Mechanical Seal Carbon Material Antimony Carbon Rod
Description
Technical Parameters
Using carbon/graphite as the matrix, metallic antimony is infiltrated into the open pores via vacuum and pressure impregnation, followed by heat treatment to stabilize the material structure; products available include standard rods, cut-to-size blanks, near-net-shape blanks, and CNC-finished components.
Impregnated graphite datasheet
|
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 |
Technical Parameters
|
Parameter |
Typical / Available Specification |
|
Material |
Synthetic Graphite + Antimony Impregnation |
|
Bulk Density |
2.20–2.50 g/cm³ |
|
Open Porosity |
<2.0% |
|
Shore Hardness |
85–105 HSA |
|
Compressive Strength |
≥120 MPa |
|
Flexural Strength |
≥65 MPa* |
|
Thermal Conductivity |
15–25 W/(m·K) |
|
CTE |
4.5–5.5 × 10⁻⁶/K |
|
Service Temperature in Air |
Up to 350°C |
|
Rod Diameter |
Ø20–300 mm |
|
Rod Length |
Up to 1000 mm |
|
Machining Tolerance |
Up to ±0.005 mm |
|
Sealing Face Roughness |
Ra ≤0.2 μm |
|
Supply Form |
Rod / Blank / Machined Part |
|
Documents |
COA / MTR Available |
Mechanical Seal Applications
Mechanical Seal Rings
Machining of rotating rings, stationary rings, and throttle rings for sealing systems in industrial pumps, hot oil pumps, and chemical pumps.
Pump Shaft Sleeves
Machining of guide sleeves, sliding bearings, and wear rings for pumps and other fluid handling equipment.
High-Temperature Equipment
Suitable for sealing applications involving high-temperature hot oil, hydrocarbons, and industrial fluids.
Customized Parts
Supports machining of complex features such as O-ring grooves, anti-rotation slots, and mounting holes; compatible with mating materials like SiC and TC.
Customization
Bars and Blanks
Supply of Ø20–300 mm bars and cut-to-size blanks; dimensions and machining allowances confirmed per order.
CNC Precision Machining
Capabilities include turning, milling, grinding, lapping, and polishing; critical dimensions controlled to ±0.005 mm per drawings.
Machining from Drawings
Supports formats such as PDF, DWG, DXF, STEP, and IGES; custom production of seal rings and carbon-graphite parts based on provided drawings.
Manufacturing Process
Material Preparation
Raw material inspection → Vacuum/pressure antimony impregnation → Heat treatment → Performance testing.
Precision Machining
Rough machining → CNC precision machining → Grinding → Face lapping/polishing.
Finished Product Inspection
Dimensional inspection → Geometric tolerance inspection → Roughness inspection → Sealing face inspection → Cleaning and packaging.
Why Choose Us
500+ Overseas Clients
We have served over 500 clients and exported products to 50 countries, with an annual sales volume of approximately 1,000,000 units; we possess extensive experience in consistently fulfilling large-scale overseas orders.
Comprehensive Range of Carbon-Graphite Products
We offer graphite blocks, rods, tubes, bearings, and bushings, as well as mechanical seals, carbon-graphite vanes, and resin-, antimony-, copper-, and silver-impregnated graphite. Our products cater to applications such as pumps and valves, mechanical seals, automotive components, and metallurgy.
Strict Raw Material Testing
We source graphite raw materials from ISO-certified suppliers and implement batch management and sample retention protocols. Incoming material inspections cover carbon content (≥99.9%), ash content (≤0.1%), density, particle size, and microstructure.
100% Visual Inspection Before Shipment
Production is controlled via Standard Operating Procedures (SOPs), with critical dimensions verified using laser measurement and Coordinate Measuring Machines (CMM). Finished products undergo 100% visual inspection alongside spot checks (30–50%) for critical performance indicators.
FAQ
Q: Can I purchase carbon rods instead of finished parts?
A: Yes. We supply rods, blanks, and finished components.
Q: Can you manufacture parts based on drawings?
A: Yes. We accept 2D/3D drawings and various CAD formats.
Q: Can you provide samples?
A: Yes, we can provide material samples or machined samples based on project requirements.
Q: What is the difference between antimony-impregnated carbon and resin-impregnated carbon?
A: Antimony-impregnated carbon is better suited for higher temperatures and loads, whereas resin-impregnated carbon is generally more suitable for environments involving certain chemical corrosives.
Q: Can you provide MTRs or COAs?
A: Yes; specific test parameters are provided in accordance with approved specifications and order requirements.
Q: How do I determine if the material is suitable for my equipment?
A: Please provide details regarding the medium, temperature, pressure, rotational speed, PV value, lubrication conditions, and mating materials, and we can assist with material selection.
Q: What level of precision can be achieved for seal rings?
A: Certain critical dimensions can reach a tolerance of ±0.005 mm; final precision is confirmed based on drawings, dimensions, and material conditions.
Q: Is it suitable for drinking water applications?
A: Antimony-containing materials are generally not used for drinking water or food-contact applications; specific applications require a separate compliance assessment.
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