RP 350 Ordinary power graphite electrode

Short Description:

The main manufacturing raw material of RP 350mm common power graphite electrode is petroleum coke, which can allow 13500-18000A current through, allowing the bearing capacity of less than 14 ~ 18A/cm² current density, which is generally used in steel making, silicon making, yellow phosphorus and other conventional power arc furnace.

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The products of Hexi have passed ISO9001 quality management system certification and obtained the export qualification of graphite electrode authorized by Chinese government. With good quality and excellent after-sales service, our products are in great demand in the world market.

Comparison Technical Specification for RP Graphite Electrode 14″
Item Unit Supplier Spec
Typical Characteristics of Pole
Nominal Diameter mm 350
Max Diameter mm 358
Min Diameter mm 352
Nominal Length mm 1600/1800
Max Length mm 1700/1900
Min Length mm 1500/1700
Bulk Density g/cm3 1.55-1.63
transverse strength MPa ≥8.5
Young’ Modulus GPa ≤9.3
Specific Resistance µΩm 7.5-8.5
Maximum current density KA/cm2 14-18
Current Carrying Capacity A 13500-18000
(C.T.E) 10-6℃ ≤2.4
ash content % ≤0.3
Typical Characteristics of Nipple (4TPI/3TPI) 
Bulk Density g/cm3 ≥1.74
transverse strength MPa ≥16.0
Young’ Modulus GPa ≤13.0 
Specific Resistance µΩm 5.8-6.5
(C.T.E) 10-6℃ ≤2.0
ash content % ≤0.3


Graphitization refers to the high temperature heat treatment process of transforming amorphous carbon into three-dimensional ordered planar hexagonal mesh laminated graphite by heating carbon products to 2300℃ or above in a high temperature electric furnace. The graphitization of carbon materials is carried out at a high temperature of 2300 ~ 3000℃. Because the combustion of fossil fuels is difficult to obtain such a high temperature, it can only be achieved by electric heating roasting in industry.

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