In addition to the common circular cross-section, stainless steel pipes also come in various other shapes such as square, triangular, and corrugated. However, this article will primarily focus on circular steel pipes.
Circular steel pipes can be further categorized based on their characteristics as follows:

1. Thin-walled pipes:
These pipes feature thin walls, offering lightweight yet durable properties. They are commonly used in applications requiring lightweight construction and aesthetic appeal.

2. Thick-walled tubes:
In contrast to thin-walled tubes, thick-walled tubes possess significantly thicker walls, offering higher strength and pressure resistance. They are suitable for applications involving heavy loads or high-pressure environments.

3. Large-diameter tubes:
These tubes feature substantial diameters and are commonly used for conveying large volumes of fluids or gases, such as in water mains and gas pipelines.

4. Small-diameter tubes:
Small-diameter pipes have reduced diameters, making them suitable for applications requiring precise control, such as medical equipment and precision instruments.

5. Capillary Tubes:
Capillary tubes are extremely fine steel pipes commonly used in microelectronics and precision machinery, demanding exceptionally high standards for materials and manufacturing processes.

6. U-Shaped Tubes:
U-shaped tubes feature a distinctive curved configuration, frequently employed in heat exchangers and condensers to effectively increase heat transfer surface area.

7. Coiled Tubing:
Coiled tubing involves bending steel pipes into a spiral shape for easier installation and space efficiency, commonly used in air conditioning and refrigeration systems.

8. Thin-Wall Tubing:
This tubing is renowned for its lightweight yet durable properties, frequently employed in applications prioritizing weight reduction and aesthetic appeal. Its thin walls maintain structural integrity while significantly lowering overall weight.

For material selection, thin-walled tubes can utilize austenitic stainless steels such as 304, 304L, 316, or 316L, which offer excellent corrosion resistance and mechanical properties. Additionally, ferritic stainless steels like 439, 443, and 444, along with the nickel-based alloy GH536, are also viable high-quality options.

Product Overview: Thin-walled tubes refer to stainless steel pipes where the wall thickness does not exceed 5% of the outer diameter. Their outer diameter typically ranges from 0.32 to 610 mm, while wall thicknesses span from 0.10 to 20 mm. This tubing excels in water supply systems, particularly for premium drinking water, hot water systems, and water supply installations emphasizing safety and hygiene. It is highly regarded for its safety, reliability, environmental friendliness, and cost-effectiveness.

Product applications are extensive, covering piping for cold water, hot water, potable purified water, and building drainage systems. They are suitable for various structures including commercial buildings, residential complexes, hospitals, and hotels. Their superior performance and broad applicability make thin-walled stainless steel pipes a highly competitive water supply material, poised to play an increasingly vital role in improving water quality and enhancing living standards.

Lightweight walls with exceptional strength
Outstanding mechanical properties ensure safety and reliability
Exceptional corrosion resistance extends service life
Smooth surface reduces friction resistance
Furthermore, these thin-walled pipes comply with a series of international standards, such as ASTM/ASME A/SA312, 376, 269, and 213, ensuring dual assurance of product quality and performance.
9. Thick-Walled Pipes
Thick-walled pipes, contrasting with lightweight thin-walled pipes, feature thicker walls and correspondingly higher strength. These pipes deliver outstanding mechanical properties under heavy loads or high pressure, ensuring safe and reliable operation. Their robust corrosion resistance further extends service life, while the smooth surface reduces friction resistance and enhances efficiency. These thick-walled pipes also comply with international standards like ASTM/ASME A/SA312, 376, 269, and 213, providing dual assurance of quality and performance.