Sunday, March 27, 2011

Atmospheric Corrosion Resistance

protection of zinc-aluminum coated

The alloy coating on Zinc-Aluminum steel provides optimum galvanic protection and exhibits a combination of :
1. The durability of aluminum coatings
2. The sacrificial protection offered by zinc
3. The Zinc/Aluminum alloy coating provides
galvanic protection to bare steel edges by a similar mechanism to galvanized coatings. One way this has been tasted is shown below where coating of similar thickness on Zinc-Aluminum and zinc coated steel have been removed to the-steel base using scribe marks to the atmosphere.
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Effective of Heat Reflectivity of Zinc-Aluminum


The sun ray radiation intensity in Asia, especially during dry season, is quite high due to countrys location in tropical area and long hours of radiation from the morning through the evening.
Zinc- Aluminum coated steel sheet reflects most of the heat (700) and the remaining 30% is absorbed to be released through its upper and lower surfaces
For good temperature of the room the roof, the heat absorption of the roof and the heat out-side through the lower surface or into the room have to below.

Atmosphere exposure test programmers confirm that the corrosion resistances of Zinc- Aluminum steel is far superior to that galvanized coatings. At variety of test sites ranging from typical rural to server marine environments, corrosion rates are determined by exposing sample of Zinc- Aluminum and zinc coated steel. Comparative test at various exposure sites after a range of time periods are shown into the table.

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Tuesday, March 1, 2011

The Advantages of Using Zinc-Aluminum High Tensile G550

The power-voltage high tensile steel melting Zinc-Aluminum G550 nearly doubled from mild steel or Zinc-Aluminum G300 because of the difference is quite significant, voltage high tensile G550 steel used for roofing and roofing on thickness of the wall which equally benefits.

benefits:

  1. Widen the distance gording
  2. Greater load bearing capacity
  3. Not easily folded, bent or dented
  4. Resistant to scratch
  5. Flexibility of design is easier in a binder and Installations
  6. Resistant to high temperatures
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Material of Roofing

In this post i would be explain about Material of Roofing, as we know for select the best material is very important to construct buildings. Apart from naturally occurring materials, many man-made products are in use, some more and some less synthetic. The manufacture of building materials is an established industry in many countries and the use of these materials is typically segmented into specific specialty trades, such as carpentry, plumbing, roofing and insulaion work. They provide the make-up of habitats and structures including homes. Zinc-Aluminum G550 steel is a steel sheet of aluminum that provides strength and high resistance to loading and corrosion.

Zinc-Aluminum G550 steel produced by the process of "Continuous Hot Dip" with beautiful flowers on its surface, and is suitable for roofing, siding, gutters, house frame, exhaust, chimney smoke, and a variety of other purposes that require high durability. Alloy layer consisting of 55% aluminum, zinc and silicon remaining.

The Advantages of Using Zinc-Aluminum High Tensile G550

The power-voltage high tensile steel melting Zinc-Aluminum G550 nearly doubled from mild steel or Zinc-Aluminum G300 because of the difference is quite significant, voltage high tensile G550 steel used for roofing and roofing on thickness of the wall which equally benefits.
We will discuss more about  roofing materials the coming posts.


   

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