Api-653 – Temperatures Rated A

API-653 – TEMPERATURES RATED A Reconstruction -Base metal temp where welding is not allowed 0 F --- ref. (653: 10.4 .2.3 ) Reconstruction -Base metal temp when hand-warm pre-heat is required 10.4.2.3 ) Linings -Minimum temp when performing abrasive blasting 0-32 F --- ref. (653: 5 of above dew point --- ref. (0.) Linings -Minimum temp when installing tank bottom linings (0.) 5 of above dew point --- ref. Corrosion -The corrosion rate of steel tank bottoms may double with this rise in temperature --- ref. (651 : 5.4.1 Note ) UT Calibration -Calibration Block must be within what temperature of the part to be examined F --- ref. (5n: 9.9.1 ) Vacuum Box -Standard temperature range for VB exam PT -Standard temperature range for a PT exam 40 -125 F --- ref. (650: 8 .6.6 ) 40 -125 F --- ref. (V: T-652/653 ) 18 F 25 Impact Test -Design metal temperature that requires weld procedure used for vertical welds to be im~acted tested 50 F --- ref. (650: 9.2.2.3 ) Brittle -Tank metal temperature where brittle fracture is NOT a concern 60 F --- ref. (653: Fig 5.1 ) Bottom Lap Patches -Metal temp where lap-patches are NOT allowed in critical zone on SS tank 100 F --- ref. (653: 9.10.1.2.3 ) Intervals -If tank product solidify below this temperature, the code maximum interval rules do not apply 110 F --- ref. (653: 6.4.2.1.2.1 ) Preheat -Approximate temp of a required hand-warm pre-heat 140 F --- ref. (653: 10.4.2.3 ) Corrosion -Temperature when high strength caustic causes serious corrosion in CS and 300 SS 150 F --- ref. (571 : 4 .3.10.6c 575: 7 .4.3 ) Preheat -Required pre-heat temperature for shell welds over 1.5" thick during Reconstruction 200°F --- ref. (653: 10.4.4.3 ) Bottom Lap Patches -Metal temperature where lap-patches are NOT allowed in the critical zone on CS tanks 200 F --- ref. (653: 9.10.1.2.3 ) Temperature Range for API 650 App M 200-500 F --- ref. (650: 1.1.20 ) Corrosion -Most aggressive temperature range for CUI. Range for API 575 and API 571 212 -250 F --- ref. (575: 7.2.7 571 : 4 .3.3.3.d ) Preheat -Minimum pre-heat temperature, when pre-heat is substituted for PWHT (653: 11.3.1 .d ) Maximum temperature for UT readings PWHT Temperature 1000 F --- ref. (V: SE-797 8.5 ) F --- ref. (650: 5.7.4.1/2 ) 120 -200°F