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MATERIAL USEDIN SHIPS

Materials used in ships sea water systems

90/10 Cupro-nickel

  1. 1.     Resistant to high sea water velocities allowing reduced tube diameters
  2. 2.     Resistant to corrosion under stagnant flow conditions and pitting
  3. 3.     Resistant to clogging from marine growth
  4. 4.     Ease of manufacture and welding
  5. 5.     Reasonable cost

 

Stainless steel

  1. 1.     Suffers from deep pitting in stagnant waters-if cleaned regularly this pitting can be reduced

Expected life spans of some materials

Galvanised steel- 6 to 9 years
Copper-Maximum vel 4ft/sec
90/10 Cupro-Nickel- 10yrs+
70/30 Cupro-Nickel- 22 yrs+

Most Answered Questions

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