ASTM A270 TP304 Stainless Steel Bright Annealed Seamless Sanitary Tube For Food Processing
ASTM A270 TP304 Stainless Steel Bright Annealed Seamless Sanitary Tube is a premium-grade, cold-drawn, seamless tubing specifically engineered for sanitary and hygienic process systems. It is the industry standard for conveying high-purity products like food, beverages, dairy, pharmaceuticals, and cosmetics. The specification ASTM A270 covers the standards for seamless and welded stainless steel sanitary tubing, with TP304 denoting the most common austenitic stainless steel grade (18% Chromium, 8% Nickel). This stainless steel sanitary tube’s combination of a seamless structure, flawless mirror finish, and proven material properties makes it an indispensable component for ensuring product purity, safety, and operational efficiency in the modern food and beverage industry. YUHONG GROUP specializes in manufacturing stainless steel sanitary tubes for more than 30 years. We can provide both seamless and welded tubes.
Stainless Steel 304 Sanitary Tube Chemical Composition:
| Grade |
Chemical Composition % Max. |
| C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
| TP304 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
18.0-20.0 |
8.0-11.0 |
2.00-3.00 |
Key Advantages:
- Seamless construction for increased strength.
- Superior mechanical properties such as tensile and yield strength.
- Polished surface that meets stringent hygiene standards in the medical, food, and beverage industries.
- Superior Hygiene: The seamless construction and BA finish eliminate crevices and pores where microbes can thrive.
- Excellent Cleanability: Smooth surface allows for efficient and effective Sterilize-In-Place processes.
- High Corrosion Resistance: TP304 composition and passive surface resist acids, alkalis, and chlorides common in food processing and cleaning agents.
- Mechanical Strength: Good tensile and yield strength, suitable for moderate pressures and temperatures.
- Long Service Life & Durability: Resists wear, thermal cycling, and maintains integrity over decades.
Standard Sizes:
1. Common Outer Diameters (OD): 1/2" (12.7 mm), 3/4" (19.05 mm), 1" (25.4 mm), 1.5" (38.1 mm), 2" (50.8 mm), 2.5" (63.5 mm), 3" (76.2 mm), 4" (101.6 mm).
2. Common Wall Thickness (Schedule):
Schedule 5S: A thin wall (e.g., 0.065" for 1" tube). Common for low-pressure product lines.
Schedule 10S: The most common standard wall (e.g., 0.083" for 1" tube). Balances strength, flow, and cleanability.
Other schedules (40S, 80S) are available for higher-pressure utility lines.
3. Standard Lengths: Typically supplied in 20’ (6.1 meters) random lengths. Precise cut lengths (e.g., 3m, 6m) are also available to minimize welds and waste during fabrication.
Applications Of Stainless Steel Sanitary Tubes:
- Product Transfer Lines: For milk, beer, wine, juices, sauces, and liquid food ingredients.
- CIP/SIP Systems: As supply and return lines for cleaning and sterilization fluids.
- Process Connections: Between tanks, pasteurizers, homogenizers, filters, and fillers.
- Brewery and Winery: For wort, beer, and wine transfer; fermentation and bright beer tank connections.
- Dairy Processing: In cheese, yogurt, and ice cream production lines.
- Biopharma and Cosmetics: For high-purity water and product lines where hygiene is paramount.
- Pharmaceutical Industry
- Semiconductor Industry
- Nuclear Power
- Oil and Gas Industry
- Commercial Aircraft Programs
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