Carbon based materials

Carburant

Carburant is an appellative of every kind of additive carbon materials that are used to smelt steel, iron products.  Paya Fararon provides different types of carburant as follow:

  1. Coal
  2. Gas Coke (semi-coke)
  3. Calcined Petroleum Coke (CPC)
  4. Metallurgical Coke
  5. e.Graphite Grain

Every kind of product as per the size that customers request.

Please contact us for additional information of products.

 Coal

Grade Coal Fine Coal Medium Coal Hunk
Moisture (% max) 5 5 5
Ash (% max) 12 8 8
Volatile Matter (% max) 34 31 31
Sulfur (% max) 1 1 1
Fixed Carbon (% min) 55 55 55
Size (mm 90% min) -5 +5-25 +35-150

 Gas Coke (Semi-coke)

Grade Type 1 Type 2 Type 3
Ash (% max) 9 10 11
Volatile Matter (% max) 4.5 5 6
Fixed Carbon (% min) 89.5 85 83
Sulfur (% max) 0.8 0.8 0.8
Phosphorus (% max) 0.035 0.035 0.035
Moisture (% max) 8 8 8
Size (mm 90% min) 5-25 or10-30 5-25 or 10-30 5-25 or 10-30

 Calcined  Petroleum Coke (CPC)

Grade Type 1 Type 2 Type 3
Fixed Carbon (% min) 95 98 99
Ash (% max) 3.5 1 0.5
Volatile Matter (% max) 1.5 1 0.5
Sulfur (% max) 0.5 0.5 0.5
Moisture (% max) 1.5 0.5 0.5
Size (mm 90% min) 1-5 or 2-8 1-5 or 0-10 1-5 or 10-25

 Metallurgical Coke

Grade Type 1 Type 2 Type 3 Type 4 Type 5
Ash (% max) 10.5% 12% 12.5% 13% 10.5%
Moisture (% max) 5% 5% 5% 5% 5%
Volatile Matter (% max) 1.50% 1.50% 1.50% 1.50% 1.50%
Sulfur (% max) 0.60% 0.60% 0.60% 0.60% 0.60%
Phosphorus (% max) 0.035% 0.035% 0.035% 0.035% 0.035%
Fixed Carbon (% min) 88.00% 86.50% 86.00% 85.50% 88.550%
Size (mm 90% min)

 Graphite Grain

Grade Type 1 Type 2 Type 3 Type 4
Fixed Carbon (% min) 99.5 99 98 90
Sulfur (% max) 0.02 0.03 0.05 0.08
Ash (% max) 0.3 0.5 1 9
Volatile Matter (% max) 0.2 0.5 1 1
Moisture (% max) 0.5 0.5 0.5 1

Electrode Paste

Electrode paste is used as consumptive conductive material in self-baking Soderberg electrode in the Submerged Electric Furnace (SAF). Paya Fararon provide Electrode Paste in various specifications and different sizes depending on the customers’ furnace size, electrode load and product application. For furnaces with large diameter and high load electrodes (FeSi, CaC2), cylinders with low softening point is generally recommended while for smaller furnaces with low load electrodes (FeNi), blocks or briquettes with high softening point is preferred. However the optimized selection is much related to the paste melt-down pattern experienced for the individual customer’s furnace.

Please contact us for additional information of products.

 Specifications and properties:

Item     PF-1     PF-2    PF-3    PF-4
Ash , % ≤ 4.0 6.0 7.0 9.0
Volatile Material, % ≤ 12.0-15.5 12.0-15.5 9.5-13.5 11.5-15.5
Compressive Strength, Mpa ≥ 18.0 17.0 19.6 19.6
Resistivity, μΩm ≤ 65 75 80 90
Bulk Density, g/cm3 ≥ 1.38 1.38 1.36 1.36
Plasticity, % 10-30 10-30 10-30 10-30
Cylinder: Ø 400 × 1000 mm
Ø 500 × 1000 mm
Ø 600 × 1000 mm
Block: 350 × 250  × 250 mm
Briquette: 90× 70  ×70 mm

Other size and shapes on request.

 Package:

On pallet with or without wrapped with plastic, other on request.

Furnace Lining Products

Paya Fararon provides a full range of shaped products, such as blocks/ bricks in carbon, graphite, alumina, silicon carbide and clay. We also supply a series of unshaped products, such as ramming paste, cements and grouts.

The following are our standard specifications for several of our electric smelting furnace lining products.

Please contact us for additional information of products.

Micropore and Super Micropore Carbon Blocks

  • (Application areas: furnace hearth and bottom)

Micropore and Super Micropore Carbon Blocks use high temperature electric calcined anthracite and synthetic graphite as primary materials, with various additives. They are molded under high pressure, baked, and machined to specifications.

They have high thermal conductivity and low permeability; they also have excellent resistance to hot metal erosion.

Specification Unit Micropore Super Micropore
Bulk Density g/cm3 ≥ 1.63 ≥ 1.70
Apparent Porosity % ≤ 16 ≤ 15
Compressive Strength MPa ≥ 38 ≥ 36
Permeability MDa ≤ 9.0 ≤ 1.0
Thermal Conductivity ( 20°C ) W/m°K ≥ 9 ≥ 16