CHART 1 — Select tungsten diameter and alumina nozzle based on current and application.

TYPICAL CURRENT RANGES FOR TUNGSTEN ELECTRODES (1)

 

 

DCEN (-)

DCEP (+)

 

 

 

 

AC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balanced Wave

 

 

Unbalanced Wave

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tungsten

Pure and

Pure and

 

 

1%, 2%

 

 

 

1%, 2%

 

Electrode

1%.

2%

1%, 2%

 

 

Thoriated

 

 

 

Thoriated

Alumina

Diameter

Thoriated

Thoriated

Pure

Tungsten

 

Pure

Tungsten

Nozzle

in. (mm)

Tungsten

Tungsten

Tungsten

Zirconiated

 

Tungsten

Zirconiated

Size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.020

(0.5)

5-

20

(2)

10-

20

5-

20

 

5-

15

5-

20

4, 5, 6

0.040

(1.0)

15-

80

(2)

20-

30

20-

60

 

10-

60

15-

80

4, 5, 6

1/16

(1.6)

70-

150

10-20

30-

80

60- 120

 

50- 100

70- 150

5, 6

3/32

(2.4)

150-

250

15-30

60- 130

100- 180

 

100- 160

140- 235

6, 7, 8

1/8

(3.2)

250-

400

25-40

100- 180

160- 250

 

150- 210

225- 325

6, 7, 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)With argon gas.

(2)DCEP (+) is not commonly used in these sizes.

CHART 2 — Select Collet/Collet Body or Gas Lens Collet Body based on tungsten diameter and application.

Tungsten

 

 

Gas Lens

Electrode

Collet

Collet Body

Collet Body

Diameter

Part No.

Part No.

Part No.

in. (mm)

(Industry Ref.)

(Industry Ref.)

(Industry Ref.)

 

 

 

 

0.020 (0.5)

S19497-1

S19499-1

S19501-1

 

 

(13N20)

(13N25)

(45V41)

0.040 (1.0)

S19497-2

S19499-2

S19501-2

 

 

(13N21)

(13N26)

(45V42)

1/16

(1.6)

S19497-3

S19499-3

S19501-3

 

 

(13N22)

(13N27)

(45V43)

 

 

 

 

 

3/32

(2.4)

S19497-4

S19499-4

S19501-4

 

 

(13N23)

(13N28)

(45V44)

1/8

(3.2)

S19497-5

S19499-5

S19501-5

 

 

(13N24)

(13N29)

(45V45)

 

 

 

 

 

CHART 3 (Alumina Gas Nozzle) — Select alumina gas nozzle orifice size based on application.

Standard gas nozzle, 1-5/32” (29.3mm) long, or gas lens, 1” (25.4mm) long.

Nozzle

 

 

 

Orifice

Size

Standard Nozzle

Gas Lens

Diameter

(16th of

Part No.

Part No.

in. (mm)

an inch)

(Industry Ref.)

(Industry Ref.)

1/4

(6)

4

S19368-1

S19370-1

 

 

 

(13N08)

(53N58)

 

 

 

 

 

5/16

(8)

5

S19368-2

S19370-2

 

 

 

(13N09)

(53N59)

 

 

 

 

 

3/8

(10)

6

S19368-3

S19370-3

 

 

 

(13N10)

(53N60)

 

 

 

 

 

7/16

(11)

7

S19368-4

S19370-4

 

 

 

(13N11)

(53N61)

 

 

 

 

 

1/2

(12.5)

8

S19368-5

 

 

 

(13N12)

 

 

 

 

 

 

5/8

(16)

10

S19368-6

 

 

 

(13N13)

 

 

 

 

 

 

Page 7
Image 7
Lincoln Electric LA-9, LA-26V, LA-17V manual Typical Current Ranges for Tungsten Electrodes

LA-26V, LA-9, LA-26, LA-17, LA-17V specifications

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