperature Range) 25 – 250 oF
B31.3 Recommended Minimum Preheat Temps become Required </= 32 oF
Standard temperature range for a PT exam. 40 – 125 oF
Minimum flash point of hydrocarbons used for leak testing 120 oF
Temp when UT readings should be compensated for temperature. >/= 150 oF
CUI affects Stainless Steel (Temperature Range) 150 – 400 oF
Minimum pre-heat temperature when performing pre-heat in lieu of a PWHT 300 oF
Minimum pre-heat temperature when performing a local PWHT in lieu of a full encirclement PWHT 300 oF
Starting temperature of Sulfidation on Carbon Steel (sulfur content > 0.5% by weight) Per API 570 450 oF
Operating temperature which causes temper-embrittlement of low chromes (temperature range) 700 – 1070 oF
Graphitization begins for Carbon Steel materials 800 oF
Creep begins in 1-1/4% Chrome materials 900 oF
Maximum temperature for UT transducers with special delay lines (Per API 574) 1100 oF
Carbon Steel PWHT temperature 1100 – 1200 oF
Created by: sicktick
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