Impregnated Graphite Electrode (IP), Diameter 250-350 mm

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Product Infomation

Product Name	Impregnated Graphite Electrode (IP), Diameter 250-350 mm
Catalog Number	GRA-GE-005
Alias	Impregnated Graphite Electrode for Metallurgy
Appearance	Black solid rod (with nipple)
Molecular Formula	C
Solubility	Insoluble
Storage	Dry environment; moisture-proof and dust-proof
Purity	≥99.8%
Applications	Electric arc furnace steelmaking, metallurgy, alloy smelting, yellow phosphorus production, industrial silicon, brown corundum
Specifications	Ø250-350mm
Description	Impregnated graphite electrode (IP) in diameter 250-350 mm, manufactured from premium needle coke, petroleum coke, and coal tar pitch via a multi-stage process: raw material screening, kneading, extrusion, baking, pitch impregnation, re-baking, graphitization, and precision machining. The pitch impregnation step increases density and reduces porosity, ensuring reliable performance in medium-load electric arc furnace (EAF) operations for steelmaking, industrial silicon, and brown corundum production. Quality-assured under ISO 9001 standards.
Bulk Density (g/cm³)	≥1.65
Resistivity (μΩ·m)	≤7
Flexural Strength (MPa)	≥9.8
Elastic Modulus (GPa)	≤11.5
CTE (10⁻⁶/°C)	≤2.7
Ash Content	≤0.2%
Nipple Resistivity (μΩ·m)	≤6
Nipple Flexural Strength (MPa)	≥13.5
Nipple Elastic Modulus (GPa)	≤13.5
Nipple Bulk Density (g/cm³)	≥1.70
Nipple CTE (10⁻⁶/°C)	≤2.5
Nipple Ash Content (%)	≤0.2

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