Jan. 20, 2020
Since its introduction, hot-dip galvanized steel has been widely used in various industries such as construction and home appliances. Due to the continuous expansion of the scope of use, the product's formability and various properties of the steel sheet are continuously improved, and the resulting aluminum-zinc plated steel sheet is superior to the hot Galvanized Steel Sheet in some properties. Aluminized zinc-plated steel sheet is a cold-rolled hardened steel sheet with various strengths and thickness specifications as the base material, and is obtained by hot dip plating. Its coating composition is composed of 55% aluminum, 43.5% zinc, 1.5% silicon and appropriate trace elements. The performance of aluminized zinc over hot galvanized during production and processing is mainly reflected in the following aspects.
Galvanized Steel Sheet
1.Processing performance
In terms of processability, aluminized zinc steel sheet is similar to hot-dip galvanized steel, which can fully meet the requirements of rolling, stamping, bending and other forms of processing.
2.Corrosion resistance
The test is under the premise of hot-dip galvanized steel and aluminized zinc steel with the same thickness, coating and surface treatment. Aluminized zinc has better corrosion resistance than hot-dip galvanized, and its service life is 2-6 times that of ordinary galvanized steel.
3.Light reflection performance
Aluminized zinc has twice the ability to reflect heat and light than galvanized steel, and its reflectivity is greater than 0.70, which is better than 0.65 specified by the EPA Energy Star.
4.Heat resistance
Ordinary hot-dip galvanized products usually do not exceed 230 degrees, and 250 degrees will change color, while aluminized zinc plate can be used for a long time under 315 degrees. In the 300-degree environment for 120 hours, Baosteel's heat-resistant passivated aluminum-zinc plated steel has a much lower color change than aluminum and aluminum-plated plates.
5.Mechanical properties
The mechanical properties of aluminized zinc steel sheet are mainly manifested in yield strength, tensile strength and elongation. Ordinary DC51D grade 150g / sq. Galvanized steel plate generally has a yield strength between 140-300mpa, a tensile strength between 200-330, and an elongation between 13-25. The grade of DC51D + AZ aluminized zinc-plated aluminized zinc steel plate with a yield of 150 g / square is between 230-400mpa, the tensile strength is between 230-550, and the extension rail is between 15-45.
Because aluminized zinc is a high-density coated alloy steel, in addition to the above advantages, there are some defects:
(1)Welding performance
Due to the increase of mechanical properties, the surface of the inner substrate has a better coating density and a relatively high manganese content. Therefore, the aluminum-zinc coating cannot be welded under ordinary welding conditions and can only be connected by other parties such as rivets. In terms of welding, hot-dip galvanized steel performs better without welding problems.
(2)Applicability of tide temperature concrete
The composition of the aluminized zinc coating contains aluminum, and the aluminum component is prone to chemical reactions in direct contact with acidic wet concrete. Therefore, it is not very suitable for floor boards.
(3)Coating thickness and steel plate thickness restrictions
Most of the domestic aluminized zinc production units are converted from hot galvanized units, and there are certain restrictions on the thickness of aluminized zinc steel plates. The thickness of the steel plate is limited to 0.27 to 2.5. In terms of coating, it can only achieve a minimum of 30 grams per square and a maximum of 220 grams per square.
The above are the advantages and disadvantages of galvanized steel sheet by the Galvanized Steel Sheet Manufacturer, which I will introduce to you. I hope to help you.
Steel is the most common material that is immensely used in the industrial sector for variety of applications. If steel is left out in open, or if it’s used on a continuous basis then it is bound to get affected by wear and tear and especially the effect of corrosion can result in its damage. Galvanization is the process by which a protective layer of zinc is applied on the steel based surfaces to prevent the process of rusting. Thus, Galvanized steel becomes strong and safe from the effect of corrosion. The hot dip galvanizing Services in Vadodara are very famous as they help in getting the best steel with galvanized coating. In hot dip galvanization process the steel surfaces are submerged in zinc solutions and that gives a long-lasting coating with supreme results. There are both pros as well as some cons of galvanized steel that you must know before availing such facility.
There are many advantages of getting the steel galvanized and they are listed as follows-
Durability- The galvanization process of steel makes it highly durable. Thus, its strength can be increased multiple times.
Longevity – With the galvanization process the life of steel based structures can be improved to a great extent.
Rust free – The galvanization of steel helps in checking rust and the steel surfaces will not be corroded easily.
Finishing – The layer of zinc oxide and advanced chemical processing makes Galvanized steel perfect looking and the finishing appears smooth.
Protection from contamination – Galvanized steel will not get contaminated by the effect of other chemicals and harmful substances; thereby its performance level will remain intact.
Ease in inspection – If steel surfaces would be galvanized then it would become very easy to inspect them and it would eventually save a lot of time as well as efforts.
Scratch free – The steel that goes under the process of galvanization usually becomes scratch free to a great extent.
Right decision for long run – Getting the steel galvanized is a very fruitful decision for the long run because it saves a lot of cost of replacement, thereby helps in saving a lot of money.
If you are looking for hot dip galvanizing Services in Vadodara then make sure to understand that there can be some minor disadvantages while availing such services –
Cost factor – Sometimes the wrong agency may charge really high prices for providing galvanization process for steel. Stay away from such sources and choose an affordable medium.
Hot dip galvanization is not the only way – Although hot dip galvanization is one of the best methods for galvanizing steel, but sometimes it may not be feasible. In those cases, other methods such as painting, spraying, etc. may be used. It may happen when the steel structures are either too big or too small making them unsuitable for hot dip galvanization process.
Incorrect processing – Not all companies are credible for availing galvanization facilities because incorrect processing of Galvanized steel is very often seen when there is lack of expert knowledge.
Call us: +91 80008 42648 or visit: galvanizers.co.in for more information.
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