Thursday, April 26, 2007

GALVANNEALED

Galvannealed or Galvanneal, Is the result from the combined process of galvanizing and annealing the steel. Galvanneal does not flake off its galvanized coatin when formed, stamped and bent. The very fine matte finish acts like a printer and easily adheres to paint and is very rust proof, only white to dark grey marks appear if it comes in contact with water. Galvanneal sheets offers good paintability, weldability, corrosion resisttance, and formability. It is extensively used in the automotive, signage, electric equipment, and other industries requiring good paintability and long reliable service life.

Galvannealed sheet is carbon steel sheet coated with zinc on both sides by the continous hot-dip process described in production methods. Immediately as the strip exits the coating bath, the molten zinc coating is subjected to an in-line heat treatment that converts the entire coating to a zinc-iron alloy.

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