Our A270/A554 Stainless Steel Round Pipes are top - notch products for diverse applications. Available in a wide range of sizes, with outer diameters typically from 10 mm to 100 mm and thicknesses spanning 0.1 - 20 mm, they can be customized to meet specific project needs.
Made from high - grade stainless steel, these pipes offer excellent corrosion resistance, making them suitable for use in harsh environments, such as in the chemical industry, food and beverage processing, and marine applications. Their seamless construction ensures uniform strength and leak - free performance, crucial for transporting fluids and gases.
With a surface finish option including hot - rolled, cold - rolled, 2B, BA, and more, our pipes can satisfy different aesthetic and functional requirements. Whether it's for pipeline transport, boiler applications, or as components in machinery, our A270/A554 Stainless Steel Round Pipes are reliable choices that combine durability, precision, and versatility.
For 304-grade A270/A554 pipes: Contain chromium (Cr, ~18%) and nickel (Ni, ~8%), providing strong resistance to general atmospheric corrosion, fresh water, and mild chemical media (e.g., household detergents, food-grade acids). Suitable for non-high-salt, non-aggressive environments.
For 316/316L-grade A270/A554 pipes: Add molybdenum (Mo, ~2–3%) on the basis of 304, significantly enhancing resistance to chloride ion (Cl⁻) corrosion. They can withstand seawater, salt spray, and corrosive solutions (e.g., dilute sulfuric acid, pharmaceutical intermediates), avoiding "pitting corrosion" that plagues lower-grade stainless steels.
2. High Ductility & Fabrication Versatility
As austenitic stainless steel products, A270/A554 round pipes have excellent ductility and toughness at room temperature, supporting a variety of processing operations:
Bending & Forming: Can be cold-bent into arcs or elbows without cracking (critical for piping systems that need to avoid right-angle joints).
Welding: Compatible with common welding methods (e.g., TIG, MIG welding); welded joints retain good strength and corrosion resistance (especially 316L, which has low carbon content to prevent intergranular corrosion after welding).
Cutting & Polishing: Easy to cut to custom lengths, and the surface can be polished to meet sanitary or decorative requirements (e.g., mirror finish for food processing).
ASTM A270 specifically emphasizes sanitary requirements for stainless steel tubing, making it ideal for scenarios with strict hygiene standards:
Smooth inner/outer surfaces (Ra value controlled to minimize dirt accumulation), easy to clean and sterilize.
No heavy metal leaching (e.g., lead, cadmium), compliant with food safety (FDA) and medical device (GMP) regulations.
II. Structural Advantages of Round Pipe Design
Compared to square/rectangular pipes, the circular cross-section of A270/A554 pipes offers unique functional benefits:
1. Uniform Stress Distribution & High Pressure Resistance
The circular shape distributes internal/external pressure evenly across the pipe wall, avoiding stress concentration (a common issue with angular pipes). This makes A270/A554 pipes ideal for pressure-bearing scenarios (e.g., water supply pipelines, compressed air systems, chemical fluid transmission), with higher burst pressure limits than non-circular pipes of the same material and wall thickness.
2. Low Fluid Resistance for Efficient Flow
The smooth, curved inner wall of round pipes minimizes friction with fluids (e.g., water, chemicals, gases), reducing pressure loss during transmission. This is critical for systems requiring high flow efficiency (e.g., beverage filling lines, industrial cooling water pipelines).
3. Easy Installation & Compatibility
Round pipes are compatible with standard pipe fittings (e.g., elbows, tees, flanges) widely available in the market, simplifying installation and reducing the need for custom components. Their symmetric shape also makes alignment easier during assembly, improving construction efficiency.
