Low Coefficient of Thermal Expansion UHP Carbon Graphite Electrodes and Nipples

• Customization: Available
• Carbon Content: High-Carbon
• Type: Graphite Electrodes
• Forming Way: Molded Graphite
• Crystal Morphology: Compact Crystalline Graphite
• Composition: 99.9% High Purity Graphite
• Grade: High Purity Graphite
• Transport Package: Cartons in Wooden Cases
• Specification: personalized customized
• Trademark: L. T
• Origin: Cn
• HS Code: 8545110000
• Production Capacity: 5000/Month

Product Description

Low Coefficient Of Thermal Expansion  UHP  Carbon Graphite Electrodes And Nipples

 

                                                                                                                                                                                                lttrade.en.made-in-china.com



A: Company profile
      
  L.T Group has a comprehensive product and technology portfolio that focuses on four fields of graphite - ultrafine particle graphite mould, graphite electrode, graphite crucible, as well as other products mainly made of graphite.
     




B: Graphite electrode application

  Graphite electrode is kind of important conductive material in electric smelting industry, with its specialties: good electrical and thermal conductivity, high machinery strength, anti-oxidant under high temperature, erosion resistance, widely utilized in arc furnace, mineral heating furnace (producing ferroalloy, metal silicon, yellow phosphorus, fused alumina, matte, calcium carbide etc.), resistance furnace (graphitization furnace for producing graphite electrode, melting glass furnace, electric furnace for producing silicon carbide etc.)
  All our graphite electrodes are in line with YB/T4088-2015, YB/T4089-2015, YB/T4090-2015 standards.


C: Product type & tech data

   1. RP graphite electrode
 

Items		Unit	Nominal diameter
			200-300	350-600	780-1400
Electric resistance	Electrode Joint/Nipple	μΩ.m	7.5~8.5 6.5~7.0	7.5~8.5 6.5~7.0	8.5~10.5 6.5~7.0
Flexural strength	Electrode Joint/Nipple	MPa	≥8.5 ≥15.0	≥7.8 ≥15.0	≥6.0 ≥15.0
Elastic modulus	Electrode Joint/Nipple	GPa	≤9.3 ≤13.0	≤9.3 ≤13.0	≤12.0 ≤13.0
Ash content	Electrode Joint/Nipple	%	≤0.3	≤0.3	≤0.3
Bulk density	Electrode Joint/Nipple	g/cm^3	1.55~1.60 ≥1.70	1.55~1.60 ≥1.70	1.59~1.62 ≥1.70
C.T.E	Electrode Joint/Nipple	10^-6ºC	≤2.9 ≤2.7	≤2.9 ≤2.8	≤2.9 ≤2.8

Current load:

Nominal diameter	Allowable current
mm	A	A/cm^2
200~300	10000~13000	15~21
350~600	13500~32000	14~19
780~1400	57000~108000	12~8

  2. HP graphite electrode

 

Items		Unit	Nominal diameter
			200-300	350-600
Electric resistance	Electrode Joint/Nipple	μΩ.m	5.2~6.5 4.8~5.2	5.5~6.8 4.8~5.0
Flexural strength	Electrode Joint/Nipple	MPa	≥11.0 ≥17.0	≥11.0 ≥17.0
Elastic modulus	Electrode Joint/Nipple	GPa	≤11.0 ≤15.0	≤11.0 ≤15.0
Ash content	Electrode Joint/Nipple	%	≤0.3	≤0.3
Bulk density	Electrode Joint/Nipple	g/cm^3	1.64~1.70 1.73~1.79	1.63~1.70 1.73~1.79
C.T.E	Electrode Joint/Nipple	10^-6ºC	≤2.4 ≤2.2	≤2.4 ≤2.2

Current load:

 

Nominal diameter	Allowable current
mm	A	A/cm^2
200~300	13000~17400	17~24
350~600	17400~58000	15~23

3. UHP graphite electrode

 

Items		Unit	Nominal diameter
			200-300	350-600
Electric resistance	Electrode Splice/Nipple	μΩ.m	4.8~5.5 3.6~4.5	4.8~5.6 3.6~4.5
Flexural strength	Electrode Splice/Nipple	MPa	≥11.0 ≥20.0	≥11.0 ≥20.0
Elastic modulus	Electrode Splice/Nipple	GPa	≤13.0 ≤17.0	≤13.0 ≤17.0
Ash content	Electrode Splice/Nipple	%	≤0.3	≤0.3
Bulk density	Electrode Splice/Nipple	g/cm3	1.67~1.72 1.75~1.82	1.67~1.72 1.75~1.82
C.T.E	Electrode Splice/Nipple	10-6ºC	≤1.5 ≤1.4	≤1.5 ≤1.4

Current load:

 

Nominal diameter	Allowable current
mm	A	A/cm^2
200~300	13000~22000	20~30