2022 High quality Graphite Electrode Usage - UHP Grades Graphite Electrodes – Sungraf

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2022 High quality Graphite Electrode Usage - UHP Grades Graphite Electrodes – Sungraf Detail:

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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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Control the standard by the details, show the power by quality. Our business has strived to establish a highly efficient and stable team staff and explored an effective good quality regulate course of action for 2022 High quality Graphite Electrode Usage - UHP Grades Graphite Electrodes – Sungraf , The product will supply to all over the world, such as: Cancun, Orlando, Tanzania, We insist on the principle of Credit being primary, Customers being the king and Quality being the , we are looking forward to the mutual cooperation with all friends at home and abroad and we will create a bright future of business.

Graphite Arc Electrode