Evening star. [volume] (Washington, D.C.) 1854-1972, 1956-04-10
OFFICIAL NOTICES


ASME Code or on material
or In thickness Of plate that
is not permitted within his quail
hcstion tests c. Groove Yields shall
completely, penetrate the material
shall be applied iron both sides
o. tht plate, or d bacKiui strip
or ring may be used 10 insure
complete penetration Yields hall
SIDES i applied on ! bot both G Sides 50t o.
me plates beng ioIneC OF on
one side Il welding is applied from
one side only Valleys and under
cutting al edges OF welded JOINTS
nal not be permitted. Thc re-
lround o. machined of nlsh " KIN
tlc base metal II 50 desired, alter
thc welding has been gCmpIcteG
In ma Elrs a repair TO d weld
tndi has ialieG IL service. She
defective weld material shall De
removed by chipping or sriudlnL
until soma metal is reached on d
SIDE The resulting groove shall
Dc hlieo a required By the app
cable Ne4dIne procedure e In
the repair Of carbon or low ALLOW
S.eeis, when required bv these
rules and when considered ncrC -
sary by The authorized inspector.
thermal stress relieving shall he
r. J
neat may De applied by any means
fhal VII -alsg the IemperAL
OF me material gradually and uni
-9Im!y TO approximately l2OU-F.
IN the absence 81 nor, accurate
means o! determining Temperature,
gun !eo glow N daylight viii
Slfflce } This tempeTatuIe shall be
Malntalned Tor period OF one
ho9r per inen OF thickness u
FONTS. the area hea,od snail CUH-
PRISE a band extending completely
arouno the cvlndcy and having
Nldth on each SIDE of the center
nne OF the we'd not less than
.ie AnlsAeG weld, For nollles.
the heated area shall comprise a
circlm;ereatial band extending
around the entire ,eSse!. Including
me. no21Ie or welded Attachment
ana aIidl e&ienG at least TX times
ne piate thickness BEYOND tkr
We4clne which connects the nozzle
Or other attachment to the vessel.
~ mould b. noted that under
certain conditions, thermal stress
De .uadNlsstle II such cases any
u'her method OF stTeSs relieving
alceptaBle 70 the authorized in
,ptCjof may be usco Unuef Ger.
,ahl connexions prencatins may be
necessary upon completion OF TIE
atfeSs-roEevlng operation. the plate
snail be allowed To cool al a
rare not sreateE than JOUoF per
honr clYloed BY the maximum
tAicEnesS OF the welded part in
inches. but in 10 case more thsn
'.V-F per hour This rate az
COOLING shall be maintained until
l.mpeEaturt O.! APPROXIMATELY
.'Vu~f IS reached, after winch
81. atmosphere may oe per
AiileG. u. RULES FOR WELL ED
htPAIRS On BOILERS AND UN
EElRED PRESSURE VESSELS. a
1IacE. ~ stavec areas NAV oe
tpaiTeG gy welding. except that
nA!.iple Q. star cracks racilatif,c
from rive. or stay bolt noles slaH
no; De welded g. Cracks IN u
S!aEeG shells drums O. heaocrs
re repaired by Welding PROVIDED
the cracks do not extend between
i,'el hoies in a longitudinal eean
O. phFdde! TO lOngituClns!
rj5etco seam within INCHES.
INK edge, The total length OF any
orr ucA crack shall not exceed
inches Cracks OF greater LENGTH
NAV be welded provided the con
pete repair Is photographed and
reSs- relieved All cracks mat may
pe welded shall be- properly rre.
pared 70 permit fusion through
me entire plate e. Cracks ok
any length IA QnStaEeC Furnaces
nay pe welded, provided the Yields
shall! De applied from both sizes
.! me plate wherever possible
YIELDS applied from both sides az
lne plate wherever possible Neldx
sppi!eo from one siGe only may
De used only II expressly permitted
tE ne inspector Repair Of cracks
~ the Knuckie OF turn Of fangs
u furnace openings are prohibited
except upon special app-ova' bv
}ne INSPECTOR, d Corroded areas
mainline plate ka All n'grt'r
'hitkncsS Of not lss han 40 pe-
, rH5' , 2i NE or.glna thlc6ness.
AREA SO affected are not sam
GENTLY extensive 10 irrpair Ne
safety Of The object In such cases
ne .aNS and stay bolts Shati cone
gompletely through tho re.ntorr-
I9S meta. and the original ENDS
visible to thc inyper'or
torrodcd area around manholcs
o. handhole openings in etthr-
s,aEed o. lnstaEed plates. Aav
average loss OF thickness does no;
rXtecd - per cent o! The original
Plate Thickness and tho area H.
9e repaired does NOT extend mugr
.tfN % a4lt iIs~ iEtNI
n" hole Corrodcd area +,
Gns'ayed shells drums or headers
may be built up by welding pru.
'ir"C nat IN tNt tuucn.rDt ~
ne inspector the strength OF the
EDGES Of butt trans q, nl5,s
!dp" ana no2zies or Of connections
attached by rivrtiuz may bp r.
stored 20 thru Original Thickness
hy Welding seal welding shall NOT
pioval Of he Inspector. and IN
ne case where crack arC nrrsrft
IN rivftec arcs> 4 The ends
az l49cs on hre-tube and water
.l.bt boiler nav be ,ea welded
provided they have not been re-
dnreo more tran 10 per cont N
thictness, and comply with NE
requirements d Paragraphs p-"1u
ano Pol u the A 5 NJ + Power
h s9,if, C9dr Rc-encinr or
hreiu0" or watfr-tube boilers ShaN
DC permitted provided the thickness
OF the tube or pine has not bcrn
EGeanceG by more han 10 per. cent
the S VI F code for the pres.
>1tc approved In all cases tLcy
shall comply with the REQUIREMENTS
Of paAeraph p-ll@ OF the
!he material used for patches
nal, he of the same general oual-
itt and have al least the miNf.
mum phTsical properties 0l the
pate 10 be patched The thickness
o. any patch shall be AZ least
inch greater thar the plate being
patched X Plush or butt welded
nai.hc IN unSlaycd shells. drums
Or blenders shall not be permitted.
% neg sections may be applied 20
fapped Of faIct welded t''a IS"'1 patche q
insy " applied 60 tsved plates
radiant heat Tapped and hlct.
welded patchcs may be applied
on the pressure side Of Tho sheet
"a un stayed areas provided tho
maximum diameter Of the npcr-
~ times The thickness Of the
plate, but IN no case larger than
) inches IN diameter H. THREADED
tiays may be replaced hy Welded
Judgment Of the inspector Tie
plate adjacent 60 the stay bolts
Naa not been WJicrIallv weakened
hr deterioration or WaS'ape Al
yggra!HtiaI,ermtn! .,oi the ,,agphcsbIe
governing wclded-in stays shall br
complied wrh PENALTY Any
contractor OH WpIder. found guil'v
81 doing NrldinE On boiler or
pressure le.arl r.thaui haWng a
Neidiug In The District OF Columbia
or OF Welding or Il boiler or uu-
lfcd pressure rcSsel without hsv.
ms been authorized 90 do 10 hg
',lbiScIt Ia IL tHe '' ncg9slty' eonGaippS
in section Il, ~ tie Act In al.
ditiou be shall he subject "a HAY
ny 'la catg, g! AUTHORIZATION .e-