Quality Level B

8/9/2019 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



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



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


/ 0.05 t #ut max. 0.5



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


/ 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*


1 517 ;oor restart """""""""""""""""""""""""""""""""""""""""""""""" ≥ 0.5 Not ;ermitted



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

""""""""""""""""""""""""""""""""""""""""""""""""


23 -02 Spatter

""""""""""""""""""""""""""""""""""""""""""""""""

≥ 0.5 >cceptance depends on

appication e.g. materia

corrosion protection24 -10 =emper coour

)?iscoouration*

""""""""""""""""""""""""""""""""""""""""""""""""


appication e.g. materia



corrosion protection.

INTERNAL IMPERFECTIONS

1 100 Cracks > t,pes of cracks except microcracksand crater cracks


2 1001 Microcracks > crack usua, on, isi#e under t/e

microscope )50x*


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



" 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



a #ut max. 25mm



- 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

""""""""""""""""""""""""""""""""""""""""""""


12 401 (ack of fusion

)incompete fusion*


4011 (ack of side $a

fusion



utt Boint )partia penetration*

utt Boint )partia penetration* ≥ 0.5 Not permitted



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



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



/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



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*



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*

Quality Level B

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