Guangdong Yaolong Metal Technology Co., Ltd.
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One of the often misunderstood assumptions in the outdoor lighting industry and many other fields is that steel and aluminum are interchangeable, and both materials can be used for any purpose in any situation.
The fact is that each material has advantages and disadvantages in a particular application and should be used under the right conditions. The two most widely used high-strength aluminum alloys in the lighting industry are the 6061 and 6063 ，which heat treated toT6temper. These two materials have a high strength to weight ratio and can be used to make decorative light pole，flagpoleand common brackets. Another advantage of aluminum is its excellent corrosion resistance and high recovery, which is very important for the use of this material in harsh environments and is a key factor in sustainable projects.
On the other hand, steel is a higher strength material thatwhen we are looking for strength and stiffness on a project or product. A good example is when the project is located in a windy area and needs to withstand large and heavy loads. Steel is typically used when a lighting pole is loaded with many flags, large banners, countless light fixtures…or when a client is looking to the manufacturer for the fabrication of very long or very narrow brackets with important loads at its end like a long traffic arm with a large street sign. An important factor to keep in mind when selecting steel is to properly choose the surface finish: paint, galvanized, internal paint or primer.
Aluminum and steel costs
Cost and price are always important factors to consider when manufacturing any product. Prices for steel and aluminum continue to fluctuate based on global supply and demand, fuel costs, and the price and availability of iron and bauxite. However, steel is usually cheaper (per pound) than aluminum (for more information on steel, see Galvanized and Stainless Steel). The cost of raw materials directly affects the price of the final spinning. There are exceptions, but twice the same spinning (one in aluminum and one in steel), aluminum are almost always more expensive due to rising raw material prices.
Strength and ductility of steel and aluminum
Aluminum is an ideal metal because aluminum is more ductile and elastic than steel. Aluminum can form shapes instead of steel, often forming deeper or more complex spinning. Especially for parts with deep and straight walls, aluminum is the material of choice. Steel is a very tough and resilient metal, but it is usually not pushed to the same extreme dimensional limits as aluminum during rotation without cracking or cracking.
Corrosion resistance of steel and aluminum
Although ductility is very important for outdoor lighting and light pole, the greatest characteristic of aluminum is that it can resist corrosion after oxidation without any further treatment. Aluminum does not rust. But,for aluminum, no paint or coating treatment will wear or scratch its surface. Steel or “carbon steel”in the metal world (as opposed to stainless steel) usually needs to be painted or treated after sanding to prevent rust and corrosion, especially if the steel parts are in a damp, wet or abrasive environment. jobs.
So the next time if you're looking for materials for poles and brackets, make sure you know your needs and the environment in which they will be used.