Chart 1, Chart 2, Chart 3 – Lincoln Electric IM683 PRO-TORCH WATER-COOLED PTW-20,18,250,350 User Manual
Page 8: Typical current ranges for tungsten electrodes
1/4
(6)
5/16
(8)
3/8
(10)
7/16
(11)
1/2
(12.5)
5/8
(16)
11/16
(17)
CHART 1 –
Select tungsten diameter and alumina nozzle based on current and application.
CHART 2 –
Select Collet/Collet body or Gas Lens Collet body (requires insulator) based on
tungsten diameter and application.
CHART 3
(Alumina Gas Nozzle)
–
Select alumina gas nozzle orifice size based on application.
Standard gas nozzle, 1-27/32” (46.8mm) long, or gas lens,
1-5/8” (41.2mm) long.
TYPICAL CURRENT RANGES FOR TUNGSTEN ELECTRODES
(1)
Tungsten
Electrode
Diameter
in. (mm)
Pure and
Alloyed
Tungsten
DCEN (-)
Pure
Tungsten
Tungsten
Alloys
Pure
Tungsten
Balanced Wave
AC
Unbalanced Wave
Tungsten
Alloys
Alumina
Nozzle
Size
0.020 (0.5)
0.040 (1.0)
1/16
(1.6)
3/32
(2.4)
1/8
(3.2)
5/32
(4.0)
5 - 20
15 - 80
70 - 150
150 - 250
250 - 400
400 - 500
10 - 20
20 - 30
30 - 80
60 -130
100 -180
160 -240
5 - 20
20 - 60
60 -120
100 -180
160 -250
200 -320
5 - 15
10 - 60
50 -100
100 -160
150 -210
200 -275
5 - 20
15 - 80
70 -150
140 -235
225 -325
300 -400
4, 5, 6
4, 5, 6
5, 6
6, 7, 8
6, 7, 8
8, 10
(1)
With argon gas.
(1)
Not recommended for use with high frequency current.
Tungsten
Electrode
Diameter
in. (mm)
Collet
Part No.
(Industry Ref.)
Collet Body
Part No.
(Industry Ref.)
Gas Lens
Collet Body
Part No.
(Industry Ref.)
0.020
(0.5)
0.040
(1.0)
1/16
(1.6)
3/32
(2.4)
1/8
(3.2)
5/32
(4.0)
KP2030-1B1 (10N21)
KP2030-2B1 (10N22)
KP2030-3B1 (10N23)
KP2030-4B1 (10N24)
KP2030-5B1 (10N25)
KP2030-6B1 (54N20)
KP2032-1B1 (10N29)
KP2032-2B1 (10N30)
KP2032-3B1 (10N31)
KP2032-4B1 (10N32)
KP2032-5B1 (10N28)
KP2032-6B1 (406488)
KP2034-1B1 (45V29)
KP2034-2B1 (45V24)
KP2034-3B1 (45V25)
KP2034-4B1 (45V26)
KP2034-5B1 (45V27)
KP2034-6B1 (45V28)
Nozzle Orifice
Diameter
in. (mm)
Size
(16th of an inch)
Standard Nozzle
Part No.
(Industry Ref.)
Gas Lens
Part No.
(Industry Ref.)
4
5
6
7
8
10
Short
KP2016-6B1 (10N50)
KP2016-5B1 (10N49)
KP2016-4B1 (10N48)
KP2016-3B1 (10N47)
KP2016-2B1 (10N46)
KP2016-1B1 (10N45)
––
KP2018-5B1 (54N18)
KP2018-4B1 (54N17)
KP2018-3B1 (54N16)
KP2018-2B1 (54N15)
KP2018-1B1 (54N14)
––
KP2018-6B1
(1)
(54N19)
(1)
5