Good Wholesale Vendors Graphite Electrodes For Steel Mills - UHP Grades Graphite Electrodes – Sungraf

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The electrodes carry the electricity that heats electric arc furnaces, the vast majority steel furnaces. They are made from petroleum coke after it is mixed with petroleum pitch, extruded and shaped, then baked to sinter it, and then graphitized by heating it above the temperature (3000 °C) that converts carbon to graphite. They can vary in size up to 11 ft. long and 30 in. in diameter.

UHP Grades Graphite Electrodes (1)

Usage

01
An increasing proportion of global steel is made using electric arc furnaces
02
The electric arc furnace itself is getting more efficient and making more steel per tonne of electrode

Typical properties of UHP graphite electrodes

Applicable Furmace Dia Property		AC Furnace			DC Furnace
Applicable Furmace Dia Property		300-400mm 12″～16″	450-500mm 18″～20″	550-600mm 22″～24″	650-700mm 24″～28″
Bulk Density	g/cm³	1.65～1.76	1.64～1.75	1.64～1.75	1.64～1.75
Specific Resistance	μΩM	4.2～6.0	4.2～6.0	4.2～6.0	4.2～5.5
Elastic Modulus	Gpa	7～14	7～14	7～14	7～14
Elastic Modulus	kgf/mm²	700～1,400	700～1,400	700～1,400	700～1,400
Flexural Strength	MPa	10.5～15	10～15	10～15	10～15
	kgf/cm²	105～150	100〜150	100-150	100～150
	N/cm²	1,050～1,500	1,000～1,500	1,000～1,500	1,000～1,500
Coefficient Of Thermal Expansion (R.T.≤600℃)	X10~-6/℃	1.0～1.5	1.0～1.5	1.0～1.5	1.0～1.4
Real Density	g/cm³	2.20～2.23	2.20～2.23	2.20～2.23	2.20～2.23
Porosity	%	20～26	20～27	20～27	20～27
Ash Content	%	≤0.2	≤0.2	≤0.2	≤0.2

Typical properties of nipples

Specifications	≤φ400	φ450-500	φ550	φ600-700
Specific Resistance (μΩM )	≤4.0	≤3.8	≤3.6	≤3.6
Flexural Strength (MPa)	18-24	17-25	20-28	20-28
astic Modulus (GPa)	≤18	≤18	≤18	≤18
Bulk Density (g/cm³)	1.76-1.84	1.78-1.84	1.79-1.86	1.79-1.86
Coefficient Of Thermal Expansion (106/℃)	0.9-1.3	0.9-1.2	0.9-1.1	0.9-1.1
Ash Content (%)	≤0.3	≤0.3	≤0.3	≤0.3

Current carrying capacity for UHP graphite electrodes

Current Capacity Of UHP Graphite Electrodes
Specifications		Current Capacity(A)		Current Density(A/cm²)
(inch)	(mm)	AC	DC	AC	DC
12	300	18,000-32,000	-	24-43	-
14	350	22,000-39,000	-	22-39	-
16	400	28,000-47,000	-	21-36	-
18	450	34,000-55,000	-	21-33	-
20	500	41,000-63,000	-	20-31	-
22	550	48,000-70,000	65,000-78,000	19-28	26-32
24	600	55,000-80,000	75,000-90,000	19-27	26-31
W	650	69,000-89,000	87,000-104,000	20-26	25-30
28	700	80,000-100,000	100,000-120,000	20-25	25-30

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All we do is always involved with our tenet Consumer initial, Trust first, devoting within the food stuff packaging and environmental defense for Good Wholesale Vendors Graphite Electrodes For Steel Mills - UHP Grades Graphite Electrodes – Sungraf , The product will supply to all over the world, such as: Barcelona, Los Angeles, Botswana, Our products are produced with high quality raw material. Every moment, we constantly improve the production programme. In order to ensure better quality and service, we have been focusing on the production process. We have got high praise by partner. We are looking forward to establishing business relationship with you.

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With a positive attitude of regard the market, regard the custom, regard the science, the company works actively to do research and development. Hope we have a future business relationships and achieving mutual success.