Good quality Graphite Block Supplier - Cathode Carbon Block – Qifeng
Good quality Graphite Block Supplier - Cathode Carbon Block – Qifeng Detail:
Quick Details:
Product Name: Cathode carbon block
Brand Name: QF
Resistance (μΩ.m): 9-29
Apparent Density (g/cm³ ): 1.60-1.72
Flexural Strength (N/㎡): 8-12
Color: Black
Material: high quality petroleum coke and needle coke
Size: as customer requirement
Application: Electrolytic aluminum
real density: 1.96-2.20
ASH: 0.3-2
sodium expansion: 0.4-0.7
Packaging Description: Packing with wooden cases and steel belt.
Specification
| Specifications | Unit | Test method |
Value |
|||
| 30%GraphiteAddad | 50%Graphite Added | Graphitic Grade | Graphitized Grade | |||
| Real Density | g/cm | ISO21687 | ≥1.98 | ≥1.98 | ≥2.12 | ≥2.20 |
| Apparent Density | g/cm | ISO12985.1 | ≥1.60 | ≥1.60 | ≥1.62 | ≥1.62 |
| Open Porosity | % | ISO12985.2 | ≤16 | ≤16 | ≤18 | ≤20 |
| Total Porosity | % | ≤19 | ≤19 | ≤23 | ≤27 | |
| Compressive Strength(or Cold Crushing Strength) | MPa | ISO18515 | ≥26 | ≥26 | ≥26 | ≥20 |
| Flexural Strength | MPa | IS012986.1 | ≥7 | ≥7 | ≥7 | ≥7 |
| Specific Electrical Resistivity | uom | ISO11713 | ≤35 | ≤30 | ≤21 | ≤12 |
| Thermal Conductivity | W/mk | IS012987 | ≥13 | ≥15 | ≥25 | ≥100 |
| Coefficient of Linear Thermal Expansion | 106/K | ISO14420 | ≤4.0 | ≤4.0 | ≤4.0 | ≤3.5 |
| Ash Content | % | ISO8005 | ≤5 | ≤3.5 | ≤1.5 | ≤0.5 |
| Sodium Expansion(or Rapoport Swelling or Swelling by Alkali) | % | ISO15379.1 | ≤0.8 | ≤0.7 | ≤0.5 | ≤0.4 |

Contact Us
Handan Qifeng Carbon Co., Ltd.
Wechat&WhatsApp: +86-13730413920
Email: Judy_graphite@163.com
Website: https://www.qfcarbon.com
https://qifengcarbon.en.alibaba.com
Product detail pictures:



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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate inside our success for Good quality Graphite Block Supplier - Cathode Carbon Block – Qifeng, The product will supply to all over the world, such as: Belarus, kazan, Kuala Lumpur, With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in beauty and other industries. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.
In general, we are satisfied with all aspects, cheap, high-quality, fast delivery and good procuct style, we will have follow-up cooperation!




