Our company is enterprising manufacture,supply and export of graphite products.

Zhengnai Industry co., LTD

RP|HP|SHP|UHP|Graphite Electrode Suplier

+86 19903830057zhengnaishiye@gmail.com

RP HP UHP Graphite Electrode

RP HP UHP Graphite Electrode

  • Description:Graphite electrodes are used primarily in electric arc furnace steel manufacturing. Graphite electrodes can provide high levels of electrical conductivity and capability of sustaining the extremely high levels of generated heat.
Detailed Description

Graphite electrodes are used primarily in electric arc furnace steel manufacturing. Graphite electrodes can provide high levels of electrical conductivity and capability of sustaining the extremely high levels of generated heat. Graphite electrodes are also used in the refinement of steel and similar smelting processes.

Graphite electrodes are mainly used in electric arc furnace. They are presently the only products available that have the high levels of electrical conductivity and the capability of sustaining the extremely high levels of heat generated in EAF. Graphite electrodes are also used to refine steel in ladle furnaces and in other smelting processes. Graphite electrodes are divided into 4 Types: RP Graphite electrodes, HP Graphite electrodes, SHP Graphite electrodes, UHP Graphite electrodes.
The graphite electrode is made of petroleum coke, needle coke, coal tar and other high quality low ash materials. After calcining, batching, kneading, molding, baking, pressure impregnation, graphitization, and then by professional CNC precision machining.This product has the characteristics of low resistivity, good electrical conductivity, low ash content, compact structure, good oxidation resistance and high mechanical strength. It is widely used in LF and EAF of steel making, non-ferrous metal, silicon and phosphorus industries.

Size(RP/HP/UHP Graphite Electrode)

  • 1.300-500mm
  • 2.550-600mm
  • 3.700-800mm

Parameter of UHP Graphite Electrode

Item Unit UHP HP RP
300-600mm 650-800mm 300-800mm 300-800mm
Electric resistivity Electrode μΩm 4.8-5.8 4.6-5.8 5.8-6.6 7.8-8.8
Nipple 3.8-4.5 3.8-4.5 4.2-5.0 5.0-6.5
Flexural strength Electrode Mpa 10.0-14.0 10.0-14.0 10.0-13.0 7.0-12.0
Nipple 20.0-26.0 22.0-26.0 18.0-22.0 15.0-20.0
Elastic modulus Electrode Gpa 9.0-13.0 10.0-14.0 8.0-12.0 7.1-9.3
Nipple 15.0-18.0 15.0-18.0 14.0-16.0 12.0-14.0
Bulk density Electrode ≥g/cm3 1.68-1.74 1.70-1.74 1.62-1.66 1.53-1.56
Nipple 1.77-1.82 1.78-1.84 1.74-1.80 1.70-1.74
CTE(100-600℃) Electrode x10-6/℃ 1.1-1.4 1.1-1.4 1.6-1.9 2.2-2.6
Nipple 0.9-1.2 0.9-1.2 1.1-1.4 2.0-2.5
Ash   0.3 0.3 0.3 0.5


What are RP/HP/UHP Graphite Electrode used for?

HP/UHP graphite electrode  mainly used in high power steelmaking electric arc furnace.
RP graphite electrode is mainly used in the ordinary power electric furnace for steelmaking, silicon smelting and yellow phosphorus refining etc.

Shipping & Delivery

1.Graphite electrodes are covered with rainproof tarpaulin during long-distance transportation.
2.When unloading the electrodes packed with wooden cases by hoisting machine, the steel wire rope must be used. The steel packing belt of the electrode shall not be directly hoisted and unloaded.


Sizes of Graphite electrode Packaging
Nominal Diameter Quantity per pack Electrode Packaging Electrode and nipple packaged togsther
mm int Approximate Weight Overall dimension Approximate Weight Overall dimension
(kg) (mm) (kg) (mm)
200x1800 8x72 9 908 1900x170x470 930 2100x1070x470
250x1800 10x72 7 1110 1900x1065x580 1150 2100x1065x580
300x1800 12x72 3 685 1900x970x400 710 2050x970x400
300x1800 12x72 6 1370 1900x970x700 1420 2100x970x700
350x1800 14x72 3 880 1900x1100x480 915 2100x110x480
400x1800 16x72 2 795 1900x850x500 830 2100x850x500
400x1800 16x72 3 1180 1900x1260x500 1230 2100x1260x500
400x2100 16x84 2 890 2200x850x500 920 2400x850x500
400x2100 16x84 3 1300 2200x1260x500 1345 2400x1260x500
450x1800 18x72 2 990 1900x970x550 1035 2100x970x550
450x2100 18x84 2 1100 2200x970x550 1140 2400x970x550
450x2100 18x96 2 1335 2500x970x550 1380 2660x970x550
500x1800 20x72 2 1205 1900x1070x600 1260 2270x1070x600
500x2100 20x84 2 1375 2200x1070x600 1440 2450x1070x600
500x2400 20x96 2 1625 2500x1070x600 1680 2700x1070x600
550x2100 22x84 2 1690 2200x1170x650 1775 2450x1170x650
550x2400 22x96 2 1940 2500x1170x650 2025 2750x1170x650
600x2100 24x84 2 2000 2200x1270x700 2098 2450x1270x700
600x2400 24x96 2 2300 2500x1270x700 2398 2750x1270x700
700x2400 28x96 2 3200 2780x1460x835 3290 3140x1460x835
700x2700 28x106 2 3600 3080x1460x835 3690 3440x1460x835

What is our advantage?

Focus on your needs, plan production and deliver on time
We will strictly control the quality of our products and only send you products that meet the standards
According to the customer's requirements, provide technical suggestions for electrode use and follow-up service for trial production of new customers' products.
Establish user files, actively communicate with customers and listen to your feedback
If there is any quality problem with the product, we will reply in time and provide the best after-sales service.
We are graphite electrode manufacturer and supplier in China.