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17 Kunshan Road, Shibei Area, Qingdao, Shandong, China (Mainland)
Graphite electrodes
The electrodes carry the electricity that heats electric arc furnaces, the vast majority steel furnaces. They are made from petroleum coke after it is mixed with petroleum pitch, extruded and shaped, then baked to sinter it, and then graphitized by heating it above the temperature (3000 °C) that converts carbon to graphite. They can vary in size up to 11 ft. long and 30 in. in diameter.
l RP (Regular Power Grade Graphite Electrodes | |||||||
ITEM | UNIT | (M M)NOMINAL DIAMETER | |||||
75-130 | 150-230 | 250-350 | 400-500 | 75-130 | |||
BULK DENSITY | ELECTRODE | G/CM3 | ≥1.58 | ≥1.58 | ≥1.58 | ≥1.58 | ≥1.58 |
NIPPLE | ≥1.65 | ≥1.65 | ≥1.65 | ≥1.65 | ≥1.65 | ||
RESISTIVITY | ELECTRODE | μΩM | ≤ 8.5 | ≤ 8.5 | ≤ 8.5 | ≤ 8.5 | ≤ 8.5 |
NIPPLE | ≤ 5.0 | ≤ 5.0 | ≤ 5.0 | ≤ 5.0 | ≤ 5.0 | ||
BENDING STRENGTH | ELECTRODE | MPA | ≥12.0 | ≥12.0 | ≥12.0 | ≥12.0 | ≥12.0 |
NIPPLE | ≥16.0 | ≥16.0 | ≥16.0 | ≥16.0 | ≥16.0 | ||
ELASTIC MODULUS | ELECTRODE | GPA | ≤8.0 | ≤8.0 | ≤8.0 | ≤8.0 | ≤8.0 |
NIPPLE | ≤12.0 | ≤12.0 | ≤12.0 | ≤12.0 | ≤12.0 | ||
C.T.E. (100-600/℃) | ELECTRODE | 10-6/℃ | ≤ 2.9 | ≤ 2.9 | ≤ 2.9 | ≤ 2.9 | ≤ 2.9 |
NIPPLE | ≤ 2.9 | ≤ 2.9 | ≤ 2.9 | ≤ 2.9 | ≤ 2.9 | ||
ASH |
| % | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
Diameter (mm) | Standard Nipple size | Diameter Tolerance | Nominal Length | |||||
4 T.P.I Nipple | 3 T.P.I Nipple | Max (mm) | Min (mm) | Low Spot (mm) | Supplied (mm) | |||
Dia (mm) | Length (mm) | Dia (mm) | Length (mm) | |||||
75 | 46.04 | 76.20 |
|
| 78 | 73 | 72 | 1000,1200 |
100 | 69.85 | 101.60 |
|
| 103 | 98 | 97 | 1000,1200,1500 |
130 | 79.38 | 127.00 |
|
| 132 | 127 | 126 | 1000,1200,1500 |
150 | 92.08 | 139.70 |
|
| 154 | 149 | 146 | 1200,1500,1800 |
175 | 107.95 | 165.10 |
|
| 179 | 174 | 171 | 1200,1500,1800 |
200 | 122.24 | 177.80 |
|
| 205 | 200 | 197 | 1200,1500,1800 |
225 | 139.70 | 177.80 |
|
| 230 | 225 | 222 | 1500,1800 |
250 | 152.40 | 190.50 | 155.58 | 220.10 | 256 | 251 | 248 | 1500,1800 |
300 | 177.80 | 215.90 | 177.17 | 270.90 | 307 | 302 | 299 | 1500,1800,2100 |
350 | 203.20 | 254.00 | 215.90 | 304.80 | 357 | 352 | 349 | 1500,1800,2100 |
400 | 222.25 | 304.80 | 215.90 | 304.80 | 409 | 403 | 400 | 1500,1800,2100,2400,2700 |
400 | 222.25 | 355.60 | 241.30 | 338.70 | 409 | 403 | 400 | 1500,1800,2100,2400,2700 |
450 | 241.30 | 304.80 | 24I.30 | 304.80 | 460 | 454 | 451 | 1800, 2100, 2400, 2700 |
450 | 241.30 | 355.60 | 273.05 | 355.60 | 460 | 454 | 451 | 1800, 2100, 2400, 2700 |
500 | 269.88 | 355.60 | 273.05 | 355.60 | 511 | 505 | 502 | 1800, 2100, 2400, 2700 |
500 | 269.88 | 457.20 | 298.45 | 372.60 | 511 | 505 | 502 | 1800, 2100, 2400, 2700 |
550 | 298.45 | 355.60 | 298.45 | 372.50 | 562 | 556 | 553 | 1800, 2100, 2400, 2700 |
550 | 298.45 | 457.20 |
|
| 562 | 556 | 553 | 1800, 2100, 2400, 2700 |
600 | 317.5 | 355.60 |
|
| 613 | 607 | 604 | 1800, 2100, 2400, 2700 |
600 | 317.5 | 457.20 |
|
| 613 | 607 | 604 | 1800, 2100, 2400, 2700 |
650 | 355.60 | 457.20 |
|
| 657 | 663 | 655 | 2400, 2700 |
650 | 355.60 | 558.80 |
|
| 657 | 663 | 655 | 2400, 2700 |
700 | 374.65 | 457.20 |
|
| 714 | 708 | 705 | 2400, 2700 |
700 | 374.65 | 558.80 |
|
| 714 | 708 | 705 | 2400, 2700 |
An increasing proportion of global steel is made using electric arc furnaces, and the electric arc furnace itself is getting more efficient and making more steel per tonne of electrode.
wooden pallet or meet customers' requirements
Sungraf Materials Co., Ltd is located in Qingdao China Where has rich graphite mineral resources and focuses to become a professional and reliable supplier of Graphite and Carbon related products. In the system ,we strictly enforce the ISO9001-2000 Quality Management System.
We remain a major supplier of Flake graphite, Expandable graphite ,Amorphous graphite, Synthetic graphite, related graphite carbon products and a variety of other raw materials. All kinds of products are extensively applied in those industrial fields as petroleum, chemical industry, electric power, metallurgy, machinery, automobile, shipping building, pharmacy, aerospace industry, nuclear industry, etc.
SHANDONG SUNGRAF CARBONS CO.,LTD
No.20 Lianyungang Road, Qingdao 266034 Shandong, China
Fax:+86
Skype:
Kiki Liu
