Products Description
The High Temperature Graphite Tube in Heat Exchanger is a graphite tube specifically designed for heat exchange systems operating in high-temperature and highly corrosive conditions. It is widely used in heat exchange equipment in industries such as chemical, metallurgy, and energy.
Products Advantages
Corrosion Resistance: Graphite possesses natural chemical inertness, making it stable against strong acids, strong alkalis, and various corrosive media.
High Thermal Conductivity: Graphite's continuous crystal structure results in a thermal conductivity higher than most corrosion-resistant metals.
Resistant to Cracking: Its low coefficient of thermal expansion combined with its dense microstructure allows it to withstand frequent thermal cycling.
High Machining Precision: Utilizing CNC machining and precision grinding processes ensures high dimensional consistency.
Products Advantages
Chemical Industry: Graphite heat exchange tubes used in acid-base heat exchangers and reactor heat exchange systems.
Metallurgy and Metal Processing Industry: Used in high-temperature waste gas heat recovery systems and heat exchange devices in smelting processes.
New Energy and Materials Industry: High-temperature heat exchange equipment used in the production processes of lithium battery materials and carbon materials.
Environmental Protection and Energy Engineering: Corrosion-resistant heat exchange components used in flue gas cooling and tail gas heat recovery systems.
Fine Chemical and Pharmaceutical Industry: Used in high-purity medium heat exchange processes to avoid metal contamination.
Product Customization
Graphite Purity Grade (Standard / High Purity / Ultra-High Purity)
Pipe Diameter and Length (Inner Diameter, Outer Diameter, Wall Thickness Customizable)
Density and Thermal Conductivity Grade
Machining Accuracy Grade (Conventional / High Precision)
Surface Treatment (Original Machining / Finished Machining)
Operating Condition Matching (High Temperature / Strong Corrosion / High Pressure Environment)
Graphite Tube material data sheet
| W-4 | W-5 | W-6 | W-7 | W-8 | WH-5 | WH-7 | WH-8 | ||
| bulk density | g/cm³ | 1.75 | 1.85 | 1.9 | 1.82 | 1.9 | 1.68 | 1.85 | 1.9 |
| Resistivity | uΩm | 8-11 | 8-10 | 8-9 | 11-13 | 11-13 | 13-15 | 11-13 | 11-13 |
| Thermal conductivity(100℃) | W/m.k | 110-120 | 130-140 | 130-140 | 110-120 | 110-120 | 80-100 | 100-120 | 110-120 |
| Thermal expansion coefficient (room temperature - 600℃) | 10-6/℃ | 5.46 | 4.75 | 4.8 | 5.8 | 5.85 | 5.8 | 5.9 | 5.85 |
| Shore Hardness | HSD | 42 | 48 | 53 | 65 | 70 | 60 | 68 | 72 |
| Flexural strength | Mpa | 38 | 46 | 55 | 51 | 60 | 38 | 62 | 70 |
| Compressive strength | Mpa | 65 | 85 | 95 | 115 | 135 | 80 | 135 | 160 |
| Elastic modulus | GPa | 9 | 11.8 | 12 | 12 | 13 | 8.8 | 12 | 13 |
| Porosity | % | 17 | 13 | 11 | 12 | 11 | 18 | 12 | 11 |
| Ash | PPM | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Purification of ash | PPM | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| grain size | um | 13-15 | 13-15 | 8-10 | 8-10 | 8-10 | 8-10 | 7 | 5 |
| Application | common use | common use | Continuous casting, sintering, high temperature metallurgy | EDM,Photovoltaic | EDM,Photovoltaic,GLASS | EDM | common use,EDM | EDM,Photovoltaic,GLASS |
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FAQ
Q: What is the maximum operating temperature of graphite heat exchange tubes?
A: Up to 3000℃ in inert or vacuum environments. In oxidizing environments, it is recommended to control the operating temperature according to the specific operating conditions.
Q: What are the advantages compared to metal heat exchange tubes?
A: Graphite has stronger corrosion resistance and thermal stability, making it particularly suitable for highly corrosive and high-temperature environments.
Q: Is it prone to cracking?
A: The product adopts a dense structural design, possessing excellent thermal shock resistance, and is not prone to cracking under normal operating conditions.
Q: Do you support non-standard customization?
A: Customization is supported according to drawings or operating parameters, including dimensions, purity, and structural form.
Q: How is product quality inspected?
A: Each batch of products undergoes dimensional, density, appearance, and key performance testing to ensure stability.
Q: What is the typical delivery time?
A: Standard specifications: 7-15 days. Delivery time for customized products depends on the complexity.
Q: How is the product protected during transportation?
A: Shockproof and moisture-proof industrial-grade packaging is used to ensure safe long-distance transportation.
Q: Do you support long-term stable supply?
A: We support long-term cooperation and bulk supply, and production can be scheduled according to annual plans.
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