CK Tungsten Electrodes

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Tungsten Electrodes

Radioactive Hazards of 2% Thoriated Tungsten Electrodes

download: Material Safety Data Sheet (MS_WORD) here

ISO Color Chart

Type

Part Number

Size

RED

AWS A5.12 EWTh-2
ISO 6848 WT20

2% Thoriated: Best stability at medium currents, good arc starts, medium tendency to spit, medium erosion rate T0207GT2 .020 x 7"
T0407GT2 .040 x 7"
T1167GT2 1/16 x 7"
T3327GT2 3/32 x 7"
T187GT2   1/8 x 7"
T5327GT2 5/32 x 7"

 GOLD

AWS A5.12 EWLa-1.5
ISO 6848 WL15

1.5% Lanthanated: Lowest erosion rate, wide current range, no spitting, best DC arc starts and stability T0207GL .020 x 7"
T0407GL .040 x 7"
T1167GL 1/16 x 7"
T3327GL 3/32 x 7"
T187GL   1/8 x 7"
T5327GL 5/32 x 7"

GRAY

AWS A5.12 EWCe-2
ISO 6848 WC20

2% Ceriated: Low erosion rate, wide current range, AC or DC, no spitting, consistent arc starts, good stability T0207GC2 .020 x 7"
T0407GC2 .040 x 7"
T1167GC2 1/16 x 7"
T3327GC2 3/32 x 7"
T187GC2   1/8 x 7"
T5327GC2 5/32 x 7"

 WHITE

AWS A5.12 NONE
ISO 6848 WZ8

.8% Zirconiated: Balls well, handles higher current with less spitting, better arc starts and arc stability than pure tungsten T0207GZ .020 x 7"
T0407GZ .040 x 7"
T1167GZ 1/16 x 7"
T3327GZ 3/32 x 7"
T187GZ   1/8 x 7"
T5327GZ 5/32 x 7"

 GREEN

AWS A5.12 EWP
ISO 6848 WP

Pure: Balls easily, low cost, tends to spit at higher currents, used for non-critical welds only T0207G .020 x 7"
T0407G .040 x 7"
T1167G 1/16 x 7"
T3327G 3/32 x 7"
T187G   1/8 x 7"
T5327G 5/32 x 7"
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