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Help CenterDMDA8008 HDPE Granules for High-Stress Pipe Applications, Standard Compliant
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Shanghai Wenqin Plastics Co., Ltd., established in 2020, specializes in providing high-performance polymer materials for demanding industrial applications. We proudly introduce our DMDA8008 HDPE Granules, engineered specifically for the fabrication of high-stress pipes. This product represents our commitment to delivering materials that meet rigorous industry standards while offering exceptional reliability and longevity in critical infrastructure projects.
Core Product Introduction & Value Proposition:
Our DMDA8008 grade is a premium High Density Polyethylene resin formulated to withstand extreme operational pressures and environmental stresses commonly encountered in pressure piping systems. It is designed for applications where failure is not an option, providing a robust material solution that enhances the safety and durability of pipeline networks.
Detailed Product Characteristics & Technical Advantages:
- Exceptional Stress Crack Resistance: The polymer formulation significantly delays the onset and progression of environmental stress cracking (ESC), a common failure mode in HDPE pipes under sustained load and in certain chemical environments.
- High Hydrostatic Design Basis: Offers a strong Hydrostatic Design Basis (HDB), allowing for the design of pipes with higher pressure ratings or thinner walls for equivalent pressure, optimizing material usage and cost.
- Excellent Long-Term Performance: Demonstrates superior performance in long-term pressure tests, ensuring compliance with standards like ASTM D2837 and providing confidence in the pipe's lifespan.
- Good Processability: The granule form ensures consistent melt flow and processing characteristics, facilitating efficient extrusion into pipes with uniform wall thickness and quality.
- Chemical & UV Resistance: Provides inherent resistance to a wide range of chemicals, fuels, and offers good stability against ultraviolet degradation when properly compounded with stabilizers.
Technical Specifications & Typical Properties:
The following table outlines key typical properties of the DMDA8008 HDPE granules. Please note that specific values can vary based on processing conditions and final compound formulation.
| Property | Typical Value / Description | Test Method / Reference |
|---|---|---|
| Density | 0.950 - 0.955 g/cm³ | ASTM D792 |
| Melt Flow Rate (MFR) | 0.8 - 1.2 g/10 min (190°C, 2.16 kg) | ASTM D1238 |
| Tensile Yield Strength | ≥ 26 MPa | ASTM D638 |
| Flexural Modulus | ≥ 1100 MPa | ASTM D790 |
| Environmental Stress Crack Resistance (ESCR) | F50 > 500 hours (Condition B, 10% Igepal) | ASTM D1693 |
| Hydrostatic Design Basis (HDB) | Category PPI 1600 psi or higher | ASTM D2837 |
| Recommended Application | Pressure pipes for water, gas, industrial fluids; high-stress conduits | - |
Benefits to Customers & End-Use Applications:
- Enhanced Pipeline Safety & Reliability: Using DMDA8008 reduces the risk of premature pipe failure, protecting assets and ensuring continuous service.
- Compliance with Industry Standards: Facilitates the production of pipes that meet or exceed national and international standards for pressure pipe applications.
- Potential for Design Optimization: The high HDB may allow for cost-effective pipe designs, potentially reducing material consumption without compromising performance.
- Suitable for Critical Applications: Ideal for municipal water mains, natural gas distribution pipes, industrial chemical lines, and mining slurry pipelines where operating conditions are severe.
Trust & Credibility Backing:
Shanghai Wenqin Plastics operates from our facility in Shanghai, leveraging strategic ports like Shanghai and Ningbo for efficient global logistics. Our company, though established in 2020, has built a solid foundation supported by a comprehensive quality management system evidenced by certifications including ISO9001, ISO14000, and OHSAS18001. We serve a diverse global market spanning North America, South America, Europe, Asia, Africa, and Oceania, demonstrating our product's international acceptance. Our focused team of 11-50 professionals ensures dedicated attention to product quality and customer service. This DMDA8008 HDPE granule is a product of this disciplined environment, offering you a reliable, standard-compliant material choice for your most demanding pipe projects. We invite pipe manufacturers and engineering firms to contact us for samples, detailed technical data sheets, or to discuss your specific requirements.
Frequently Asked Questions (FAQ):
-
Q: What exactly does "high-stress" refer to in pipe applications for this material?
A: "High-stress" typically refers to operating conditions involving sustained internal pressure, exposure to aggressive chemicals, temperature fluctuations, or soil movements that impose constant stress on the pipe structure. DMDA8008 is formulated to resist failure under these conditions. -
Q: Is this grade suitable for potable water pipes?
A: Yes, HDPE is widely used for potable water distribution. The base resin complies with relevant material requirements. Final suitability depends on the complete compound meeting specific national standards for drinking water contact, which can be achieved with appropriate additive packages. -
Q: Can we use DMDA8008 for gas pipe applications?
A: Absolutely. Its high stress crack resistance and pressure rating make it a candidate for natural gas distribution pipes. It must be compounded and processed according to the stringent standards applicable to gas piping systems. -
Q: What are the available colors?
A: The primary form is natural granules. Colors like black (for UV protection) or other standard pipe colors can be provided through custom compounding. Please inquire for specific color requirements. -
Q: How does the ESCR performance compare to standard HDPE pipe grades?
A: DMDA8008 offers significantly improved ESCR compared to many standard pipe grades. The typical F50 value exceeding 500 hours under Condition B indicates a high level of resistance, aiming to extend service life in challenging environments. -
Q: Do you provide technical support for processing this material?
A: Yes, we offer basic processing guidelines and typical extrusion parameters. For complex applications, further technical consultation is available upon request to help optimize your production process. -
Q: What is the packaging and minimum order quantity?
A: Standard packaging is 25kg bags. Minimum order quantity can be discussed based on your needs and logistics considerations. -
Q: Are the certifications like ISO9001 applicable to this specific product?
A: Our company operates under an ISO9001 certified quality management system, which governs our production, testing, and supply processes for all products, including DMDA8008 HDPE granules. This ensures consistent quality and procedural control.
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