Small Diameter Graphite Electrodes Rod For Electric Arc Furnace In Steel And Foundry Industry

Short Description:

Small diameter graphite electrode,with a diameter ranging from 75mm to 225mm, the small diameter of our graphite electrodes makes them highly suitable for precision smelting operations. Whether you need to produce calcium carbide, refine carborundum, or smelt rare metals, our electrodes provide the ideal solution. With their superior heat resistance and excellent conductivity, our graphite electrodes ensure efficient and effective smelting processes, enabling you to achieve optimal results in your operations.

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Technical Parameter

Chart 1:Technical Parameter For Small Diameter Graphite Electrode

Diameter		Part	Resistance	Flexural Strength	Young Modulus	Density	C.T.E	Ash
Inch	mm	Part	μΩ·m	MPa	GPa	g/cm³	×10^-6/℃	%
3	75	Electrode	7.5-8.5	≥9.0	≤9.3	1.55-1.64	≤2.4	≤0.3
3	75	Nipple	5.8-6.5	≥16.0	≤13.0	≥1.74	≤2.0	≤0.3
4	100	Electrode	7.5-8.5	≥9.0	≤9.3	1.55-1.64	≤2.4	≤0.3
4	100	Nipple	5.8-6.5	≥16.0	≤13.0	≥1.74	≤2.0	≤0.3
6	150	Electrode	7.5-8.5	≥8.5	≤9.3	1.55-1.63	≤2.4	≤0.3
6	150	Nipple	5.8-6.5	≥16.0	≤13.0	≥1.74	≤2.0	≤0.3
8	200	Electrode	7.5-8.5	≥8.5	≤9.3	1.55-1.63	≤2.4	≤0.3
8	200	Nipple	5.8-6.5	≥16.0	≤13.0	≥1.74	≤2.0	≤0.3
9	225	Electrode	7.5-8.5	≥8.5	≤9.3	1.55-1.63	≤2.4	≤0.3
9	225	Nipple	5.8-6.5	≥16.0	≤13.0	≥1.74	≤2.0	≤0.3
10	250	Electrode	7.5-8.5	≥8.5	≤9.3	1.55-1.63	≤2.4	≤0.3
10	250	Nipple	5.8-6.5	≥16.0	≤13.0	≥1.74	≤2.0	≤0.3

Chart 2:Current Carrying Capacity For Small Diameter Graphite Electrode

Diameter		Current Load	Current Density	Diameter		Current Load	Current Density
Inch	mm	A	A/m²	Inch	mm	A	A/m²
3	75	1000-1400	22-31	6	150	3000-4500	16-25
4	100	1500-2400	19-30	8	200	5000-6900	15-21
5	130	2200-3400	17-26	10	250	7000-10000	14-20

Advantages

1.Anti-oxidation treatment for longevity.

2.High-purity,high-density,strong chemical stability.

3.High machining accuracy,good surface finishing.

4.High mechanical strength,low electrical resistance.

5.Resistant to cracking & spalling.

6.High resistance to oxidation and thermal shock.

Main Application

Calcium carbide smelting
Carborundum production
Corundum refining
Rare metals smelting
Ferrosilicon plant refractory

RP Graphite Electrode Production Process

Surface Quality Ruler

1.The defects or holes should not more than two parts on the graphite electrode surface, and the defects or holes size not be allowed exceed the data in table below mentioned.

2.There is no transverse crack on the electrode surface.For longitudinal crack,its length should be not more than 5% of the graphite electrode circumference,its width should be within 0.3-1.0mm range.Longitudinal crack data below 0.3mm data should be negligible

3.The width of he rough spot(black) area on the graphite electrode surface should be not less than 1/10 of the graphite electrode circumference,and the length of rough spot(black) area over 1/3 of the graphite electrode length is not be allowed.

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