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Electrode surface quality1-Electrode surface defect or cavity less than 2 places, the size less than the value in below2-No cross crack in the surface, rod crack width 0.3-1.0mm, the length should less the 1/5 electrode circumference, disregard the rod crack width less 0.3mm3-Black skin area
Service commitment: Committed to building a high-quality and low-cost refractory overall solution for customers
TEL：+8615083256525
Electrode surface quality
1-Electrode surface defect or cavity less than 2 places, the size less than the value in below
2-No cross crack in the surface, rod crack width 0.3-1.0mm, the length should less the 1/5 electrode circumference, disregard the rod crack width less 0.3mm
3-Black skin area in electrode surface, width less than 1/10 electrode circumference, length less than 1/3 electrode length.
Nominal Diameter | Actual diameter | Nominal Length | Permissible tolerance | ||||
Stub length | |||||||
mm | inch | max | min | mm | length | max | min |
350 | 14 | 357 | 352 | 1800-2000-2100 | +/-100 | -100 | -275 |
400 | 16 | 409 | 403 | ||||
450 | 18 | 460 | 454 | ||||
500 | 20 | 511 | 505 | 2000-2100- 2250-2400- 2700-3000 | +/-100 | -100 | -275 |
550 | 22 | 562 | 556 | ||||
600 | 24 | 613 | 607 | ||||
specification defect size | nominal diameter | |
350-400 | 450-600 | |
diameter | 20-40 | 30-50 |
deepth | 5-10 | 30-51 |
Technical index
Item | Unit | |||||
350-400 | 450-500 | 350-450 | 500-600 | |||
YB/T4089-2000 | Measured value | |||||
Resistivity ≦ | Electrode | µΩm | 7.0 | 7.5 | 6.0 | 6.2 |
Nipple | 6.5 | 6.5 | 4.5 | 4.5 | ||
Rupture strength ≦ | Electrode | MPa | 10.5 | 9.8 | 12.0 | 12.0 |
Nipple | 14.0 | 14.0 | 20.0 | 20.0 | ||
Modulus of Elasticity ≦ | Electrode | GPa | 12.0 | 12.0 | 10.0 | 10.5 |
Nipple | 16.0 | 16.0 | 16.0 | 16.0 | ||
Bulk dentisity ≦ | Electrode | g/cm³ | 1.6 | 1.6 | 1.63-1.73 | 1.63-1.73 |
Nipple | 1.7 | 1.7 | ≧1.78 | ≧1.78 | ||
Coefficient of thermal expansion ≦ | Electrode | 10-6 /℃ | 2.4 | 2.4 | 2.4 | 2.4 |
Nipple | 2.2 | 2.2 | 1.8 | 1.8 | ||
Ash ≦ | % | 0.5 | 0.5 | 0.3 | 0.3 | |
Allowable current capacity
Nominal diameter | Allowable current capacity(A) | Electric current density | |
mm | Inch | ||
350 | 14 | 1700-24000 | 17-24 |
400 | 16.0 | 21000-31000 | 16-24 |
450 | 18.0 | 25000-40000 | 15-24 |
500 | 20.0 | 30000-48000 | 15-24 |
ADDRESS：No. 443, 2nd Floor, Building 6, Jincheng Times Square, Jinshui District, Zhengzhou City, Henan Province, China
TEL：+8615083256525
MOBILE：+8615083256525
E-MAIL：sales@megaxc.com
WeChat official account：megaxc
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