Huahao Sealing · Carbon Graphite Components
Copper graphite is produced by vacuum-impregnating carbon graphite with molten copper alloy, forming a metallic network in the micropores. Huahao Sealing's M106D grade has density 1.85-1.95 g/cm³, combining copper's electrical and thermal conductivity with graphite's self-lubrication for high-load, high-speed bearings and electrical carbon brushes.
| Density | 1.85 – 1.95 g/cm³ |
| Temperature | -200°C ~ 400°C |
| Compressive Strength | 220 – 320 MPa |
| Shore Hardness | 80 – 100 HS |
| Electrical Resistivity | 10 – 50 μΩ·m |
| Friction Coefficient | 0.05 – 0.12 |
| Thermal Conductivity | 40 – 70 W/m·K |
| Impregnant | Copper (Cu) alloy |
High electrical and thermal conductivity — copper metallic network significantly boosts conductivity, suitable for electrical and heat dissipation applications
High load capacity — copper-reinforced matrix increases compressive strength for heavy-duty bearings and thrust bearings
Retained self-lubrication — graphite layered structure maintains self-lubricating properties within the copper network, friction coefficient 0.05-0.12
Wear resistance — copper-filled pores create a hard wear-resistant surface, service life 2-3× longer than standard graphite
Suitable for high speeds — rapid heat dissipation suits applications above 5000 rpm
High-load bearings — heavy machinery, rolling mills, mining equipment
Thrust bearings — axial load support for pumps and compressors
Electrical carbon brushes — motor and generator slip rings
High-temperature seal rings — service below 400°C
Compressor piston rings — oil-free reciprocating seals
| Grade Code | Temperature | Notes |
|---|---|---|
| M106D | 400°C | Copper alloy impregnated, general high-load grade |
Copper (M106D) is rated 400°C with good electrical/thermal conductivity, suitable for high-load and high-speed applications. Antimony (M106H) is rated 500°C with higher hardness, suitable for high-temperature oil pumps and petrochemical service. Choose copper for electrical conductivity, antimony for higher temperature.
Yes. After copper fills the graphite micropores, electrical resistivity drops to 10-50 μΩ·m, suitable for motor carbon brushes and slip rings requiring conductive self-lubrication. Standard graphite has higher resistivity and is unsuitable for high-current applications.
Submit your duty parameters (temperature, pressure, media, speed) — engineers reply with grade selection and quotation within 24 hours.
