6 inch HDPE pipe is a high-performance plastic pipe made primarily from high-density polyethylene (HDPE). It is widely used in water supply and drainage systems, agricultural irrigation, industrial fluid transportation, and municipal infrastructure. This pipe specification combines a moderate diameter with excellent mechanical properties, making it a reliable and economical choice for many engineering projects.

6 inch HDPE Pipe Material and Performance Advantages
HDPE pipe is made from high-quality PE100 or PE100RC raw materials, boasting a compact molecular structure and high crystallinity, resulting in excellent tensile strength and impact resistance. Compared to traditional metal or PVC pipes, it resists rust, corrosion, or scaling, maintaining a stable internal smoothness over time, thereby reducing fluid resistance and energy consumption. Furthermore, HDPE exhibits excellent chemical resistance, resisting a wide range of acids, alkalis, and salts, making it ideal for use in chemical and industrial environments.
6 inch HDPE Pipe Specifications and Standards
6-inch HDPE pipe typically complies with international standards such as ASTM D3035, ISO 4427, or GB/T 13663. Its nominal outer diameter is approximately 160mm, and wall thickness can be selected based on the Standard Dimension Ratio (SDR) rating, such as SDR11, SDR17, or SDR21, to meet different pressure requirements.
SDR11 pipe is suitable for high-pressure applications, such as municipal water mains.
SDR17 pipe is suitable for medium-pressure systems, such as agricultural irrigation or industrial water.
SDR21 pipe is used for low-pressure drainage or stormwater systems.
This flexible specification makes HDPE pipe suitable for a variety of engineering scenarios.

Installation and Connection Methods
6 inch HDPE pipe offers excellent flexibility and weldability. It can be joined seamlessly using methods such as butt fusion, socket fusion, or electrofusion, eliminating the common joint leakage issues of traditional piping systems. The pipes are light in weight, easy to transport and install, and can significantly reduce construction costs and cycles. They are particularly suitable for projects with complex terrain and long-distance transportation.
Applications
Municipal Engineering: Used in urban water mains, sewage, and stormwater drainage systems.
Agricultural Irrigation: As irrigation mains or branch pipes, it offers strong weather resistance and UV aging resistance, making it suitable for long-term outdoor use.
Industrial Transportation: Used in chemical fluid, slurry, compressed air, and gas transportation systems.
Cable and Communications Protection: As underground cable protection pipe, it offers corrosion resistance and abrasion resistance.
With its excellent pressure resistance and reliability, 6-inch HDPE pipe demonstrates wide applicability in a variety of industries.

Lifespan and Environmental Performance
HDPE pipe has a service life of over 50 years, requires minimal maintenance, and offers outstanding overall economic efficiency. Its recyclable, environmentally friendly, and non-toxic raw materials align with modern sustainable development concepts. HDPE pipe maintains excellent sealing and stability in harsh environments, including cold regions and seismic zones.
With its high strength, corrosion resistance, reliable connections, convenient installation, and long service life, 6-inch HDPE pipe is an ideal medium-diameter pipe choice for municipal, agricultural, and industrial applications. It not only effectively improves the safety and efficiency of the conveying system, but also conforms to the current trend of green, environmental protection, energy conservation and emission reduction in engineering construction.