语言选择：
超高功率石墨电极允许使用电流密度大于 25A／平方厘米的石墨电极。超高功率石墨电极主要用于超高功率炼钢电弧炉。
石墨电极主要以石油焦、针状焦为原料，煤沥青作结合剂，经煅烧、配料、混捏、压型、焙烧、石墨化、机加工而制成，在电弧炉炼钢中以电弧形式释放电能作为导体对炉料进行加热熔化。根据石墨电极质量指标的高低，可分为普通功率、高功率和超高功率。
| 直径 | 插口 | 插座 | 沥青 | ||||||
| D | d2 | L | I | d1 | H | ||||
| 公差 | S | 公差 | |||||||
| 3TPI | mm | inches | (-0.30_0) | (-0.30_0) | (-1_0) | (0_0.3) | (0_7) | 8.47 | |
| 225 | 9" | 139.70 | 91.22 | 203.20 | 7 | 141.22 | 107.60 | ||
| 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" | 317.20 | 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 | |||
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