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Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
CSWIP 3.1 Welding InspectionCSWIP 3.1 Welding Inspection
TWI Training & Examination TWI Training & Examination ServicesServices
Practical Pipe InspectionPractical Pipe Inspection
Course Reference WIS 5Course Reference WIS 5Course notes section reference 23
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
Pipe InspectionPipe Inspection
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
HI-
LO
S
ing
le P
urp
os
e W
eld
ing
Ga
ug
e
1
2
3
4
5
6 Root gap Root gap dimensiondimension
Internal Internal alignmentalignment
Hi – Low & Root gap Hi – Low & Root gap MeasurementsMeasurements
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
Remember in the CSWIP 3.1 Welding Inspectors Remember in the CSWIP 3.1 Welding Inspectors
examination your are required to conduct a practical examination your are required to conduct a practical
examination of a pipe test weld, complete a thumb examination of a pipe test weld, complete a thumb
print sketch and a final report on your findingsprint sketch and a final report on your findings
Time allowed 1 hour and 45 minutesTime allowed 1 hour and 45 minutes
Use your own code i.e. API 1104Use your own code i.e. API 1104
Pipe Inspection ExaminationPipe Inspection Examination
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
1)1) Use a pencil for the arrow lines, but make all Use a pencil for the arrow lines, but make all written comments and measurements in written comments and measurements in ink ink onlyonly
3)3) Do not forget to Do not forget to compare and sentencecompare and sentence your your reportreport
2) Report 2) Report everythingeverything that you can observe that you can observe
4) Do not forget to 4) Do not forget to date & signdate & sign your report your report
5)5) Make any observations, such as Make any observations, such as recommendations for further investigation for recommendations for further investigation for crack-like imperfections.crack-like imperfections.
Pipe Inspection PointsPipe Inspection Points
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
After you have observed an imperfection and After you have observed an imperfection and
determined its type, you must be able to take determined its type, you must be able to take
measurements and complete the thumb print report measurements and complete the thumb print report
sketchsketchThe first thumb print report sketch should be in the The first thumb print report sketch should be in the
form of a repair map of the weld. (i.e. form of a repair map of the weld. (i.e. AllAll
observations are Identified Sized and Located) observations are Identified Sized and Located)
The thumb print report sketch used in CSWIP exam The thumb print report sketch used in CSWIP exam
will look like the following example.will look like the following example.
Pipe Inspection ExaminationPipe Inspection Examination
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
After you have completed your thumb print report After you have completed your thumb print report
sketch of your test pipe the next step is to complete sketch of your test pipe the next step is to complete
your final report again the report must be your final report again the report must be completed in completed in
ink (no pencil).ink (no pencil).The report must be completed to your thumb print The report must be completed to your thumb print
sketch, do not leave any boxes empty, sketch, do not leave any boxes empty, every box must every box must
be completed or dashed outbe completed or dashed out. You must also make any . You must also make any
comments you feel are necessary regarding any comments you feel are necessary regarding any
defects observed.defects observed.
The report form used in CSWIP will look like the The report form used in CSWIP will look like the following example.following example.
Pipe final Inspection ReportPipe final Inspection Report
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
P
ag
e 1
of
3
Pa
ge
1 o
f 3
EX
AM
PL
E
PIP
E R
EP
OR
TE
XA
MP
LE
P
IPE
RE
PO
RT
N
am
e:
[Blo
ck
ca
pit
als
]
Na
me
: [B
loc
k c
ap
ita
ls]
Mr.
I
C P
len
tyM
r.
I C
Ple
nty
S
ign
atu
re:
Sig
na
ture
: I
C P
len
tyI C
Ple
nty
Te
st
pie
ce
id
en
t
T
es
t p
iec
e i
de
nt :
:
00100
1
C
od
e/S
pe
cif
ica
tio
n u
se
d:
C
od
e/S
pe
cif
ica
tio
n u
se
d:
AP
I 1
10
4A
PI
11
04
W
eld
ing
pro
ce
ss
:
We
ldin
g p
roc
es
s:
M
MA
/SM
AW
MM
A/S
MA
W
J
oin
t ty
pe
:
Jo
int
typ
e:
Sin
gle
V B
utt
S
ing
le V
Bu
tt
W
eld
ing
po
sit
ion
:
We
ldin
g p
os
itio
n:
Fla
t /P
AF
lat
/PA
Ou
tsid
e D
ia &
th
ick
ne
ss
Ou
tsid
e D
ia &
th
ick
ne
ss
3
00
mm
x
10
mm
3
00
mm
x
10
mm
D
ate
Da
te
22/08/2003
22/08/2003
WELD FACEWELD FACE
CCBB
AA
98
98
Arc
Str
ike
Arc
Str
ike
AADD
CC
20
20
15
15
Lack of side Lack of side wall fusion wall fusion
90
90
10
10
UndercutUndercut
>1.0 >1.0 mmmm
140
140
88
Lack of side Lack of side wall fusion wall fusion
180
180
46
46
Under fill Under fill
40
40 12
12
Under fill Under fill
60
60
55Slag Slag inclusioninclusion
Cap height : 4mm. Weld width: 12-14mmCap height : 4mm. Weld width: 12-14mmToe blend: Poor. Misalignment (HI-LO): 1mmToe blend: Poor. Misalignment (HI-LO): 1mmSpatter or scale on the pipe surfaceSpatter or scale on the pipe surface
NOTES:NOTES:
Cap height : 3mm. Weld width: 12-14mmCap height : 3mm. Weld width: 12-14mmToe blend: Poor. Misalignment(HI-LO): Toe blend: Poor. Misalignment(HI-LO):
2mm2mmSpatter or scale on the pipe surfaceSpatter or scale on the pipe surface
Cap height : 4mm. Weld width: 12-14mmCap height : 4mm. Weld width: 12-14mmToe blend: Poor. Misalignment (HI-LO): 2mmToe blend: Poor. Misalignment (HI-LO): 2mmSpatter or scale on the pipe surfaceSpatter or scale on the pipe surface
Cap height : 5mm. Weld width: 12-14mmCap height : 5mm. Weld width: 12-14mmToe blend: Poor. Misalignment(HI-LO): Toe blend: Poor. Misalignment(HI-LO):
1mm1mmSpatter or scale on the pipe surfaceSpatter or scale on the pipe surface
120
120
15
15
SlagSlag
25
25
Arc
Str
ike
Arc
Str
ike
38
38
88
Lack of side Lack of side wall fusion wall fusion
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
PIPE ROOT PIPE ROOT FACEFACE
CCBB
AA
AADD
CC
20
20
15
15
Lack of root Lack of root penetration penetration
90
90
10
10
UndercutUndercut
>1.0 >1.0 mmmm
140
140
88
Lack of root Lack of root fusion fusion
180
180
46
46
Excess Excess penetration penetration
5mm 5mm
40
40 66
Burn through Burn through
60
60
55Poor stop Poor stop startstart
Penetration height : 5mm. Penetration height : 5mm. Misalignment (HI-LO): 1mmMisalignment (HI-LO): 1mmScale on the pipe surfaceScale on the pipe surface
NOTES:NOTES: Penetration height : 3mm. Penetration height : 3mm. Misalignment (HI-LO): 2mmMisalignment (HI-LO): 2mmSpatter on the pipe surfaceSpatter on the pipe surface
Penetration height: 2mm.Penetration height: 2mm.Misalignment (HI-LO): 2mmMisalignment (HI-LO): 2mmSpatter on the pipe surfaceSpatter on the pipe surface
Penetration height: 3mm.Penetration height: 3mm.Misalignment (HI-LO): 1mmMisalignment (HI-LO): 1mmScale on the pipe surfaceScale on the pipe surface
120
120
120
120
Smooth Undercut Smooth Undercut <1.0mm<1.0mm
38
38
88
Lack of root Lack of root fusion fusion
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
I C PlentyI C Plenty
001001SPECIMEN NUMBERSPECIMEN NUMBER
AcceptAccept--------------------------------------------N/AN/ALongitudinal seams (PIPE)Longitudinal seams (PIPE)
AcceptAccept7.27.23mm3mm2mm2mmMisalignment (Linear)Misalignment (Linear)
AcceptAccept----------------------------------------------NONENONELaps/LaminationsLaps/Laminations
AcceptAccept----------------------------------------------NONENONEMechanical damageMechanical damage
Reject**Reject**Not specifiedNot specified------------------------30x2530x25Arc strikesArc strikes
AcceptAccept9.39.325mm25mm22mm22mmLack of fusionLack of fusion
Reject*Reject*9.3.109.3.10NONENONE40mm40mmCracks/Crack-like defectsCracks/Crack-like defects
AcceptAccept9.3.9.39.3.9.32mm 2mm 1.5mm 1.5mm Surface PorositySurface Porosity
RejectReject9.7.2 Table 49.7.2 Table 40.8mm0.8mm1.5mm depth1.5mm depthUndercutUndercut
RejectReject7.8.27.8.2NoneNone70mm long70mm longSlag InclusionsSlag Inclusions
AcceptAccept7.9.27.9.23mm3mmN/AN/AInadequate weld width (PIPE)Inadequate weld width (PIPE)
AcceptAccept7.8.27.8.2NoneNone22mm22mmIncomplete fillingIncomplete filling
RejectReject7.8.27.8.2SmoothSmoothPoor blendPoor blendExcess weld metal appearanceExcess weld metal appearance
7.8.27.8.2Excess weld metal heightExcess weld metal height
Accept/RejectAccept/Reject
55
Section/Section/Table NTable Noo
44
MaximumMaximumAllowanceAllowance
33
AccumulativeAccumulativeTotalTotal
22
Defect TypeDefect Type
Code or Specification ReferenceCode or Specification ReferenceDefects NotedDefects NotedEXTERNAL DEFECTSEXTERNAL DEFECTS
PRINT FULL NAMEPRINT FULL NAME
4mm4mm 1.6mm1.6mm RejectReject
Pipe final Inspection ReportPipe final Inspection Report
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
SignatureSignature I C PlentyI C Plenty Date Date 22nd August 22nd August 20032003*Delete which is not applicable. *Delete which is not applicable. Use the other side for any comments.Use the other side for any comments.
This *pipe/plate has been examined to the requirements of code/specification API This *pipe/plate has been examined to the requirements of code/specification API 1104.................1104.................and is accepted/rejected accordingly.and is accepted/rejected accordingly.
Comments:Comments:** Request MPI testing.Request MPI testing.**** Recommend arc strikes are ground flush prior to MPI testing for cracks.Recommend arc strikes are ground flush prior to MPI testing for cracks.*** Radiography Required *** Radiography Required
AcceptAccept--------------------------------------------NONENONELaps/LaminationsLaps/Laminations
RejectReject9.3.9.39.3.9.32mm 2mm 1.5mm 1.5mm PorosityPorosity
RejectReject7.8.27.8.2NoneNone70mm long70mm longSlag inclusionsSlag inclusions
AcceptAccept9.3.109.3.10------------------------NONENONECracks/Crack-like defectsCracks/Crack-like defects
AcceptAccept9.3.119.3.110.8mm0.8mm0.5mm0.5mmRoot UndercutRoot Undercut
See Notes ***See Notes ***9.3.69.3.61mm1mm2mm depth2mm depthRoot ConcavityRoot Concavity
AcceptAccept9.3.49.3.425mm25mm20mm20mmLack of Root FusionLack of Root Fusion
AcceptAccept9.3.19.3.125mm25mm50mm50mmIncomplete Root PenetrationIncomplete Root Penetration
AcceptAcceptNot specifiedNot specified------------------------4mm4mmExcessive Root PenetrationExcessive Root Penetration
AcceptAccept7.27.23mm3mm2mm2mmMisalignmentMisalignment
Accept/RejectAccept/Reject
55
Section/Section/Table NTable Noo
44
MaximumMaximumAllowanceAllowance
33
AccumulativeAccumulativeTotalTotal
22
Defect TypeDefect Type
Code or Specification ReferenceCode or Specification ReferenceDefects NotedDefects NotedEXTERNAL DEFECTSEXTERNAL DEFECTS
Pipe final Inspection Report RootPipe final Inspection Report Root
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
Reinforcement Height: 7.8.2
page 20
Reinforcement Appear: 7.8.2
page 20
Incomplete groove: 7.8.2 page 20
Inadequate weld width: 7.8.2
page 20
Slag inclusions: 7.8.2 page
20
Undercut: 9.3.11
page 24
Porosity: 9.3.9
page 24
Cracks: 9.3.10
page 24
Lack of fusion: 9.3.4
page 22
Arc strikes/arc burns: A.5.3
page 55
Mechanical damage: Not
referenced
Lamination: Not
referenced
Misalignment: 7.2 page 19
Longitudinal seams: Not referenced
Excess penetration: Not referenced
Lack of penetration: 9.3.1/9.3.2 page 21
Lack of root fusion: 9.3.4 page 22
Concave root: 9.3.6 page 22
Burn through: 9.3.7 page 22
Pipe Code API 1104Pipe Code API 1104
Copyright © 2006, TWI LtdWorld Centre for Materials Joining Technology
Any QuestionsAny Questions
??