estd - 1975

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Aluminium Brass Tubes

STANDARD: BS, ASTM, DIN, NFA, JIS and IS.

Product Application Area : Power Plants, Desalination Plants, Ship Building & Ship Repair, Heat Exchangers and Radiators, Refineries, Offshore Oil rigs, Condensers, Evaporators, Ferrules and Distillers.

Characteristics : A Copper Zinc Alloy containing Aluminium and small amount of Arsenic which is added as an inhibitor against dezincification. Inhibited Aluminium Brass resists the action of high velocity salt and brackish water and is commonly used for condenser tube. The outstanding characteristic of Aluminium Brass is the high resistance to impingement attack. Tubes of this alloy are recommended for use in marine and land power stations where cooling water velocities are high and where inhibited admiralty brass has failed from impingement. Guide to the selection of tube material: Sea Water: a. Dissolved salts more than 2000 ppm.b. Suspended solids more than 30 ppm.c. H2S or Ammonia is less that 1 ppm.Permissible average velocity of water 2.0 - 2.5 metres/sec.

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