Cathode Carbon Block

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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
004

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


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