Overview
T300 Carbon Fiber is one of the world’s most widely used standard modulus carbon fiber grades, originally developed for aerospace and industrial composite applications. It is recognized for its excellent balance of strength, stiffness, processability, reliability, and cost-effectiveness.
T300 is commonly used as a reinforcement material in Carbon Fiber Reinforced Polymer (CFRP) composites, where carbon fibers are combined with epoxy, polyester, or vinyl ester resin systems to create lightweight, high-strength structural components.
Due to its proven performance and broad availability, T300 has become the industry benchmark for standard carbon fiber materials.
T300 Carbon Fiber is widely used in:
- Aerospace Components
- Automotive Parts
- UAV & Drone Structures
- Sporting Goods
- Medical Devices
- Industrial Equipment
- Marine Components
- Robotics Systems
Material Specification
| Property | Value |
|---|---|
| Material Designation | T300 |
| Full Name | T300 Standard Modulus Carbon Fiber |
| Material Family | PAN-Based Carbon Fiber |
| Fiber Type | Continuous Carbon Filament |
| Density | 1.76 g/cm³ |
| Appearance | Black |
| Filament Count Options | 1K, 3K, 6K, 12K |
| Standard Forms | Tow, Fabric, Prepreg, Composite Laminate |
Material Composition
T300 is manufactured from polyacrylonitrile (PAN) precursor fibers.
| Component | Function |
|---|---|
| Carbon Filaments | Structural Reinforcement |
| Epoxy Resin (Typical Matrix) | Load Transfer |
| Surface Treatment | Fiber-Matrix Adhesion |
| Sizing Agent | Processability Enhancement |
The carbon content is typically greater than 92%.
Common T300 Product Forms
| Form | Characteristics |
|---|---|
| T300 3K Fabric | Most Popular |
| T300 6K Fabric | Higher Coverage |
| T300 12K Fabric | Industrial Applications |
| T300 UD Tape | Unidirectional Strength |
| T300 Prepreg | Aerospace Manufacturing |
| T300 Composite Plate | Structural Components |
Mechanical Properties
Fiber Properties
| Property | Value |
|---|---|
| Tensile Strength | 3,530 MPa |
| Tensile Modulus | 230 GPa |
| Elongation at Break | 1.5% |
| Compressive Strength | Excellent |
| Fatigue Resistance | Excellent |
Mechanical Performance
| Property | Performance |
|---|---|
| Strength | Outstanding |
| Stiffness | Excellent |
| Fatigue Resistance | Excellent |
| Impact Resistance | Good |
T300 offers an excellent balance between strength and manufacturability.
Physical Properties
| Property | Value |
|---|---|
| Density | 1.76 g/cm³ |
| Carbon Content | >92% |
| Moisture Absorption | Negligible |
| Dimensional Stability | Outstanding |
| Weight Reduction vs Steel | Up to 80% |
The low density contributes to exceptional lightweight performance.
Thermal Properties
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion | Near Zero |
| Thermal Conductivity | 6–20 W/m·K |
| Thermal Stability | Excellent |
| Continuous Composite Service Temperature | 120–180°C |
| High Temperature Capability (Fiber) | >2000°C (Non-Oxidizing Environment) |
T300 carbon fibers maintain dimensional stability under thermal cycling.
Strength-to-Weight Ratio
| Material | Density (g/cm³) | Tensile Strength |
|---|---|---|
| T300 Carbon Fiber | 1.76 | 3,530 MPa |
| Aluminum 6061 | 2.70 | 310 MPa |
| Stainless Steel 304 | 8.00 | 515 MPa |
| Titanium Grade 5 | 4.43 | 950 MPa |
T300 provides significantly higher specific strength than most engineering metals.
Electrical Properties
Typical Values
| Property | Value |
|---|---|
| Electrical Conductivity | Moderate |
| Surface Resistivity | Low |
| Static Dissipation | Excellent |
| EMI Shielding Capability | Good |
| Conductive Material | Yes |
Electrical Performance
| Property | Performance |
|---|---|
| Electrical Conductivity | Good |
| EMI Shielding | Good |
| Static Control | Excellent |
| Electronics Applications | Suitable |
Like most carbon fibers, T300 is electrically conductive.
Corrosion Resistance
| Environment | Performance |
|---|---|
| Fresh Water | Excellent |
| Salt Water | Excellent |
| Industrial Atmosphere | Excellent |
| Oils & Greases | Excellent |
| Outdoor Exposure | Excellent |
T300 composites are highly resistant to environmental degradation.
Fatigue Resistance
| Property | Performance |
|---|---|
| Cyclic Loading | Outstanding |
| Long-Term Durability | Excellent |
| Structural Reliability | Outstanding |
| Vibration Resistance | Excellent |
Carbon fiber composites generally outperform metals in fatigue-sensitive applications.
Chemical Resistance
| Chemical Environment | Performance |
|---|---|
| Water | Excellent |
| Fuels | Excellent |
| Oils | Excellent |
| Alcohols | Excellent |
| Mild Acids | Good |
| Mild Alkalis | Good |
Chemical resistance depends largely on the resin matrix used.
Manufacturing Characteristics
| Manufacturing Process | Rating |
|---|---|
| Hand Layup | Outstanding |
| Vacuum Infusion | Outstanding |
| Compression Molding | Excellent |
| Autoclave Processing | Outstanding |
| Prepreg Manufacturing | Outstanding |
T300 is one of the most versatile carbon fibers for composite fabrication.
Machinability
| Process | Rating |
|---|---|
| CNC Milling | Excellent |
| CNC Drilling | Excellent |
| Waterjet Cutting | Outstanding |
| Precision Machining | Excellent |
Diamond-coated or carbide tooling is recommended.
International Standards
| Standard | Equivalent |
|---|---|
| Aerospace CFRP Standards | Applicable |
| ASTM Composite Standards | Applicable |
| ISO Carbon Fiber Standards | Applicable |
| Automotive Composite Standards | Applicable |
| GB/T (China) | T300级碳纤维 |
Available Forms
| Product Type | Availability |
|---|---|
| Carbon Fiber Tow | Yes |
| Woven Fabric | Yes |
| Prepreg | Yes |
| Carbon Fiber Sheet | Yes |
| Composite Plate | Yes |
| Machined Parts | Yes |
Typical Applications
Aerospace Industry
- Aircraft Structures
- UAV Frames
- Satellite Components
- Interior Panels
Automotive Industry
- Racing Components
- Body Panels
- Structural Reinforcements
- EV Lightweight Parts
Sporting Goods
- Bicycle Frames
- Tennis Rackets
- Golf Shafts
- Hockey Sticks
Robotics
- Robotic Arms
- Lightweight Structural Components
- Automation Systems
Marine Industry
- Boat Components
- Racing Yacht Structures
- Marine Equipment
Industrial Equipment
- Precision Machinery
- Structural Frames
- Lightweight Mechanical Parts
Advantages
Excellent Strength-to-Weight Ratio
Provides significant weight savings compared with metals.
Proven Industry Standard
One of the most widely used carbon fiber grades globally.
Good Processability
Compatible with most composite manufacturing methods.
Outstanding Fatigue Resistance
Ideal for long-life structural applications.
Excellent Corrosion Resistance
Suitable for harsh environments.
Cost-Effective Performance
Offers an excellent balance between performance and cost.
Limitations
Lower Modulus Than Premium Grades
Not as stiff as T700, T800, or high-modulus fibers.
Conductive Material
May require electrical isolation in some applications.
Brittle Failure Mode
Can fracture under severe impact conditions.
Higher Cost Than Fiberglass
Premium performance comes at a higher material cost.
Comparison with Carbon Fiber Grades
| Property | T300 | T700 | T800 |
|---|---|---|---|
| Tensile Strength | 3,530 MPa | 4,900 MPa | 5,500+ MPa |
| Tensile Modulus | 230 GPa | 230 GPa | 294 GPa |
| Cost | Lower | Higher | Highest |
| Processability | Excellent | Excellent | Good |
| Industrial Usage | Very High | High | Moderate |
Comparison with Fiberglass
| Property | T300 Carbon Fiber | Fiberglass |
|---|---|---|
| Strength | Higher | |
| Stiffness | Higher | |
| Weight | Lower | |
| Fatigue Resistance | Better | |
| Cost | Higher |
T300 is preferred when lightweight structural performance is critical.
Available Surface Finishes
Standard Finishes
- Plain Weave
- Twill Weave
- Satin Weave
Functional Finishes
- Aerospace Grade Surface
- Structural Composite Finish
- UV Resistant Coating
Specialty Configurations
- T300 3K Carbon Fiber
- T300 6K Carbon Fiber
- T300 12K Carbon Fiber
- T300 Prepreg
- T300 Composite Laminate
Frequently Asked Questions (FAQ)
What is T300 Carbon Fiber?
T300 is a standard modulus PAN-based carbon fiber widely used in aerospace, automotive, sporting goods, and industrial composite applications.
What is T300 Carbon Fiber used for?
Typical applications include:
- Aerospace Structures
- Automotive Components
- Drones
- Sporting Goods
- Robotics
Is T300 Carbon Fiber strong?
Yes. T300 offers tensile strength around 3,530 MPa while maintaining very low weight.
Is T300 Carbon Fiber lightweight?
Yes. It is significantly lighter than aluminum, titanium, and steel.
Why is T300 Carbon Fiber popular?
Because it provides an excellent balance of strength, stiffness, reliability, and cost.
Why choose T300 Carbon Fiber?
Because it combines:
- High Strength
- Lightweight Construction
- Excellent Fatigue Resistance
- Corrosion Resistance
- Proven Industry Performance
What is the difference between T300 and T700?
T700 provides higher tensile strength, while T300 offers a more economical solution with excellent overall performance.
Does GCNOV provide T300 Carbon Fiber manufacturing services?
Yes. GCNOV provides:
- T300 Carbon Fiber Component Manufacturing
- Composite Fabrication
- CNC Machining Services
- Structural CFRP Parts
- Prototype Development
- Low-Volume Production
- Mass Production