| |
Specifications & Dimensions
Length of Graphite Electrodes
Diameter of Graphite Electrodes
Electrode Joining System
Typical Properties
UHP Grade Electrodes
Connecting Pins
Current Capacity Range
Shipment Data
Stringerized Shipments (Truck)
Conversion Factors
International System (SI) Units
|
| Length of Graphite Electrodes |
| Nominal
Length |
Standard
Length
|
Short
Length
|
|
Inches
|
(mm)
|
Inches
|
(mm)
|
Inches*
|
(mm)*
|
|
110
|
(2700)
|
114.0
to 100.4
|
(2895
to 2550)
|
100.4
to 94.5
|
(2550
to 2400)
|
|
96
|
(2400)
|
99.0
to 89.6
|
(2515
to 2275)
|
89.6
to 83.7
|
(2275
to 2125)
|
|
84
|
(2100)
|
87.0
to 77.8
|
(2210
to 1975)
|
77.8
to 71.9
|
(1975
to 1825)
|
|
72
|
(1800)
|
75.0
to 66.9
|
(1905
to 1700)
|
66.9
to 60.0
|
(1700
to 1525)
|
|
60
|
(1500)
|
63.0
to 55.1
|
(1600
to 1400
|
55.1
to 48.2
|
(1400
to 1225)
|
| * Due to manufacturing variables, a small percentage of electrodes may have the minimum lengths given in this column. |
| Upon request, C/G Electrodes is able supply electrode lengths greater than the maximum standard lengths listed above. |
| Diameter of Graphite Electrodes |
| Nominal
|
Maximum
|
Minimum
|
Low
Spot |
|
Inches
|
(mm)
|
Inches
|
(mm)
|
Inches |
(mm) |
Inches
|
(mm)
|
|
28
|
(700)
|
28.12
|
(714.3)
|
27.88 |
(708.2) |
27.76
|
(705)
|
|
26
|
(650)
|
26.12
|
(663.6)
|
25.88 |
(657.2) |
25.75
|
(654)
|
|
24
|
(600)
|
24.12
|
(612.7)
|
23.88 |
(606.6) |
23.78
|
(604)
|
|
22
|
(550)
|
22.12
|
(561.9)
|
21.88 |
(555.8) |
21.77
|
(553)
|
|
20
|
(500)
|
20.12
|
(511.1)
|
19.88 |
(505.0) |
19.76
|
(502)
|
| 18 |
(450) |
18.12 |
(460.3) |
17.88 |
(454.2) |
17.76 |
(451) |
| Remarks: The outside surface shall be machine finished. On the outside surface finishing, any part which the tool edge does not touch is called a low spot. For a turned electrode having a low spot, the minimum diameter shall be according to the above table. |
| Electrode Joining System |
|
Nom.
Electrode
Diameter
|
IEC
|
Nom.
Connecting Pin
Major Dia. x Length |
Threads |
Electrode
Socket
Minor Dia. x Min. Depth |
|
Inches
|
(mm)
|
Designation
|
Inches
|
(mm) |
#
/ in. |
Inches
|
(mm)
|
|
28
|
(700) |
374T4L |
14.75
x 22.0 |
(374.65
x 558.8)
|
4 |
14.5010
x 11.1875 |
(368.33
x 284.16)
|
| 28 |
(700) |
374T4N |
14.75
x 18.0 |
(374.65
x 457.2)
|
4 |
14.5010
x 9.1875 |
(368.33
x 233.36)
|
| 26 |
(650) |
374T4L |
14.75
x 22.0 |
(374.65
x 558.6)
|
4 |
14.5010
x 11.1875 |
(368.33
x 284.16)
|
| 26 |
(650) |
374T4N |
14.75
x 18.0 |
(374.65
x 457.2)
|
4 |
14.5010
x 9.1875 |
(368.33
x 233.36)
|
| 24 |
(600) |
317T4L |
12.5
x 18.0 |
(317.5
x 457.2)
|
4 |
12.2510
x 9.1875 |
(311.18
x 233.36)
|
| 24 |
(600) |
317T4N |
12.5
x 14.0 |
(317.5
x 355.6)
|
4 |
12.2510
x 7.1875 |
(311.18
x 182.56)
|
| 22 |
(550) |
298T4L |
11.75
x 18.0 |
(298.45
x 457.2)
|
4 |
11.5010
x 9.1875 |
(292.13
x 233.36)
|
| 22 |
(550) |
298T4N |
11.75
x 14.0 |
(298.45
x 355.6)
|
4 |
11.5010
x 7.1875 |
(292.13
x 182.56)
|
| 20 |
(500) |
298T4L |
11.75
x 18.0 |
(298.45
x 457.2)
|
4 |
11.5010
x 9.1875 |
(292.13
x 233.36)
|
| 20 |
(500) |
269T4L |
10.625
x 18.0 |
(269.88
x 457.2)
|
4 |
10.3760
x 9.1875 |
(263.55
x 233.35)
|
| 20 |
(500) |
269T4N |
10.625
x 14.0 |
(269.88
x 355.6)
|
4 |
10.3760
x 7.1875 |
(263.55
x 182.56)
|
| 20 |
(500) |
273T3L |
10.75
x 18.0 |
(273.0
x 457.2)
|
3 |
10.4180
x 9.1875 |
(264.62
x 233.36)
|
| 20 |
(500) |
273T3N |
10.75
x 14.0 |
(273.05
x 355.6)
|
3 |
10.4180
x 7.1875 |
(264.62
x 182.56)
|
| 18 |
(450) |
273T3L |
10.75
x 18.0 |
(273.05
x 457.2)
|
3 |
10.4180
x 9.1875 |
(264.62
x 233.36)
|
| 18 |
(450) |
269T4L |
10.625
x 18.0 |
(269.88
x 457.2)
|
4 |
10.3760
x 9.1875 |
(263.55
x 233.36)
|
| 18 |
(450) |
269T4N |
10.625
x 14.0 |
(269.88
x 355.6)
|
4 |
10.3760
x 7.1875 |
(263.55
x 182.56)
|
| 18 |
(450) |
241T4L |
9.5
x 14.0 |
(241.30
x 355.6)
|
4 |
9.1680
x 7,1875 |
(232.87
x 182.56)
|
| 18 |
(450) |
241T3L |
9.5
x 14.0 |
(241.30
x 355.6)
|
3 |
9.1680
x 7.1875 |
(232.87
x 182.56)
|
| UHP Grade Electrodes |
| Diameter
|
Apparent
Density
|
Specific
Resistance
|
Flexural
Strength Longitudinal |
|
(inches)
|
(g/cm³)
|
(10-5Ω-in) |
(µ-W-m) |
(psi)
|
(MPa) |
|
18-28
|
1.68
- 1.74 |
17
- 21 |
4.3
- 5.3 |
1150
- 1750
|
8.0
- 12.0
|
| Connecting Pins |
| Diameter
|
Apparent
Density
|
Specific
Resistance
|
Flexural
Strength Longitudinal |
|
(inches)
|
(g/cm³)
|
(10-5Ω-in) |
(µ-W-m) |
(psi)
|
(MPa) |
|
9.5
- 14.75
|
1.78
- 1.82 |
13.3
- 16.8 |
3.4
- 4.3 |
3000
- 3800
|
20.0
- 26.0
|
| Current Capacity Range |
 |
| Stringerized Shipments (Truck) |
| Electrode
Size (inches) |
Approx.
Weight per Piece |
Pieces
per Bundle
|
Approx.
Net Lbs per Bundle |
Pieces
per TL
|
Approx
Net (lbs) |
|
28
x 110
|
4,264
|
2
|
8,528
|
10
|
42,640
|
|
26
x 110
|
3,459
|
2
|
6,918
|
12
|
41,508
|
|
26
x 96
|
3,170
|
2
|
6,340
|
14
|
44,380
|
|
24
x 100
|
3,116
|
2
|
6,232
|
14
|
43,624
|
|
24
x 96
|
2,721
|
2
|
5,442
|
16
|
43,536
|
|
24
x 84
|
2,407
|
2
|
4,814
|
18
|
43,326
|
|
24
x 60
|
1,715
|
2
|
3,430
|
24
|
41,160
|
|
22
x 110
|
2,580
|
2
|
5,160
|
16
|
41,280
|
|
22
x 96
|
2,288
|
2
|
4,576
|
20
|
45,760
|
|
22
x 84
|
2,088
|
2
|
4,176
|
22
|
45,936
|
|
20
x 96
|
1,951
|
2
|
3,902
|
24
|
46,824
|
|
20
x 84
|
1,690
|
2
|
3,380
|
26
|
43,940
|
|
20
x 72
|
1,436
|
3
|
4,308
|
33
|
47,388
|
|
18
x 96
|
1,559
|
3
|
4,677
|
30
|
46,770
|
|
18
x 84
|
1,358
|
3
|
4,074
|
34
|
46,172
|
|
18
x 72
|
1,171
|
3
|
3,513
|
40
|
46,840
|
| Factors for Conversion to International System (SI) Units |
| Property
|
To
Convert From
|
To
|
Multiply
By # |
|
CTE
|
per
°F
|
per
°C |
27.76
|
| Density |
lb/ft³ |
g/cm³ |
0.01603 |
| Electrode
Consumption |
lbs/ton |
Kg/MT |
0.5 |
| Energy |
Btu's |
kWh |
0.0002928 |
| Force |
lbf |
Newtons(N) |
4.448 |
| Length |
Inches |
mm |
25.4 |
| Strength |
psi |
MPa |
0.006895 |
| Resistivity |
Ohm-in |
µ-ohm-m |
25400 |
| Torque |
ft-lbs |
N-m |
1.3558 |
| Velocity |
ft/min |
mm/sec |
5.079 |
| Weight |
Short
ton |
Metric
Ton |
0.9074 |
|
