304 & 316 U-Tubes for Heat Exchangers

Henan Bebb Steel is a professional manufacturer of 304 & 316 U-tubes for heat exchangers.
304 "U"-Tubes – A Versatile and Economical Choice
Key Characteristics:
Advantages: Good mechanical properties, formability, and corrosion resistance, with high cost-effectiveness.
Key Limitations: Sensitive to chlorides. Prone to pitting and stress corrosion cracking in water media containing chloride ions (such as cooling water), especially under crevice conditions or at elevated temperatures.

Recommended Application Scenarios:
Media: Pure water, softened water, non-corrosive oils, steam, air, certain organic chemicals.
Environment: Coolers and heaters with extremely low chloride ion content (generally recommended < 100ppm) and low operating temperatures (generally < 60°C).
Industries: Some central air conditioning systems, low-pressure boiler feedwater heaters, certain mild chemical processes.
316 "U"-Tubes – Chloride Resistance Champion, A Reliable Choice
Key Characteristics:
Key Advantages: Added 2-3% molybdenum. Molybdenum greatly enhances resistance to pitting and crevice corrosion in chloride environments.
Wide Applicability: The preferred material for most media containing chloride ions, offering higher safety.
Highly Recommended Application Scenarios:
Media: Seawater, brackish water, cooling tower water (usually containing chloride ion treatment agents), various chemical solvents, acid and alkaline solutions.
Environment: Harsh conditions with high chloride ion content, crevices (such as the contact point between the tube sheet and the tube wall), and high temperatures.
Industries: Core heat exchange equipment in offshore platforms, ships, desalination plants, petrochemicals, chemical processing, and the pharmaceutical industry.