Graphite Electrode (SHP)

Semi-ultra-high power graphite electrode is a product between the high power graphite electrode and ultra-high power graphite electrode and it is just a folk name. There is no such a type of semi-ultra-high power in actual product categories. The semi-ultra-high power graphite electrode reduces the proportion of needle coke in the raw material ratio during smelting, thereby reducing the cost. It well applies to use in ultra-high power electric arc furnaces and refining furnaces.

%e7%9f%b3%e5%a2%a8%e7%94%b5%e6%9e%812

Semi-ultra-high Power Graphite Electrodes Detailed Parameters

Semi-ultra-high Power Graphite Electrodes Detailed Parameters
Items		Unit	Nominal diameter
					DHTS-SHP
				300/400	450/500	550/600
Resistivity	Electrode body	μΩm	5.8-6.4	4.5-6.0	4.5-6.2
Resistivity	Nipple	μΩm	3.8-4.5	3.5-4.5	3.5-4.5
Flexural strength	Electrode body	MPa	13.0-15.0	12.0-15.0	12.0-15.0
Flexural strength	Nipple	MPa	18-25	20-27	20-27
Elasticity modulus	Electrode body	GPa	10.0-12.0	10.0-12.0	10.0-12.0
Elasticity modulus	Nipple	GPa	14.0-18.0	14.0-18.0	14.0-18.0
Bulk density	Electrode body	g/cm3	1.68-1.74	1.68-1.74	1.68-1.72
Bulk density	Nipple	g/cm3	1.76-1.82	1.78-1.83	1.78-1.84
Ash content	Electrode body	GPa	≤0.1	≤0.1	≤0.1
Ash content	Nipple	GPa	≤0.1	≤0.1	≤0.1
Heat expansion coefficient	Electrode body	×10-6/℃	1.2-1.8	1.2-1.8	1.2-1.8
Heat expansion coefficient	Nipple	×10-6/℃	1.0-1.4	1.0-1.4	1.0-1.4
True density	Electrode body	g/cm3	2.22-2.44	2.22-2.23	2.22-2.23

Specifications of the Semi-ultra-high power Graphite Electrode and allowable deviation

Specifications of the Semi-ultra-high Power Graphite Electrode and allowable deviation
Dimeter(mm)				Length(mm)
Nominal diameter		Actual diameter		Nominal length	Allowable deviation
（mm）	（in）	（max）	（min)	mm	Short ruler length
300	12	307	302	1600 1800	mm	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

Allow the current capacity of Semi-ultra-high Power Graphite Electrode

Allow the current capacity of Semi-ultra-high Power Graphite Electrode
Nominal diameter		Allowable current capacity （EAF）	Current density (A/cm²)	Allowable current capacity （LC furnace）	Current density (A/cm²)
（mm）	（in）	Allowable current capacity （EAF）	Current density (A/cm²)	Allowable current capacity （LC furnace）	Current density (A/cm²)
350	14	18000-26000	19-26	21000-31000	22-31
400	16	23000-35000	19-22	26000-38000	21-31
450	18	34000-42000	22-28	36000-48000	23-30
500	20	41000-51000	21-27	46000-54000	23-27
550	22	51000-62000	21-26	——	——
600	24	60000-70000	21-25	——	——