Quality Level B
Transcript of Quality Level B
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N
O.
REFERE
NCE
IMPERFECTION
DESIGNATION
REMARKS THICKNESS,
t MM
QUALITY LEVEL, B
SURFACE IMPERFECTIONS1 100 Crack ≥ 0.5 Not permitted2 104 Crater Crack ≥ 0.5 Not permitted
3 2017 Surface pore Maximum dimension of a singe pore for!" #utt $eds
" %et $eds
0.5 to 3 Not permitted
Maximum dimension of a singe pore for!
" #utt $eds
" %et $eds
& 3 Not permitted
4 2025 'nd crater pipe 0.5 to 3
& 3
Not permitted
5 401 (ack of fusion
)incompete fusion*
""""""""""""""""""""""""""""""""""""""""""""""
""
≥ 0.5 Not permitted
Micro ack of fusion +n, detecta#e #, micro examination ≥ 0.5 Not permitted- 4021 ncompete root
penetration
+n, for singe side #utt $eds ≥ 0.5 Not permitted
7 5011
5012
Continuous
undercut
ntermittent
undercut
Smoot/ transition is reuired 0.5 to 3
& 3
Not permitted
/ 0.05 t #ut max.
0.5mm
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5013 S/rinkage grooe Smoot/ transition is reuired 0.5 to 3
& 3
Not permitted
S/ort imperfections!
/ 0.05 t #ut max. 0.5
mm 502 'xcess $ed meta
)#utt $ed*
Smoot/ transition is reuired ≥ 0.5 / 1mm 6 0.1 # #ut
max. 5mm
10 503 'xcessie conexit,
)%et $ed*
≥ 0.5 / 1mm 6 0.1 # #ut
max. 3mm
11 504 'xcess penetration 0.5 to 3
& 3
/ 1mm 6 0.1 #
/ 1mm 6 0.2 # #utmax. 3mm
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12 505 ncorrect $ed toe utt $eds ≥ 0.5 8 ≥ 1500
9iet $eds ≥ 0.5 8 ≥ 1100
13 50- +erap ≥ 0.5 Not permitted
14 50511
Saggingncompete, %ed
grooe
Smoot/ transition is reuired 0.5 to 3
& 3
Not permitted
S/ort imperfections!
/ 0.05 t #ut max. 0.5
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mm15 510 """"""""""""""""""""""""""""""""""""""""" ≥ 0.5 Not permitted1- 512 'xcessie
as,mmetr, of %et
$ed
)excessie uneua eg
engt/*
n cases $/ere an as,mmetric %et $ed
/as not #een prescri#ed.
≥ 0.5 / 1.5mm 6 0.15 a
17 515 :oot concait, Smoot/ transition is reuired 0.5 to 3
& 3
Not permitted
S/ort imperfections!
/ 0.05 t #ut max. 0.5
mm
1 51- :oot porosit, Spong, formation at t/e root of a $ed
due to #u##ing of t/e $ed meta at t/e
moment of soidi%cation )e.g. ack of gas
#acking*
≥ 0.5 Not permitted
1 517 ;oor restart """""""""""""""""""""""""""""""""""""""""""""""" ≥ 0.5 Not ;ermitted
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20 5213 nsu<cient t/roat
t/ickness
Not appica#e to processes $it/ proof of
greater dept/ of penetration
0.5 to 3
& 3
Not permitted
Not permitted
21 5214 'xcessie t/roat
t/ickness
=/e actua t/roat t/icknesses of t/e %et
$ed is too arge.
≥ 0.5 / 1mm 6 0.15 a #ut
max. 3 mm
22 -01 Stra, arc
""""""""""""""""""""""""""""""""""""""""""""""""
≥ 0.5 Not permitted
23 -02 Spatter
""""""""""""""""""""""""""""""""""""""""""""""""
≥ 0.5 >cceptance depends on
appication e.g. materia
corrosion protection24 -10 =emper coour
)?iscoouration*
""""""""""""""""""""""""""""""""""""""""""""""""
≥ 0.5 >cceptance depends on
appication e.g. materia
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corrosion protection.
INTERNAL IMPERFECTIONS
1 100 Cracks > t,pes of cracks except microcracksand crater cracks
≥ 0.5 Not permitted
2 1001 Microcracks > crack usua, on, isi#e under t/e
microscope )50x*
≥ 0.5 >cceptance depends on
t,pe of parent materia
$it/ particuar reference
to crack sensitiit,.3 2011
2012
@as pore
Aniform,
distri#uted porosit,
=/e foo$ing conditions and imits for
imperfections s/a #e fu%ed!
a1: Maximum dimension of t/e area of
t/e imperfections )incusie of
s,stematic imperfection* reated to t/eproBected area
Note! ;orosit, in t/e proBect area
depends on t/e num#ers of a,ers
)oume of t/e $ed*
a2: Maximum dimension of t/e cross"
sectiona area of t/e imperfections
)incusie of s,stematic imperfection*
reated to t/e fracture area )on,appica#e to test pieces! production test
$eder or procedure uai%cation tests*
b: Maximum dimension for a singe pore
for
≥ 0.5
≥ 0.5
≥ 0.5
9or singe a,er! 1
9or muti"a,er! 2
1
d 0.2 s #ut max. 3mm
d 0.2 a #ut max. 3mm
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" utt $eds" 9iet $eds
4 2013 Custered
)(ocaiDed porosit,*
:eference engt/ for p is for 100mm.
=/e tota gas pore area $it/in t/e custer
is represented #, a circe of diameter d>
≥ 0.5 d> 15mm or d> max $pE2
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a #ut max. 25mm
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- 2015
201-
'ongated cait,
$orm/oes
utt $eds ≥ 0.5 / 0.2 s #ut max. 2mm
s #ut max. 25mm9iet $eds ≥ 0.5 / 0.2 a #ut max. 2mm
a #ut max. 25mm
7 202 S/rinkage cait, ≥ 0.5 Not permitted 2024 Crater pipe
=/e arger aue of / or $i #e
measured
0.5 to 3
& 3
Not permitted
300
301
302
303
Soid incusions
Sag incusions
9ux incusions
+xide incusions
utt $eds ≥ 0.5 / 0.2 s #ut max. 2mm
s #ut max. 25mm9iet $eds ≥ 0.5 / 0.2 a #ut max. 2mm
a #ut max. 25mm10 304 Metaic incusions
ot/er t/an copper
utt $eds ≥ 0.5 / 0.2 s #ut max. 2mm9iet $eds ≥ 0.5 / 0.2 a #ut max. 2mm
11 3042 Copper incusions
""""""""""""""""""""""""""""""""""""""""""""
≥ 0.5 Not permitted
12 401 (ack of fusion
)incompete fusion*
≥ 0.5 Not permitted
4011 (ack of side $a
fusion
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utt Boint )partia penetration*
utt Boint )partia penetration* ≥ 0.5 Not permitted
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IMPERFECTIONS IN OINT GEOMETRY
1 507 (inear misaignment =/e imits reate to deiations from t/e
correct position. Aness ot/er$ise
speci%ed t/e correct position is t/at
$/en t/e centreines coincide5071 (inear misaignment
#et$een pates
;ates and ongitudina $eds 0.5 to 3
& 3
/ 0.2mm 6 0.1 t
/ 0.1 t #ut max. 3mm
5072 =ranserse, circuar$eds at c,indrica
/oo$ sections
Circumferentia $eds ≥ 0.5 / 0.5 t #ut max. 2mm
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2 -17 ncorrect root gapfor %et $eds
@ap #et$een t/e parts to #e Boined.@aps exceeding t/e appropriate imit
ma, in certain cases #e compensated
for #, a corresponding increase in t/e
t/roat t/ickness.
0.5 to 3
& 3
/ 0.2mm 6 0.1 a
/ 0.5mm 6 0.1 a #ut
max. 2mm
MULTIPLE IMPERFECTIONS1 None Mutipe
imperfections in an,
cross section
/1 6 /2 6 /3 6 /4 F I / 0.5 to 3
& 3
Not permitted
Maximum tota /eig/t of
imperfections!
I / 0.2 t or 0.15 a
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/1 6 /2 6 /3 F I /
2 None ;roBected or cross"
sectiona area in t/e
ongitudina
direction
Case 1 )? & 3*
/1 x 1 6 /2 x 26 /3 x 3 F I / x
≥ 0.5 I / x 4
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Case 2 )? J 3*
h1 x l
1+h
2 x l
2(h2+h
3
2 ) x D+h3 x l
3= Σ h xl
=/e sum of t/e areas I / x s/a #e
cacuated as a percentage to t/e
eauation area p x $p )case 1*
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f ? is smaer t/an t/e s/orter engt/ of
one of t/e neig/#ouring imperfections
t/e fuest connection of t/e t$o
imperfections s/a #e appied to t/e sum
of imperfections )case 2*