Page 89 - ProStar Product Guide

E3 Tungsten Electrodes

E3 Electrodes Run Much

Cooler, Extending Tip Life

Electrodes run approx 1,650 °F cooler than
2% thoriated at the same output energy

2% Thoraited

• Longer life ARC ACCESSORIES
• Stable tip & arc geometry

• Best choice to replace
thoriated electrodes
• Non-radioactive additives • AWS Spec. A5.12M/A5.12:2009

• Proven to outperform • AWS Class. EWG
• Color Code: Purple
other electrodes
• Chemical Specification: 98.34% W
• Can be used in both • (tungsten) + 1.5%
La2O3 + .08% ZrO2 + .08% Y2O3
DC & AC processes Size Qty/Pack E3 Part No.
.020" x 7" 10 PRS400207E3
3 PRS400407E3-3
.040" x 7"
2000 10 PRS400407E3
1750 1/16" x 3" 10 PRS401163E3
EWTh-2 3 PRS401167E3-3
1500 1/16" x 7"
10 PRS401167E3
1250 1/16" x 12" 10 PRS4011612E3
1000 1/16" x 18" 10 PRS4011618E3
3/32" x 3" 10 PRS403323E3
750 3 PRS403327E3-3
3/32" x 7"
500 10 PRS403327E3
3/32" x 12" 10 PRS4033212E3
250
Ignition Delay (ms)
3/32" x 18" 10 PRS4033218E3
0 3 PRS40187E3-3
1/8" x 7"
0 20 40 60 80 100 10 PRS40187E3
Number of Arc Starts 5/32" x 7" 10 PRS405327E3
3/16" x 7" 5 PRS403167E3-5
3/16" x 12" 5 PRS4031612E3-5
Testing has shown that ignition delay with E3 actually improves over
time, while thoriated tungsten begins to deteriorate after only 25 starts.

STARTS FASTER
MAINTAINS A STABLE ARC! www.prostar-e3.com

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