smcs

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• SHIELDED METAL ARC WELDING ELECTRODES

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WHAT IS AN ELECTRODE?

• An electrode is used to conduct current through a
  work piece to fuse two pieces together.

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PARTS OF ELECTRODES

• CORE WIRE- The metal part
• FLUX OR COATING- The outer layer part

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TYPES OF ELECTRODES

• E-6010
• E-6011
• E-6013
• E-7018
• E-7024

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USES APPLICATION

• E6010 - An aggressive, digging rod that is DC
  only does not weld on AC and some inverters do
  not burn this rod well. This is a digging
  penetrating rod and is designed for putting the
  root bead on the inside of a piece of pipe.

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USES APPLICATION

• E6011 - This electrode is used for all-position
  AC welding or for welding on rusty, dirty,
  less-than-new metal.

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USES APPLICATION

• 6013 - This is an all-position, AC or DCEP
  electrode used by farmers for years. It makes a
  smooth bead but does not dig through rust or
  paint. for welding clean, new sheet metal.

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USES APPLICATION

• E7018 - This welding electrode is used for pipe
  welding and structural steel welding and all
  kinds of repair welding. A low-hydrogen, usually
  DC, all-position electrode used when quality is
  an issue or for hard-to-weld metals.

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USES APPLICATION

• E7024 - Typically used to make a large weld with
  AC or DCEP in plate that is at least ¼" thick,
  This rod is only for flat and horizontal
  weldingforget about using it for overhead or
  vertical up.

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CURRENT SETTINGS
ROD SIZE Amperage range ROD SIZE Amperage range ROD SIZE Amperage range Ave. current setting
E6010 1/8 Suggested Amperage Range 75-125 100
E6011 5/32 Suggested Amperage Range 65-100 82.5
E6013 1/8 Suggested Amperage Range 80-130 105
E7018 3/32 Suggested Amperage Range 110-165 137.5
E7024 1/8 Suggested Amperage Range 140-190 165
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AWS ELECTRODE CLASSIFICATION
The core wire conduct current of the welding arc
and supplies the filler metal to produce the weld.
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AWS ELECTRODE CLASSIFICATION
The heat of welding brakes the flux welding down
to produce the shielding gas to protect the arc
and molten weld puddle from oxygen and nitrogen
in the atmosphere.
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E6011 Deep penetrating
electrode. E6012 Mild penetrating
electrode.
AWS ELECTRODE CLASSIFICATION
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AWS ELECTRODE CLASSIFICATION
E6013 Mild penetrating electrode. E7024
High deposition electrode.
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AWS ELECTRODE CLASSIFICATION
Mild steels E7018-HR4 Low alloy steels
E8018-B2L Stainless steels E308L-16 Cast
iron ENi-Ci
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AWS ELECTRODE CLASSIFICATION For mild electrode
E6010 E6011 E6012 E6013 E7018
E7024 E6010 Electrode for
electric arc welding E11018
Min. tensile strength of deposit weld (psi).

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AWS TENSION TEST REQUIREMENTS
E60XX 60,000 Psi E70xx 70,000
psi E80xx 80,000 psi E90xx 90,000
psi E100xx 100,000 psi E110xx 110,000
psi
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AWS ELECTRODE CLASSIFICATION
E6010 E11010 WELDING POSITION 1 All position 2
Flat and horizontal fillet welds 3 Flat
position only 4 Flat, horizontal, overhead and
vertical down
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AWS ELECTRODE CLASSIFICATION
E6010 E11010 0 Cellulose sodium, DCEP 1
Cellulose potassium, AC or DCEP 2 Titania
sodium, AC or DCEN 3 Titania potassium, AC,
DCEP,DCEN
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AWS ELECTRODE CLASSIFICATION
4 Iron powder titania, AC, DCEP, DCEN 5 Low
hydrogen sodium, DCEP 6 Low hydrogen potassium,
AC, DCEP 7 Iron powder iron oxide, AC, DCEP,
DCEN 8 Iron powder low hydrogen, AC or DCEP
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AWS ELECTRODE CLASSIFICATION ADDITIONAL
REQUIREMENTS
Exxxx-1 Increase thickness/Infact
strength Exxxx-H4R The max. of fuse low hydrogen
limits/4mm/400grams/absorb moisture
test. Exxxx-B2 Indicate chemical composition of
deposit weld Exxxx-D2 Indicate chemical
composition of deposit weld
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AWS ELECTRODE CLASSIFICATION

• E6010
• 60 60,000 psi
• 1 all position
• 0 Cellulose sodium ,DCEP
• E7024
• 70 70,0000 psi
• 2Flat and horizontal fillet welds
• 4 Iron powder titania, AC, DCEP, DCEN

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F GROUP FOR MILD AND LOW ALLOY STEEL F GROUP FOR MILD AND LOW ALLOY STEEL F GROUP FOR MILD AND LOW ALLOY STEEL
GROUP CHARACTERISTICS AWS CLASSIFICATION
F1 HIGH DEPOSITION EXX20, EXX24 EXX27, EXX28
F2 MILD PENETRATING EXX12, EXX13 EXX14
F3 DEEP PENETRATING EXX10, EXX11
F4 ALL POSITION LOW HYDROGEN EXX15, EXX16 EXX18
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CRITERIA FOR SELECTING ELECTRODES
Tensile strength The capacity of metal to
resist being pulled apart.
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TENSILE STRENGTH
Match to base metal or match the min. of tensile
strength of the electrode to the tensile strength
of the base metal. How ever if you working low
alloy steel in E60 type of electrodes should be
sufficient because to produce weld with the min.
tensile strength of 60 thousand per square inch.
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CRITERIA FOR SELECTING ELECTRODES
Base metal composition - match the electrode to
the base metal to ensure sound weld. There are
several test you can make to determine the base
metal composition with the reasonable degrees of
the certainty.
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IDENTIFICATION OF METALS
Ferrous and Non-Ferrous Metals
Ferrous metals are metals having a high iron
content and they are usually magnetic.
Non-ferrous metals are those metals which contain
no appreciable amount of iron, these include
copper, nickel, aluminum, etc.
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MELTING TEMPERATURE OF METALS MELTING TEMPERATURE OF METALS
Non-Ferrous Temperature
Bronze Copper Aluminum White metal Lead Silver brazing alloys 1655?-(902?) 1980?-(1082?) 1260?-(682?) 700? -(371?) 620? -(327?) 1140 to 1300 ?-(615 to 704?)
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MELTING TEMPERATURE OF METALS MELTING TEMPERATURE OF METALS
Ferrous Temperature
Wrought iron 15 carbon steel 60 carbon steel Iron oxide Cast iron Stainless Steel 2800? -(1538?) 2750? -(1510?) 2600? -(1427?) 2460? -(1348?) 2400? -(1316?) 2640? -(1449?)
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Thank you and God Bless US