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UHP Graphite Electrode

HUATAO Company supply the Ultra High Power (UHP) Graphite Electrode,In ultra-high-power arc furnaces, ultra-low resistivity (≤5.5μΩ·m) enables rapid conduction of 100,000+ amp currents, precisely controlling arc temperatures (2000-2500℃) for demanding smelting and new energy applications.

Category:

Graphite Electrode

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Product Details

Ultra High Power (UHP) Graphite Electrode

Working Principle

Crafted from high-purity needle coke and special pitch via isostatic pressing, ultra-high-temperature graphitization (2800-3000℃), and nano-coating, forming highly oriented graphite crystals. In ultra-high-power arc furnaces, ultra-low resistivity (≤5.5μΩ·m) enables rapid conduction of 100,000+ amp currents, precisely controlling arc temperatures (2000-2500℃) for demanding smelting and new energy applications.

Product Features & Applications

Features: 12% conductivity of copper reduces melting time by 20%-25% per ton of steel; dual anti-oxidation coatings (SiC CVD + pitch impregnation) cut high-temperature loss by 30%; high-density structure (≥1.70g/cm³) resists creep in 80-300-ton furnaces.
Applications: Used in ultra-high-power arc furnaces for stainless steel, electrical steel, nickel-based alloys, and new energy fields like lithium battery anode graphitization/photovoltaic silicon purification. Supports large-scale, intelligent furnace operations as a core consumable for high-end industries.

Performance & Advantages

Ultra-High Power Flagship for Advanced Smelting

Efficiency Pinnacle: Resistivity ≤5.5μΩ·m (12% of copper’s conductivity) and 800mm large diameter cut smelting time by 25% and boost daily output by 30%—produce each ton of steel faster than competitors.
Durability Beyond Limits: Dual-coating technology (SiC CVD + pitch impregnation) limits oxidation to ≤0.15mm/h, extending life by 25% over HP electrodes and cutting annual material loss costs by 40%—set a new durability benchmark.
Premium Application Expert: Ultra-high purity (ash ≤0.2%) perfectly suits stainless steel, electrical steel, and lithium battery anode graphitization. Certified by global top 10 steelmakers, it helps you break into high-end markets with confidence.

Specifications & Data Sheet

Physico-chemical Specifications of UHP Graphite Electrode
Items		Unit	Diameter (mm)
			250-400 mm	Typical Value	450-500 mm	Typical Value	550-600 mm	Typical Value	650-700 mm	Typical Value
			10-16 Inch	Typical Value	18-20 Inch	Typical Value	22-24 Inch	Typical Value	26-28 Inch	Typical Value
Specific Resistance≤	Electrode	μΩ.m	5.5	5.0	5.1	5.0	5.5	5.0	4.8	4.8
Specific Resistance≤	Nipple	μΩ.m	4.0	3.5	3.8	3.5	3.5	3.5	3.2	3.2
Bending Strength ≥	Electrode	MPa	11.0		11.0		11.0		11.0
Bending Strength ≥	Nipple	MPa	18.0		18.0		20.0		20.0
Young's Modulus ≤	Electrode	GPa	14.0		14.0		14.0		14.0
Young's Modulus ≤	Nipple	GPa	18.0		18.0		22.0		22.0
Bulk Density	Electrode	g/cm³	1.69	1.75	1.70	1.75	1.72	1.75	1.75	1.75
Bulk Density	Nipple	g/cm³	1.78	1.85	1.82	1.85	1.82	1.85	1.85	1.85
(100℃-600℃) CTE ≤	Electrode	X10 -6/℃	1.5		1.5		1.4		1.4
(100℃-600℃) CTE ≤	Nipple	X10 -6/℃	1.4		1.4		1.2		1.2
Ash Content ≤		%	0.3		0.3		0.3		0.3
Note: Ash content is only for reference.

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	562	556	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
Applicable	Inch	Nominal Diameter	Large Diameter	Length	Medium Diameter	Small Diameter	Depth	Thread Pitch
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