• YUHONG brand goods have been already exported to more than 85 countries With more than 35 years' experience, because of strict quality control policy, excellent sales service, delivery on time. YUHONG won more and more new clients and got more and more repeat orders from old clients, in YUHONG People's mind: Quality is First Important!

Sanitary ASME SA270 TP304 Stainless Steel Bright Annealed Tube (Threaded End)

This sanitary stainless steel tube is manufactured to ASME SA270 standard with TP304 material, and undergoes bright annealing treatment to deliver exceptional corrosion resistance, high cleanliness, and a smooth inner surface. The threaded ends allow for quick installation and system integration, making it ideal for industries with stringent hygiene requirements such as food, pharmaceutical, and biotechnology.

1.Chemical & Mechanical Properties

Mechanical Properties

2. Key Adventages

• Bright Annealed Finish

Mirror-like smooth interior and exterior surfaces minimize contaminant adhesion and simplify cleaning and sterilization.

• Corrosion Resistance

Suitable for high-temperature, high-humidity, and corrosive environments, extending service life.

• Sanitary Certifications

Complies with international sanitary standards such as FDA and 3-A, meeting requirements for food and pharmaceutical industries.

• Threaded Ends

Precisely machined threaded connections ensure leak-proof performance and enable fast installation and disassembly.

3. Key Applications

Food & Beverage: Transfer lines, filling systems, CIP/SIP equipment

Pharmaceutical: Purified water systems, bioreactors, sterile pipelines

Biotechnology: Fermentation systems, media transfer, lab pipelines

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Why choose TP304?

• Excellent Overall Performance: TP304 is the "benchmark" austenitic stainless steel grade, offering the best balance between formability, durability, and cost. Its key Nickel (Ni) content (~8-10.5%) ensures an austenitic structure at both room and cryogenic temperatures, resulting in superior toughness and strength.

• Corrosion Resistance Mechanism: TP304 contains a minimum of 18% Chromium (Cr). Upon exposure to oxygen, Chromium forms an ultra-thin (only 2-5 nanometers) but incredibly dense and adherent chromium oxide passive layer on the surface. This layer effectively isolates the steel substrate from corrosive media and is self-healing in the presence of oxygen, even after mechanical damage.

• Key Difference from 316: The higher-grade TP316 stainless steel adds 2-3% Molybdenum (Mo). Molybdenum significantly enhances resistance to chloride pitting and crevice corrosion. Therefore, TP304 is the most cost-effective choice for applications with very low chloride ion content; for environments involving seawater, high halides, or strong oxidizing salts, an upgrade to TP316 is recommended.