Current Carying Capability

Diameter Current 5 10 15 20 25 30 35 40 50 60 70 80 100 120 130 150
mm in
0.25 0,01 AC WP
WZr3
DC WT20
Diameter Current 5 10 15 20 25 30 35 40 50 60 70 80 100 120 130 150
mm in
0.5 0,02 AC WP
WZr3
DC WT20
Diameter Current 5 10 15 20 25 30 35 40 50 60 70 80 100 120 130 150
mm in
1.0 0.04 AC,
imbalanced		 WP 10-80
WZr3
WZr8
WT20 10-80
WL15 10-80
AC,
balanced		 WP 20-60
WZr3
WZr8
 WT20 20-60
WL15 20-60
DCEN WZr3
WZr8
WT20 15-80
WL15 15-80
DCEP
Diameter Current 5 10 15 20 25 30 35 40 50 60 70 80 100 120 130 150 160 180 190  200
mm in
1.6 1/16 AC,
imbalanced		 WP 50-120
WZr3
WZr8
WT20 50-120
WL15 50-120
WC20 50-120
AC,
balanced		 WZr3
WZr8
WT20 40-100
WL15 40-100
WC20 40-100
DCEN WZr3
WZr8
WT20 60-150
WL15 60-150
WC20 60-150
DCEP WZr3  10-18
WZr8 10-18
WT20 10-18
WL15 10-18
WC20 10-18
Diameter Current 5 10 15 20 25 30 35 40 50 60 70 80 100 120 130 150 160 180 190 200 250 300
mm in
2.0 5/64 AC,
imbalanced
WZr3
WZr8
WT20 70-160
WT15 70-160
WC20 70-160
AC,
balanced		 WZr3
WZr8
WT20 60-130
WL15 60-130
WC20 60-130
DCEN WZr3
WZr8
WT20 100-200
WL15 100-200
WC20 100-200
DCEP WZr3 12-20
WZr8 12-20
WT20 12-20
WL15 12-20
WC20 12-20
Diameter Current 5 10 15 20 25 30 35 40 50 60 70 80  100 120 130 150 160 180 190 200 250 300 320 400 500 1000
mm in
2.4 3/32 AC WP
WZr3
DC WT20
Diameter Current 5 10 15 20 25 30 35 40 50 60 70 80  100 120 130 150 160 180 190 200 250 300 320 400 500 1000
mm in
3.2 1/8 AC WP
WZr3
DC WT20
Diameter Current 5 10 15 20 25 30 35 40 50 60 80 120 130 150 180 190 250 300 320 400 500 1000
mm in
4.0 5/32 AC WP
WZr3
DC WT20
Diameter Current 5 10 15 20 25 30 35 40 50 60 80 120 130 150 180 190 250 300 320 400 500 1000
mm in
4.8 3/16  AC WP
WZr3
DC WT20
Diameter Current 5 10 15 20 25 30 35 40 50 60 80 120 130 150 180 190 250 300 320 400 500 1000
mm in
6.4 1/4  AC WP
WZr3
DC WT20
Diameter Current 5 10 15 20 25 30 35 40 50 60 80 120 130 150 180 190 250 300 320 400 500 1000
mm in
8.0 5/16  AC
DC
Designation
according ISO 6848		 Common name Dioxide Dioxide, % Colour mark Pros Cons Suitable for
DCEN DCEP AC
WP Pure Green Stable arc in AC welding;
Good resistance to contamination
Maintains balled end;
Least expensive		 Low current handling capacity + – +
WT10 1 %
thoriated		 ThO2 0.90-1.20 Yellow
WT20 2%
thoriated		 ThO2 1.70-2.20 Red Easy arc starting;
Good arc stability;
High resistance to weld pool contamination		 Hard to maintain balled end on AC welding + – –
WZr3 0.3 %
zirconated		 ZrO2 0.15-0.50 Brown Good arc starting;
High resistance to contamination;
Excellent retention of balled end on AC welding		 + + +
WZr8 0.8 %
zirconated		 ZrO2 0.70-0.90 White
WL10 1 %
lanthanated		 La2O3 0.90-1.20 Black
WL15 1.5 %
lanthanated		 La2O3 1.40-1.60 Gold Easy arc starting;
Good arc stability;
Long life;
High current capacity
WL20 2 %
lanthanated		 La2O3 1.90-2.10 Blue
WC20 2 %
ceriated		 CeO2 1.80-2.20 Grey Easy arc starting at low current;
Good arc stability;
Long life;

An excellent selection for thin sheet metal work or jobs where small and delicate parts are welded.