HONOR GROUP CO., LTD
Art of Metallurgy
HONOR GROUP
Graphite Electrode uhp
    发布时间: 2016-08-01 19:25    

Ultra high power graphite electrode is widely used in the steelmaking industry of arc furnace in steel industry. With the adjustment of the steel industry, the production of high quality steel and special copper must be smelted by electric arc furnace, and graphite electrode must be used in the smelting of electric arc furnace.

Specification :

Nominal diameter Inch Actual diameter Nominal length Allowable variation
Off-size length
length Maximum Minimum
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 ±100 -100 -275
550 22 562 553
600 24 613 607
700 26 714 708 2400-2700 ±100 -100 -275

 

Technical Indicators of Ultra high power graphite electrode:

Items Classification Unit Nominal Diameter (mm)
Ultra High Power Graphite Electrodes
350-400 450-500 550-600
Resistivity Electrode μΩm 6.2 6.3 6.3
Nipple 5.0 5.0 4.5
Bending Strength Electrode Mpa 10.5 10.5 11.0
Nipple 18.0 18.0 20.0
Young’s Modulus Electrode Gpa 14.0 14.0 14.0
Nipple 18.0 18.0 22.0
Bulk Density Electrode g/cm3 1.66 1.66 1.66
Nipple 1.75 1.75 1.75
CTE (100℃-600℃) Electrode ×10-6/℃ 1.5 1.5 1.4
Nipple 1.4 1.4 1.2
Ash Content
% 0.3 0.3 0.5

 

Recommended current load of UHP Graphite Electrodes: 

Grade Nominal Dia. Allowable current  A Current density  A/cm2
UHP electrode
AC DC AC DC
300mm 15000~22000
20~30
350mm 20000~30000 20~30
400mm 25000~40000 19~30
450mm 32000~45000 19~27
500mm 38000~55000 18~27
550mm 45000~65000 49000~78000 18~27 20~32
600mm 50000~75000 58000~93000 18~26 20~32
650mm 60000~85000 60000~110000 18~25 20~30
700mm 70000~120000 79000~130000 18~30 20~30


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