DATA Sheets- Misc Others Flashcards
Design- Two most common CS pipe materials
A53 and A106
NDE- Min angle of eye-to-part to count as visual exam
30 Degrees
Welding- Variables needed in WPS
Essential and Non Essential
NDE- Min light intensity when performing non-fluorescent MT or PT or VT exams
100 ft candles
Test- Max stress allowed during a pressure test
90% of SMYS
NDE- Min black light intensity when performing MT or PT fluorescent exams
1000 micro W /cm^2
Corrosion- Typical external corrosion rate for inland locations with moderate rain and humidity
1 - 3 mills per year
Welding- Variables needed in PQR
Essential
NDE- Weight used to check magnetic strength of an DC yoke
40 LBS
NDE- Two primary Gamma-ray RT sources
Iridium 192
Cobalt 60
NDE- Max UT scanning speed
6” per sec
Welding- Min taper required for welds with mismatch
30 degrees
Welding- Meaning of “S” in the electrode designation for a GMAW or GTAW electrode
Solid Wire
Repair- Max allowed SMYS for pipe if fillet- welded patch is installed
40,000 PSI
NDE- Hole size that must be visible in RT when using a hole-type IQI
2T
Weld Qualification- The “all-position” test coupon
6G
Corrosion - Typical external corrosion rate for dry rural area
< 1 Mills Per year
Welding- MEaning of 1st two digits in the electrode designation for a SMAW electrode
Strength
Welding- Weld metal is most similar to what fab process
Casting
Welding- Most extensively used NDE method for welds
Visual
NDE- Lead letter used during RT to indicate a film side IQI
F
Corrosion- Possible external corrosion rate for marine locations
20 mills per year
Weld Qualification- Rejectable in RT when qualifying a welder
- Crack
- Lack of Fusion (LoF)
- Incomplete Penetration
NDE- Weight used to check magnetic strength of an permanent yoke
40 LBS
Weld qualification- Which welding process can a welder NOT be qualified by RT/UT
GMAW with Short-Circuiting
Test- Pressure to perform inspection during a pressure test of pipe that has been in service
<= MAWP
Welding- GMAW transfer mode likely to have LOF
Short Circuit
Test- pH of water needed to reduce likelihood of MIC (bugs)
> 10 pH
Welding- Most commonly used welding process
SMAW ( Stick Metal Arc Welding)
NDE- Lead letter used during RT to check for backscatter radiation
B
Weld qualification Max allowed thickness on a WPS based on the plate thickness (T) of a PQR test coupon
2 * T
NDE- Weight used to check magnetic strength of an AC yoke
10 LBS
