Graphite Blocks

Graphite blocks feature excellent corrosion resistance, resistance to molten metal and flux erosion, high thermal conductivity, and good thermal shock resistance. They also have sufficient oxidation resistance and good anti-leakage performance.

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Physical and Chemical Indicators

Item	SKG-1	SKG-2	SKG-3
Bulk Density g/cm3	≥ 1.68	≥ 1.63	≥ 1.55
Apparent Porosity %	≤ 20	≤ 25	≤ 28
Cold Crushing Strength MPa	≥ 28	≥ 25	≥ 18
Cold Modulus of Rupture MPa	≥ 9	≥ 7	≥ 5
Fixed Carbon %	≥ 99.5	≥ 99	≥ 99
Ash Content %	≤ 0.5	≤ 0.5	≤ 0.5
Alkali Resistance	U/LC	U/LC	U/LC
Thermal Conductivity W/(m·K) Room Temp	≥ 100	≥ 80	≥ 60
Thermal Conductivity W/(m·K) at 200 ℃	≥ 80	≥ 60	≥ 40

Prebaked Carbon Bricks for Submerged Arc Furnaces

Product Specifications: 400/800*400/820*1200/4000mm

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Prebaked Carbon Bricks for Submerged Arc Furnaces

Physical and Chemical Indicators

Category	Ash Content %	Cold Crushing Strength MPa	Cold Modulus of Rupture MPa	Bulk Density g/cm3	Porosity %
Ordinary Carbon Bricks	≤ 8	≥ 32	/	≥ 1.52	≤ 20
Third-Generation Large Carbon Bricks	≤ 7	≥ 40	≥ 8	≥ 1.54	≤ 14

Self-Baking Carbon Bricks for Submerged Arc Furnaces

Product Specifications: 400*400*400/600/800mm

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Self-Baking Carbon Bricks for Submerged Arc Furnaces

Physical and Chemical Indicators

Item	Before Baking	After Baking
Fixed Carbon %	≥ 85	≥ 93
Ash Content %	≤ 5	≤ 6
Residual Shrinkage Rate % at 800℃	/	≤ 0.05
Cold Crushing Strength MPa	≥ 30	≥ 30
Bulk Density g/cm3	≥ 1.6	≥ 1.5
Apparent Porosity %	10	20

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