100% Original Refractory Carbon Blocks - Cathode Carbon Block – Qifeng

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Often customer-oriented, and it's our ultimate target to become not only probably the most reputable, trustable and honest provider, but also the partner for our customers for High Density Carbon Graphite Block, China Low Sulfur Graphitized Petroleum Coke, Casting Machine Facilities, We are sincerely looking forward to cooperate with customers all over the world. We believe we can satisfy with you. We also warmly welcome customers to visit our factory and purchase our products.

100% Original Refractory Carbon Blocks - Cathode Carbon Block – Qifeng Detail:

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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
Specifications	Unit	Test method	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

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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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