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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. Not allowed for 550-600mm electrode.
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 | ||||
700 | 26 | 714 | 708 | 2400-2700-3000 | +/-100 | -100 | -275 |
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/T4090-2015 | Measured value | |||||
Resistivity ≦ | Electrode | µΩm | 6.2 | 6.0 | 5.5 | 5.5 |
Nipple | 5.3 | 5.3 | 3.7 | 3.7 | ||
Rupture strength ≦ | Electrode | MPa | 10.5 | 10.5 | 12.0 | 12.0 |
Nipple | 20.0 | 20.0 | 22.0 | 24.0 | ||
Modulus of Elasticity ≦ | Electrode | GPa | 14.0 | 14.0 | 12.0 | 12.0 |
Nipple | 20.0 | 20.0 | 18.0 | 18.0 | ||
Bulk dentisity ≦ | Electrode | g/cm³ | 1.7 | 1.7 | 1.67-1.75 | 1.67-1.75 |
Nipple | 1.74 | 1.75 | 1.80 | 1.81 | ||
Coefficient of thermal expansion ≦ | Electrode | 10-6 /℃ | 1.5 | 1.5 | 1.4 | 1.4 |
Nipple | 1.4 | 1.4 | 1.2 | 1.2 | ||
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 | 20000-30000 | 20-30 |
400 | 16.0 | 25000-40000 | 19-30 |
450 | 18.0 | 32000-45000 | 19-27 |
500 | 20.0 | 38000-55000 | 18-27 |
550 | 22.0 | 45000-65000 | 18-27 |
600 | 24.0 | 50000-75000 | 18-26 |
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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