UHP Graphite Electrodes refer to graphite electrodes that allow the use of current densities greater than 25 A / cm2. UHP Graphite Electrodes are mainly used in ultra-high power electric furnace and ladle furnace. If you want to buy cheap graphite electrode with the best quality, please Email us for more details immediately.
Graphite electrode, mainly uses petroleum coke, needle coke as raw material, coal pitch as binder, is made through calcination, ingredients, kneading, molding, baking, graphitization and machining, which is released electricity in electric arc furnace in the form of arc conductor to heat and melt furnace charge. It has the characteristics of low resistivity, good conductivity, low ash, uniform and compact structure, good oxidation resistance and high mechanical strength.
UHP Graphite Electrodes Benefits
- Our product is made of high quality low ash materials, such as petroleum coke, needle coke and coal pitch.
- From calcining, burdening, kneading, forming, baking to pressure impregnation, graphitization, we pay attention to every detail to make it boutique.
- We know machining is very important, so we precision machined with professional CNC machining to make sure high quality.
- Such of the products own characteristics with low resistivity, good electrical conductivity, low ash, compact structure, good antioxidation and high mechanical strength.
UHP Graphite Electrodes Uses
- Steelmaking
- Foundries
- Smelting Furnaces
- Non-ferrous Metals
- Ceramic Products
- Glass Industry
- Waste Recycling Industry
UHP Graphite Electrodes Specifications
Specifications and Allowance
SPECIFICATIONS AND ALLOWANCE OF UHP GRAPHITE ELECTRODES | |||||||
Diameter(mm) | Length(mm) | ||||||
Nominal Diameter | Actual Diameter | Nominal Length | Allowance | ||||
mm | inch | max | min | mm | Short Dimension | ||
300 | 12 | 307 | 302 | 1600 1800 |
length | Max | Min |
350 | 14 | 357 | 352 | ±100 | -100 | -275 | |
400 | 16 | 409 | 403 | ||||
450 | 18 | 460 | 454 | ||||
500 | 20 | 511 | 505 | 1600/1800/2000/2200 1800/2000/2200 1800/2000/2200/2400 1800/2000/2200 1800/2000/2200 |
±100 | -100 | -275 |
550 | 22 | 556 | 553 | ||||
600 | 24 | 613 | 607 |
Technical Properties
TECHNICAL PROPERTIES OF UHP GRAPHITE ELECTRODES | |||||
ITEM | UNIT | MMNPDIA 300-600mm | |||
STANDARD | SOLID SURVEY | ||||
ELECTRODE | NIPPLE | ELECTRODE | NIPPLE | ||
RESISTIVITY≯ | μΩm | 6.2-6.5 | 5.5 | 5.0-6.0 | 4.5 |
BENDING STRENGH≮ | MPa | 10.5 | 16 | 14-16 | 18-20 |
ELASTIC MODULUS≯ | GPa | 14 | 18 | 12 | 14 |
Ash≯ | % | 0.3 | 0.3 | 0.3 | 0.3 |
BULK DENSITY ≮ | g/cm3 | 1.64-1.65 | 1.70-1.72 | 1.72-1.75 | 1.78 |
CTE ≯ (100-600℃) | ×10-6/℃ | 1.5 | 1.4 | 1.3 | 1.2 |
Suggested Current-Capacities
SUGGESTED CURRENT-CAPACITIES OFELECTRODES | |||
Nominal Diameter | Suggested Current-Carrying Capacities (A) | Current Density(A/cm2) | |
mm | inch | ||
250 | 10 | 9200-15100 | 21-30 |
300 | 12 | 15000-22000 | 20-30 |
350 | 14 | 20000-30000 | 20-30 |
400 | 16 | 25000-40000 | 19-30 |
450 | 18 | 32000-45000 | 19-27 |
500 | 20 | 38000-55000 | 18-27 |
550 | 22 | 48000-60000 | 18-24 |
600 | 24 | 52000-72000 | 18-24 |
700 | 27 | 62000-95000 | 18-24 |
Electrode Surface Quality
ELECTRODE SURFACE QUALITY | ||
Specification/ Defect dimension |
Nominal Diameter(mm) | |
300-400 | 450-600 | |
Diameter | 20-40 | 30-50 |
Depth | 5-10 | 10-15 |
Remarks:
1.There should be less than two defects or holes on the electrode surface, the max size of which is mentioned in the above chart.
2.There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width in between 0.3~1.0mm.
UHP Graphite Electrodes Manufacturer
All kinds of high quality graphite electrode products sales in RS Kiln Refractory Company, such as regular power/RP graphite electrode, high power/HP graphite electrode, ultra high power/UHP graphite electrode, graphite product, high purity graphite powder, high purity graphite block, graphite blocks, graphite powder, graphite crucibles and other graphite related products. Besides, we can also customize a variety of shaped graphite electrodes products according to our customer’s needs and requirements.
We rely on advanced production equipment, strong technical force, complete quality, testing methods and strict system. The graphite products produced in RS have the characteristics of high strength, good thermal shock resistance, high temperature resistance, corrosion resistance, strong oxidation resistance and low electrical resistivity. So we provide various types of graphite products for the chemical industry, petroleum industry, electronics industry, semiconductor industry, steelmaking, foundries, powder metallurgy, non-ferrous metals, glass industry,etc.
If you are in need of high quality graphite electrodes products for your business, then don’t hesitate to Contact us immediately!