EXPLANATIONS | A+ STUDY RESOURCE |BRAND NEW 2026/2027
< 0F
Answer
No welding recommended
0-32F
Answer
Base metal to be warmed to 60oF prior to welding
10-350F
Answer
CUI affects Carbon Steel (temperature Range)
40-125F
Answer
Standard temperature range for a PT exam
140F
Answer
Temperature where Cooling Water corrosion starts to significantly increase
140F
Answer
Temperature where chloride stress corrosion cracking becomes a concern.
1
,140-400F
Answer
CUI affects Stainless Steel (Temperature Range)
> 150F
Answer
Special procedures are needed for UT thickness readings
200F
Answer
Temperature swings that can cause thermal fatigue
300F
Answer
Minimum pre-heat temperature for Pre-heat in lieu of a PWHT
300F
Answer
Minimum pre-heat temperature when performing a local PWHT in lieu of a full encirclement
PWHT
450 or 500F
Answer
Starting temperature for Sulfidation on Carbon Steel
650-1100F
2
, Answer
Temper embrittlement for low chromes (temperature range)
> 750 F
Answer
Consult a Corrosion Specialist when developing an Inspection Plan
825F
Answer
Graphitization of ferritic steels begins
900F
Answer
Creep begins in 1-1/4% Chrome materials
1000F
Answer
Maximum temperature for digital UT readings
1100F
Answer
Carbon Steel PWHT temperature
MDMT + 10F
Answer
Minimum base metal temp during hydrotesting vessels < 2" thick
3
< 0F
Answer
No welding recommended
0-32F
Answer
Base metal to be warmed to 60oF prior to welding
10-350F
Answer
CUI affects Carbon Steel (temperature Range)
40-125F
Answer
Standard temperature range for a PT exam
140F
Answer
Temperature where Cooling Water corrosion starts to significantly increase
140F
Answer
Temperature where chloride stress corrosion cracking becomes a concern.
1
,140-400F
Answer
CUI affects Stainless Steel (Temperature Range)
> 150F
Answer
Special procedures are needed for UT thickness readings
200F
Answer
Temperature swings that can cause thermal fatigue
300F
Answer
Minimum pre-heat temperature for Pre-heat in lieu of a PWHT
300F
Answer
Minimum pre-heat temperature when performing a local PWHT in lieu of a full encirclement
PWHT
450 or 500F
Answer
Starting temperature for Sulfidation on Carbon Steel
650-1100F
2
, Answer
Temper embrittlement for low chromes (temperature range)
> 750 F
Answer
Consult a Corrosion Specialist when developing an Inspection Plan
825F
Answer
Graphitization of ferritic steels begins
900F
Answer
Creep begins in 1-1/4% Chrome materials
1000F
Answer
Maximum temperature for digital UT readings
1100F
Answer
Carbon Steel PWHT temperature
MDMT + 10F
Answer
Minimum base metal temp during hydrotesting vessels < 2" thick
3
