Products Description
Carbon Graphite Seal for Steam Turbines is a high-performance sealing component for steam turbine shaft sealing systems. It is mainly used to prevent steam leakage, stabilize shaft seal pressure, and improve overall machine operating efficiency. It is widely used in power, energy, and industrial steam systems.
Products Advantages
High Temperature Resistance: Utilizing high-purity carbon graphite materials, and undergoing high-temperature calcination and structural densification treatment, it can operate stably for extended periods in high-temperature steam environments.
Good Self-Lubricating Properties: The layered structure of carbon graphite naturally possesses self-lubricating properties, with a friction coefficient typically ≤0.15, achieving low-friction sealing without additional lubrication.
Corrosion Resistance: Carbon graphite materials exhibit stable performance in high-temperature, high-humidity, and weakly corrosive steam environments, and are not prone to cracking or oxidation.
Products Applications
Thermal Power Generation Industry: Used in the shaft end sealing system of steam turbine generator sets to reduce steam leakage and improve operating efficiency.
Industrial Steam Turbine Equipment: Suitable for shaft seals and end face seals of steam turbines used in chemical, metallurgical, cement, and other industries.
Customization Options
Material Grade: Standard carbon graphite / High-purity graphite / Antioxidant modified graphite
Size Customization: Outer diameter, inner diameter, and thickness can be machined according to drawings or samples.
Density and Strength Grade: Customized according to rotation speed and pressure requirements.
Machining Accuracy: High-precision grinding and surface treatment are available.
Assembly Type: Complete sealing assembly or individual piece supply is available.
Material Data Sheet
|
Type |
impregnated material |
bulk density (g/cm³) |
Hardness shore (HS) |
Flexural Strength (MPA) |
compressive strength(MPA) |
Porosity ( %) |
Coeficient of expansion (10-6/oC) |
Max working temperature (oC) |
|
M106 G |
Silver(G) |
2.80 |
80 |
65 |
190 |
2.0 |
900 |
|
|
M106P |
copper(P) |
2.20 |
80 |
70 |
210 |
3.0 |
6.8 |
400 |
|
M106D |
Antimony(D) |
2.2-2.3 |
85 |
62 |
190 |
2.2 |
7.0 |
480 |
|
M154D |
2.2-2.3 |
70 |
55 |
150 |
2.2 |
7.0 |
480 |
|
|
M106A |
aluminium alloy(A) |
2.00 |
40 |
60 |
120 |
2.5 |
7.3 |
350 |
|
M106B |
Babbitt Alloy |
2.50 |
80 |
40 |
70 |
7.0 |
5.2 |
220 |
|
M106K |
resin |
1.75 |
80 |
60 |
176 |
1.0 |
4.0 |
200 |
|
M154K |
1.70 |
70 |
50 |
100 |
1.5 |
3.5 |
200 |
Pure Carbon Graphite 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 |
More carbon graphite products for your reference
Production workshop display
FAQ
Q: What are the advantages compared to metal seals?
A: Graphite possesses self-lubricating and thermally stable properties, effectively reducing friction and wear, making it particularly suitable for continuously operating steam turbine systems.
Q: Has the product undergone quality inspection?
A: Each batch of products undergoes density, strength, dimensional, and appearance testing to ensure compliance with design and usage requirements.
Q: Can you customize according to drawings or samples?
A: We support processing based on provided drawings or samples, and can precisely match different steam turbine models.
Q: What is the typical delivery time?
A: Standard specifications are shipped in 7–10 days; customized products typically take 10–20 days.
Q: Do you support export and long-term cooperation?
A: We support export packaging and documentation, and can provide stable bulk supply and technical support for long-term cooperative clients.
Hot Tags: carbon graphite seal for steam turbines, China carbon graphite seal for steam turbines manufacturers, suppliers, Graphite Seal Ring, Carbon Graphite seal, graphite carbon ring seal, Graphite Ring
