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High performance stainless steel tubing for highly corrosive environments and seawater applications.

With over 30 years of commercial success, SEA-CURE® has an outstanding performance record, and over 100 million feet has been shipped worldwide.

It is one of the most cost-effective alloys used in power plant condensers, heat exchangers and desalination plants due to its excellent corrosion resistance, good thermal conductivity, and superior mechanical and physical properties. SEA-CURE® is specially engineered to reduce life-cycle cost by preventing tube leaks, ensuring tube cleanliness, eliminating chemical treatment and reducing CO2 costs. Since its inception, SEA-CURE® condenser installations have saved the power generation industry hundreds of millions of dollars.

Contact our team to find out how much it could save you.


  • Lowest life cycle cost
  • Superior corrosion resistance
  • World Class Technical Assistance
  • Better mechanicals for retube applications
  • The ferritic structure of SEA-CURE®  stainless steel provides a high strength/low work hardening material with good ductility.
  • These properties allow high design stress limits with good fabrication characteristics. Because of the nickel addition, SEA-CURE®  has a lower ductile-to-brittle transition temperature than similar ferritic steels without nickel additions.
  • Significantly higher modulus that allows the use of a lighter wall with less problem of vibration
  • Higher steam and water droplet erosion resistance allowing a greater cushion in cases where upset conditions may occur
  • Weldability to other stainless steels
  • Higher strength and modulus which allows more tolerance for those tough designs and installations
  • Over 30 years of commercial history with an outstanding performance record
  • Superior Corrosion Resistance


Size range: OD: 0.625” – 2.000” (15.88mm – 50.80 mm)

Wall: 0.022” – 0.083” (0.406 – 2.10mm)

Max length: 130’ (39m)

Grade: UNS S44660

Specifications: ASTM A-803, ASME SA-803, ASTM A-268, OTS-053

SEA-CURE® tubing is manufactured and tested to the requirements and tolerances of ASTM A-268, A-803, ASME SA-268, and SA-803 and US Patents 4,119,765 and 4,942,922

SEA-CURE® is a registered Trademark of Plymouth Tube Company.