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400mm - 800mm High Performance HP Graphite Electrodes For Advanced Metallurgical Processes

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400mm - 800mm High Performance HP Graphite Electrodes For Advanced Metallurgical Processes

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Brand Name :HUATAO
Model Number :HTGE02
Certification :CE, ISO
Place of Origin :CHINA
MOQ :20Tons
Price :1450-3000 USD/ ton
Payment Terms :T/T, Western Union, MoneyGram, L/C
Supply Ability :200Tons per month
Packaging Details :Wooden Pallet
Delivery Time :15-30days
Raw Materials :Premium needle coke and high-grade coal tar pitch
Current Density :Up to 25A/cm² for high-power applications
Ash Content :≤0.25%, ensuring purity in smelting
Thermal Expansion Coefficient :Low, minimizing thermal stress fractures
Mechanical Strength :High resistance to breakage during handling and use
Electrical Resistivity :Low for efficient current transmission
Diameter Range :400mm - 800mm, customizable lengths available
Oxidation Resistance :Coated with specialized anti-oxidation layer
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High-Performance HP Graphite Electrodes for Advanced Metallurgical Processes
Description For High-Performance HP Graphite Electrodes For Advanced Metallurgical Processes:
Engineered for superior conductivity and extended lifespan, our HP Graphite Electrodes optimize metallurgical operations, reducing consumption and enhancing efficiency in high-power electric furnaces.
HP Graphite Electrodes, or High-Power Graphite Electrodes, are essential components for modern high-power electric arc furnaces in steelmaking, ferrous alloy production, and other demanding metallurgical processes. These electrodes are manufactured using carefully selected needle coke and high-grade coal tar pitch, ensuring superior physical and electrical properties.​
The advanced raw materials and meticulous manufacturing process endow HP Graphite Electrodes with exceptional performance. Their ability to withstand current densities up to 25A/cm² makes them ideal for high-power applications, enabling faster melting rates and shorter furnace cycles. The ultra-low ash content of ≤0.25% significantly reduces the introduction of impurities during smelting, contributing to higher-quality end products.​
One of the key features is the low thermal expansion coefficient, which effectively mitigates thermal stress and reduces the risk of fractures caused by rapid temperature changes within the furnace. This, combined with high mechanical strength, ensures the electrodes maintain integrity throughout their service life, even under rigorous operating conditions.​
To further enhance durability, our HP Graphite Electrodes are coated with a specialized anti-oxidation layer. This coating significantly extends the electrode lifespan by reducing oxidation losses at high temperatures, thereby minimizing consumption and operational costs. The electrodes' low electrical resistivity facilitates efficient current transmission, optimizing energy utilization and improving overall process efficiency.​
During production, each electrode undergoes stringent quality control measures, from raw material inspection to final machining. Precision manufacturing techniques ensure consistent dimensions and tight tolerances, enabling seamless assembly and reliable performance in the furnace.​
In terms of applications, HP Graphite Electrodes are widely used in high-power electric arc furnaces for steel scrap melting, production of stainless steel, and various ferrous alloys. Their high-performance characteristics make them indispensable for achieving high productivity and cost-effective operations in modern metallurgy.

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Specification For High-Performance HP Graphite Electrodes For Advanced Metallurgical Processes:

Physico-chemical Specifications of HP Graphite Electrode
Items Unit Diameter ( mm )
200-300mm

Typical

Value

350-400 mm

Typical

Value

450-500 mm Typical
Value
550-700 mm Typical
Value
8-16 Inch 14-16 Inch 18-20 Inch 22-28 Inch


Specific
Resistance≤


Electrode
μΩ.m 6.6 6.0 6.5 6.0 6.3 6.0 6.0 6.0
Nipple 5.5 4.8 5.2 4.8 5.0 4.8 4.8 4.8
Bending
Strength ≥
Electrode MPa 10.0 10.5 10.5 10.5
Nipple 16.0 18.0 18.0 18.0
Young's
Modulus ≤
Electrode GPa 12.0 14.0 14.0 14.0
Nipple 16.0 18.0 18.0 18.0
Bulk Density Electrode g/cm³ 1.68 1.72 1.70 1.72 1.72 1.72 1.72 1.72
Nipple 1.72 1.80 1.75 1.80 1.76 1.80 1.80 1.80
(100℃-600℃)
CTE ≤
Electrode X10
-6/℃
2.4 2.2 2.2 2.2
Nipple 2.2 1.63 1.6 1.6
Ash Content ≤ % 0.3 0.3 0.3 0.3
Note: Ash content is only for reference.

PHYSICAL&CHEMICAL PROPERTLES OF ELECTRODE AND NIPPLE
Item Unit Nominal Diameter(mm)
RP HP UHP
300~450 500~800 350 ~500 550 ~700 350~500 550~750
Guaranteed Typical Guaranteed Typical
Specific Resistance
LSR≤
(E)
Electrode
μ2*m 9 - 10.5 9 - 10.5 7.5 7.5 6.3 5.0 - 6.0 5.8 4.8 - 5.5
(N)
Nipple
8 8 6.3 6.3 5.3 3.8 - 4.5 4.3 3.5 - 4.1
Bending Strength
(E)
Electrode
Mpa 7 6.5 10 8.5 10.5 11.0 - 13.0 10 10.0 - 13.0
(N)
Nipple
15 15 17 17 20 20.0 - 25.0 23 24.0 - 30.0
Young's
Modulus ≤
(E)
Electrode
Gpa 9.3 9.3 14 14 14 8.0 - 12.0 14 7.0 - 10.0
(N)
Nipple
14 14 16 16 20 12.0 - 16.0 22 16.0 - 21.0
Bulk Density (E)
Electrode
g/cm³ 1.53 1.52 1.6 1.6 1.66 1.68 - 1.73 1.68 1.69 - 1.73
(N)
Nipple
1.7 1.7 1.72 1.72 1.75 1.76 - 1.82 1.78 1.79 - 1.84
(100℃-600℃)
CTE ≤
(E)
Electrode
10-6/℃ 2.9 2.9 2.4 2.4 1.5 1.3 - 1.5 1.5 1.3 - 1.5
(N)
Nipple
2.8 2.8 2.2 2.2 1.4 1.0 - 1.3 1.3 1.0 - 1.3
Ash Content ≤ % 0.5 0.5 0.5 0.5 0.5 0.2 - 0.4 0.5 0.2 - 0.4

Raphite Electrode Size&Tolerance

Name

Eactroda Diarmetar

Eecros Length

Damter x Length

Maximum

Minimum

Maximum
inch mm mm mm mm mm
14×60 350×1500 357 352 1550 1400
14×72 350×1800 1875 1700
14×96 350×2400 2475 2275
16×60 400×1500 409 403 1550 1400
16×72 400×1800 1875 1700
16×96 400×2400 2475 2275
18×72 450×1800 460 454 1875 1700
18×96 450×2400 2475 2275
18×110 450×2700 2850 2550
20×72 500×1800 511 505 1875 1700
20×84 500×2100 2175 1975
20×96 500×2400 2475 2275
20×110 500×2700 2850 2550
22×84 550×2100 562 556 2175 1975
22×96 550×2400 2475 2275
24×84 600×2100 613 607 2175 1975
24×96 600×2400 2475 2275
24×110 600×2700 2850 2550
26×110 650×2700 663 657 2850 2550
28×110 700×2700 714 708 2850 2550

Suggested Graphite Electrode Operation Current Capacity

Nominal Diameter

Operation Current (Ampere)
inch mm
RP Graphite Electrode

HP Graphite Electrode

UHP Graphite Electrode
3 φ75 1300-2000 —-
4 φ100 1800-3000 —-
5 φ130 2800-4200
6 φ150 4000-5000 —- —-
8 φ200 4800-9000 6000-9000
10 φ250 8000-12000 9000-14000 8100-12200
12 φ300 11000-16000 14500-18500 15000-22000
14 φ350 15000-22000 19000-28000 20000-30000
16 φ400 20000-28000 23000-35000 25000-40000
18 φ450 24000-34000 30000-42000 32000-45000
20 φ500 28000-42000 35000-50000 38000-55000
22 φ550 31000-45000 35000-55000 42000-66000
24 φ600 32000-46000 40000-62000 60000-90000
26 φ650 35000-48000 45000-72000 60000-90000
28 φ700 39000-49000 48000-75000 70000-120000

Note: On EAF, the current is suggested to be reduced by 10%; On LF, it might be increased by 10%.

Machining Dimension Of Electrode And Nipple
Unit(mm)
Applicable Inch Nominal Diameter Nipple D2 Socket Thread Pitch
Large Diameter Length Medium Diameter Small Diameter Depth
RP/HP/UHP
Graphite
Electrode
12 300 177.16 270.9 172.95 168.73 141.5 8.47
14 350 215.9 304.8 211.69 207.47 158.4
16 400 215.9 304.8 211.69 207.47 158.4
16 400 241.3 338.7 237.09 232.87 175.3
18 450 241.3 338.7 237.09 232.87 175.3
18 450 273.05 355.6 268.84 264.62 183.8
20 500 273.05 355.6 268.84 264.62 183.8
20 500 298.45 372.6 294.24 290.02 192.2
22 550 298.45 372.6 294.24 290.02 192.2
12 300 177.8 215.9 174.64 171.48 114 6.35
14 350 203.2 254 200.04 196.88 133
16 400 222.25 304.8 219.09 215.93 158.4
16 400 222.25 355.6 219.09 215.93 183.8
18 450 241.3 304.8 238.14 234.98 158.4
18 450 241.3 355.6 238.14 234.98 183.8
20 500 269.88 355.6 266.72 263.56 183.8
20 500 269.88 457.2 266.72 263.56 234.6
22 550 298.45 355.6 295.29 292.13 183.8
22 550 298.45 457.2 295.29 292.13 234.6
24 600 317.5 355.6 314.34 311.18 183.8
24 600 317.5 457.2 314.34 311.18 234.6
26 650 355.6 457.2 352.44 349.28 234.6
26 650 355.6 558.8 352.44 349.28 285.4
28 700 374.65 457.2 371.49 368.33 234.6
28 700 374.65 558.8 371.49 368.33 285.4
30 750 406.4 584.6 403.24 400.08 260
30 750 406.4 609.8 403.24 400.08 310.08
32 800 431.8 635 428.64 425.48 323.5

RECOMMENDED TIGHTENING TORQUE

Electrode Diameter

(mm)

Torque ((N.M)

400mm - 800mm High Performance HP Graphite Electrodes For Advanced Metallurgical Processes
300 900
350 1300
400 1550
450 1850
500 2400
550 2750
600 3800
650 4300
700 5200
750 6800
400mm - 800mm High Performance HP Graphite Electrodes For Advanced Metallurgical Processes
400mm - 800mm High Performance HP Graphite Electrodes For Advanced Metallurgical Processes400mm - 800mm High Performance HP Graphite Electrodes For Advanced Metallurgical Processes
400mm - 800mm High Performance HP Graphite Electrodes For Advanced Metallurgical Processes
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