Graphite Electrodes, UHP Type, Official Representative of Fangda Co. and Nangtong Co.


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Graphite Electrodes, UHP Type, Official Representative of Fangda Co. and Nangtong Co.

Chemical Composition (on dry basis)

Item Unit Norminal Diameter
UHP HP RP
≤ ɸ 400 ≥ ɸ 450 ≤ ɸ 400 ≥ ɸ 450 ≤ ɸ 300 ≥ ɸ 350
Resistance E µ Ω m ≤ 5.5 ≤ 6.5 ≤ 8.5
N ≤ 4.5 ≤ 5.5 ≤ 6.5
Bending E MPa ≥ 11.0 ≥ 10.5 ≥ 9.8 ≥ 8.5 ≥ 7.0
Strength N ≥ 20.0 ≥ 16.0 ≥ 15.0
Elastic E Gpa ≤ 14.0 ≤ 12.0 ≤ 9.3
Modulus N ≤ 18.0 ≤ 16.0 ≤ 14.0
Bulk Density E g/cm3 ≥ 1.66 ≥ 1.67 ≥ 1.62 ≥ 1.60 ≥ 1.53 ≥ 1.52
N ≥ 1.75 ≥ 1.73 ≥ 1.69
CTE. E 10-6/°c ≤ 1.5 ≤ 2.4 ≤ 2.9
(100-600 °C) N ≤ 1.4 ≤ 2.2 ≤ 2.8
Ash % ≤ 0.3 ≤ 0.3 ≤ 0.5
Graphite Electrodes Diameter Tolerance(UNIT:mm)
Norminal Diameter Actual Diameter (D) Norminal Length
Inches mm Max Min Rough Spot (B)
8˝ 200 205 201 197 1600/1800
9˝ 225 230 225 222 1600/1800
10˝ 250 256 251 249 1600/1800
12˝ 300 307 302 299 1600/1800/1900/2000
14˝ 350 357 352 349 1600/1800/1900/2000/2200
16˝ 400 409 403 400 1600/1800/1900/2000/2200/2400
18˝ 450 460 454 451 1600/1800/1900/2000/2200/2400
20˝ 500 511 505 502 1800/1900/2000/2200/2400
22˝ 550 562 556 553 1800/2000/2200/2400
24˝ 600 613 607 604 2000/2200/2400/2700
26˝ 650 663 657 654 2400/2700/3000
28˝ 700 714 708 705 2400/2700/3000
Graphite Electrodes Length Tolerance(UNIT:mm)
Norminal Diameter Tolerance Shorter Length Tolerance
Max Min Max Min
1600 +100 -100 -100 -275
1800 +100 -100 -100 -275
1900 +100 -100 -100 -275
2000 +100 -100 -100 -275
2200 +100 -100 -100 -275
2400 +100 -100 -100 -275
2700 +150 -150 -150 -300
3000 +150 -150 -150 -300
Dimension of Tapered Nipples(UNIT:mm)
Diameter Nipple Socket Pitch
D d2 L I d1 H
Tolerance ≤ Tolerance
3TPI mm inches (-0.30 ~ 0) (-0.30 ~ 0) (-1~0) (0~0.3) (0~7)
225 9˝ 139.70 91.22 203.20 7 141.22 107.60 8.47
250 10˝ 155.57 104.20 220.00 157.09 116.00
300 12˝ 177.16 117.39 270.90 148.68 141.50
350 14˝ 215.90 150.48 304.80 217.42 158.40
400 16˝ 215.90 150.48 304.80 217.42 158.40
400 16˝ 241.30 170.23 338.70 242.82 175.30
450 18˝ 241.30 170.23 338.70 242.82 175.30
450 18˝ 273.05 199.17 355.60 274.57 183.80
500 20˝ 273.05 199.17 355.60 274.57 183.80
500 20˝ 298.45 221.73 372.60 299.97 192.20
550 22˝ 298.45 221.73 372.60 299.97 192.20
600 24˝ 336.55 245.73 457.30 338.07 234.60
3TPIL 350 14˝ 215.90 144.85 338.70 217.42 175.30
400 16˝ 241.30 167.43 355.60 242.82 183.80
450 18˝ 273.05 182.23 457.30 274.57 234.60
4TPI 200 8˝ 122.24 81.48 177.80 7 115.92 94.90 6.35
225 9˝ 139.70 98.94 177.80 133.38 94.90
250 10˝ 152.40 109.52 190.50 146.08 101.30
300 12˝ 177.80 130.69 215.90 171.48 114.00
350 14˝ 203.20 149.74 254.00 196.88 133.00
400 16˝ 222.25 160.32 304.80 215.93 158.40
450 18˝ 241.30 179.37 304.80 234.98 158.40
500 20˝ 269.88 199.49 355.60 263.56 183.80
550 22˝ 298.45 228.06 355.60 292.13 183.80
600 24˝ 317.50 247.11 355.60 311.18 183.80
650 26˝ 355.60 268.27 457.20 349.28 234.60
700 28˝ 374.65 287.32 457.20 368.33 234.60
4TPIL 300 12˝ 177.80 124.34 254.00 171.48 133.00
350 14˝ 203.20 141.27 304.80 196.88 158.40
400 16˝ 222.25 151.86 355.60 215.93 183.80
450 18˝ 241.30 170.91 355.60 234.98 183.80
500 20˝ 269.88 182.55 457.20 263.56 234.60
550 22˝ 298.45 211.12 457.20 292.13 234.60
600 24˝ 317.50 230.17 457.20 311.18 234.60
650 26˝ 355.64 251.38 558.80 349.28 285.40
700 28˝ 374.65 270.39 558.80 368.33 285.40