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DESIGNATION & SELECTION OF WELDING CONSUMABLES*
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Selections of SMAW Welding Electrodes *
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COVERED ARC WELDING (SMAW) ELECTRODESFast Freeze
ElectrodesCellulosicFast solidification, low rate of deposition,
deep penetration e.g. E6010, E6011Fill-Freeze ElectrodeRutileMedium
rate of deposition, medium penetration e.g. E6012, E6013 Fast-Fill
ElectrodesIron PowderHigh rate of deposition, low penetration,
greater % recovery e.g. E7024 Low Hydrogen ElectrodesBasicLow H2 10
ml/100 g e.g. E7016, E7018*
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Fast Freeze ElectrodesFor Positional WeldingRequire skillFlatter
bead, distinct ripples, light slagUse for:Pipe weldingVertical up
& OverheadMaintainanceGalvanised & plated Deep penetration
application
*
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Fill-Freeze ElectrodeCompromising characteristics of Fast Freeze
& Fast FillFor general welding applicationFor all positional
weldingAble to weld uneven fit-up*
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Fast-Fill ElectrodesFor down-hand (Flat Position)
applicationPlate thickness > 5 mmBead surface smooth, free of
ripples, flat or slight convex, low spatters, heavy slagDrag
welding possibleUse for:Production welds*
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Low Hydrogen ElectrodesUse for:X-ray quality weldCrack sensitive
applications e.g. joint restraintThick plate weldingHigh alloying
elementsPlate having tensile strength > 70,000 psiMulti-passes,
vertical & overhead even with MSFast Fill & Fill freeze
characteristicsDense welds, good notch toughnessGood
ductilitySuitable for HCS & low alloy steelAvailable in sealed
container, require baking*
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AWS SMAW ELECTRODE DESIGNATION AND CODING6013ECurrent/flux
coating
Min.Tensile Strength 60,000 psi1 all position2 flat
positionelectrode*
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High celluloseAWS SMAW Welding Electrode Codes/Designations for
Covered Arc Welding Electrodes
*
DesignationCurrentCovering TypeRemarkEXX10DC+ onlyOrganic 0Fast
freezeEXX11AC or DC+Organic 1Fast freezeEXX12AC or DC-Rutile 2 High
sodium/potassiumFill freezeEXX13AC or DCRutile 3 High titanicFill
freezeEXX14AC or DCRutile, iron powder 4(approx. 30%)Fast
fillEXX15DC+ onlyLow-hydrogen 5 basicLow H2EXX16AC or
DC+Low-hydrogen 6 basicLow H2EXX18AC or DC+Low-hydrogen, iron
powder 7, 8(approx. 25%) basicLow H2Fill FreezeEXX20AC or DCOrganic
+ high iron-oxideFast freeze (downhand)EXX24AC or DCRutile, iron
powder(approx. 50%)Fast fill (downhand)EXX27AC or DCMineral (iron
oxide), iron powder (approx. 50%)Low H2Fast FillEXX28AC or DCLow
hydrogen, iron powder (approx. 50%)Low H2The prefix E designates
electric arc welding electrodeThe first two digits of four-digit
numbers and the first three digits of five-digit numbers indicate
minimum tensile strength:E60XX . 60,000 psi Minimum Tensile
StrengthE70XX . 70,000 psi Minimum Tensile StrengthE110XX ...
110,000 psi Minimum Tensile StrengthThe next-to-last digit
indicates position:EXX1X . All positionsEXX2X . Flat position and
horizontal filletsThe suffix (Example: EXXXX-A1) indicates the
approximate alloy in the weld deposit.
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JIS431DTensile strength 60,000 psi43 kgf/mm23Current/flux
coating
0 all position1 all position2 flat positionelectrode*
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*
Welding RodsWelding PositionPolarityPenetrationBead
AppearanceDuctilityNotch ToughnessD4301IlmeniteF,V,OH,HAC or DC
()DeepGoodGoodGoodD4303Lime TitaniaF,V,OH,HAC or DC
()ExcellentGoodD4311High CelluloseF,V,OH,HAC or DC (+)DeepD4313High
Titanium OxidesF,V,OH,HAC or DC (-)ShallowExcellentD4316Basic Low
HydrogenF,V,OH,HAC or DC (+)ExcellentExcellentD4324Iron powder
TitaniaF, H-FilAC or DC ()ExcellentD4326Iron powder Low H2F,
H-FilAC or DC (+)ExcellentExcellentGoodD4327Iron Powder Iron
OxideF, H-FilF: AC or DC () H-Fil: AC or DC
(-)ExcellentExcellent
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British Standarde.g. E5133 B160 20(H)Process: covered MMA
electrodeFirst group (Table C1)Second group(Table C2 and
C3)Covering (Table C4)Efficiency: % recovery to nearest 10%
(110)Position digit (Table C5)Electrical digit (Table C6)Indicates
hydrogen-controlled (10 ml/100 g)E5133B16020(H)*
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Table C1 First group
Table C2 Second group, first digit
*
Electrode designationTensile strength (N/mm2)Minimum yield
stress (N/mm2)E43430 550330E51510 650360
First digitMinimum elongation (%)Temperature for impact value of
28J (C)E43E510Not specifiedNot
specified12018+2022218032420-2042420-3052420-40
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Table C3 Second group, second digit
Table C4 Covering
*
Second digitMinimum elongation (%)Impact propertiesImpact value
(J)Temperature (C)E43E51E43E510Not specifiedNot specifiedNot
specified122224747+202222247470322224747-204Not relevant18Not
relevant41-3061847-50
AAcid (iron oxide)ARAcid
(rutile)BBasicCCellulosicOOxidisingRRutile )medium-coated)RRRutile
(heavy-coated)SOther types
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Table C5 Position digit
Table C6 Electrical digit
*
1All positions2All positions except vertical-down3Flat and, for
fillet welds, horizontal-vertical4Flat5Flat; vertical-down; and,
for fillet welds, horizontal-vertical9Any position or combination
of positions not classified above
CodeDirect currentAlternating currentRecommended electrode
polarityMinimum open-circuit voltage (V)0Polarity as recommended by
manufacturerNot suitable for use with a.c.1+ or -502-503+504+ or
-705-706+707+ or -908-909+90
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STUDENT HOME ASSIGNMENTIs E6010 Low Hydrogen Welding Electrode?
Why?Suggest which SMAW electrode suitable for welding in 4G. Why?
What type of flux found in E6013. What are the main contents in the
flux?Which electrode suitable for welding thick section of Low
Alloy Steels? Why?*
