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As a specialized supplier in high-performance engineering plastics, Shanghai Yunshan Plasticizing Co., Ltd. is proud to offer our premium PA66 Celanese ST801 NC010 Heat Stabilized compound. This material is engineered specifically to meet the rigorous demands of modern automotive underhood environments, where components face extreme temperatures, aggressive fluids, and constant mechanical stress. We understand that reliability in these applications is non-negotiable, which is why we provide this heat-stabilized PA66 grade, designed to deliver exceptional long-term thermal stability and consistent performance. Our commitment is to supply materials that help our clients in the automotive industry manufacture parts that are durable, reliable, and capable of withstanding the harshest operating conditions.
This PA66 compound is formulated to excel in the challenging under-the-hood area of vehicles. Its heat-stabilized nature is its defining characteristic, significantly improving the polymer's resistance to thermal degradation during prolonged exposure to high temperatures. This translates directly into extended service life for components, reduced risk of premature failure, and enhanced overall vehicle reliability. The material retains its key mechanical properties—such as stiffness, strength, and dimensional stability—even after long-term heat aging, making it a trusted choice for critical applications.
Core Features & Technical Advantages:
Superior Heat Aging Resistance: The specialized heat stabilization package protects the PA66 polymer chains from oxidative degradation at elevated temperatures, commonly encountered near engines, transmissions, and exhaust systems.
Excellent Mechanical Properties: It maintains a strong balance of tensile strength, stiffness, and impact resistance, providing structural integrity for demanding components.
Good Chemical Resistance: PA66 naturally resists a wide range of automotive fluids, including coolants, oils, and greases, and the heat stabilization further helps preserve this resistance under hot conditions.
Dimensional Stability: Low moisture absorption compared to some other nylons and good creep resistance ensure parts maintain their shape and fit over time and under load.
Excellent Processability: The ST801 NC010 grade is designed for efficient injection molding, offering good flow characteristics for filling complex molds and producing parts with consistent quality.
Typical Technical Specifications:
The following table outlines key property ranges for this heat-stabilized PA66 grade. Specific values can vary based on processing conditions and part design.
| Property | Typical Value / Condition | Test Standard |
|---|---|---|
| Tensile Strength (Yield) | 80 - 85 MPa | ISO 527 |
| Flexural Modulus | 2800 - 3200 MPa | ISO 178 |
| Charpy Notched Impact Strength (23°C) | 5 - 7 kJ/m² | ISO 179/1eA |
| Melting Temperature | Approx. 260°C | ISO 11357 |
| Heat Deflection Temperature (1.8 MPa) | > 200°C | ISO 75-1/-2 |
Benefits for Your Automotive Applications:
Extended Component Lifespan: Parts resist embrittlement and property loss caused by continuous heat exposure, reducing warranty claims and improving customer satisfaction.
Design Freedom: The combination of heat resistance and good flow allows for the design of complex, thin-walled underhood parts that must withstand high temperatures.
Reliability in Critical Systems: Ideal for components in air intake systems, cooling systems, engine covers, and electrical connectors where failure is not an option.
Consistent Supply & Quality: Sourced from Celanese, a leading global producer, this grade offers batch-to-batch consistency, which is crucial for automated manufacturing processes.
Shanghai Yunshan Plasticizing Co., Ltd., based in the industrial hub of Shanghai, leverages its strategic location and expertise to provide reliable material solutions to manufacturers. We focus on supplying engineered plastics like this PA66 grade that meet the precise needs of the automotive sector. By choosing this heat-stabilized material, you are selecting a product backed by a reputable resin producer and a supplier dedicated to supporting your production needs with consistent quality and technical knowledge. This material represents a smart investment in the durability and performance of your automotive components. We encourage you to contact us for specific technical data sheets, pricing, and to discuss how this PA66 grade can be integrated into your manufacturing process to enhance your product's performance and reliability.
Frequently Asked Questions (FAQ):
Q1: What exactly does "Heat Stabilized" mean for this PA66?
A1: "Heat Stabilized" indicates that additives have been compounded into the PA66 resin to significantly improve its resistance to thermal-oxidative degradation. This means the material retains its mechanical properties and color for a longer time when continuously exposed to high temperatures typical in automotive underhood environments, compared to standard, unstabilized PA66.
Q2: What is the maximum continuous use temperature for this ST801 NC010 grade?
A2: While the Heat Deflection Temperature (HDT) is above 200°C under load, the maximum recommended continuous use temperature in air for long-term property retention is typically in the range of 120°C to 140°C. For specific application temperatures, consulting the detailed technical data sheet is advised.
Q3: Is this material suitable for parts in contact with engine oil or coolant?
A3: Yes, PA66 generally exhibits good resistance to automotive oils, greases, and many coolants. The heat stabilization helps maintain this chemical resistance at elevated temperatures. However, compatibility with specific fluid formulations should be verified through testing for critical applications.
Q4: How does the "NC010" designation affect the material?
A4: "NC010" typically refers to the color and additive package. "NC" often stands for "Natural Color," meaning the resin is supplied in its base, off-white/beige color without additional pigments. This is common for underhood parts where color is not a primary concern. The "010" may refer to a specific stabilization or additive package from Celanese.
Q5: Can this grade be used for injection molding?
A5: Absolutely. Celanese ST801 NC010 is specifically designed for processing by injection molding. It offers good melt flow characteristics suitable for producing complex geometries and thin-walled components commonly found in automotive assemblies.
Q6: What are some typical automotive underhood parts made from this material?
A6: Common applications include air intake manifolds (parts of), resonator housings, engine covers, thermostat housings, coolant system components (like connectors and parts of water outlets), and various brackets and clips that need to withstand high ambient heat.
Q7: Do you provide material samples for testing?
A7: Sample availability can be confirmed upon request. We recommend that customers conduct their own application-specific testing to validate the material's performance for their particular part design, processing conditions, and end-use environment.
Q8: How does this heat-stabilized PA66 compare to glass-filled grades for underhood use?
A8: Unreinforced, heat-stabilized PA66 (like ST801) offers excellent overall toughness, good chemical resistance, and easier processing. Glass-filled grades provide higher stiffness, strength, and dimensional stability but can be more abrasive and have lower impact strength. The choice depends on the specific mechanical and thermal requirements of the component.
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