Chart 8, Chart 7, Chart 9 – Lincoln Electric IM682 PRO-TORCH AIR-COOLED TIG TORCHES PTA-9,17,26 User Manual
Page 10: Typical current ranges for tungsten electrodes
CHART 8 –
Select Collet/Collet body or Gas Lens Collet body (requires insulator) based on
tungsten diameter and application.
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)
1/4
(6)
5/16
(8)
3/8
(10)
7/16
(11)
1/2
(12.5)
5/8
(16)
11/16
(17)
CHART 7 –
Select tungsten diameter and alumina nozzle based on current and application.
CHART 9
(Alumina Gas Nozzle)
–
Select alumina gas nozzle orifice size based on application.
Standard gas nozzle, 1-27/32” (48.6mm) long, or gas lens,
1-5/8” (41.2mm) long.
TYPICAL CURRENT RANGES FOR TUNGSTEN ELECTRODES
(1)
Tungsten
Electrode
Diameter
in. (mm)
Pure and
1%, 2%
Thoriated
Tungsten
Pure and
1%, 2%
Thoriated
Tungsten
DCEN (-)
DCEP (+)
Pure
Tungsten
1%, 2%
Thoriated
Tungsten
Zirconiated
Pure
Tungsten
Balanced Wave
AC
Unbalanced Wave
1%, 2%
Thoriated
Tungsten
Zirconiated
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
(2)
(2)
10 - 20
15 - 30
25 - 40
40 - 55
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.
(2)
DCEP (+) is not commonly used in these sizes.
(1)
Size “short” is 1-1/8” (28.5mm) long.
(2)
Not recommended for use with high frequency currents.
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
(2)
(54N19)
(2)