There are lots of different options if you’re planning to use aluminium for a project. This includes dozens of alloys, a number of tempers, various forms, and a range of finishes. It’s important to think carefully about what you need. One of the most versatile options in terms of potential applications is aluminium sheet/plate 5754-H111. So, we want to have a closer look at some of the key details to remember about it. Then, if you want to order materials, you can trust Brindley Metals.
The alloy
Firstly, it’s always wise to check the specific alloy when you decide what to use. Notably, 5754 is an Al-Mg alloy with 2.6%-3.6% magnesium. This makes it a medium strength material. There are stronger alloys, including 5083, 6082, and 7075 if you need them, but at an extra cost. It also contains minor amounts of manganese (Mn) and chromium (Cr) to help refine the grain structure.
Corrosion resistance
One of the main reasons to use aluminium is it provides fantastic corrosion resistance. A number of factors make 5754 stand out in this regard. Going back to the alloy, the levels of copper and iron are carefully controlled. The Cu must be 0.10% as even a tiny amount can compromise the ability to resist corrosion in chloride environments. The Fe has a ceiling of 0.40% to ensure pitting does not become a concern.
Aluminium sheet/plate 5754-H111 and other variants have a fantastic reputation for their weldability. You can get exceptional results with TIG and MIG. Most importantly here, the heat affected zone (HAZ) from welding retains its corrosion resistance. This is critical, especially when you’re using it in corrosive environments like chemical plants and offshore facilities.
It’s important to be careful if the service temperature will be continuously between 65 and 100 degrees Celsius. Because of the magnesium in the alloy, the continuous high temperature can cause grain precipitation, reducing corrosion resistance. So, be cautious if the alloys are at the top end of the 2.6 to 3.6% Mg content.
Strength
As we said, 5754 is a medium strength aluminium alloy. Critically, it has higher strength than alloys like 5251. This makes it a great choice for flooring applications, shipbuilding, vehicle bodies, food processing, and chemical processing. However, if you are welding, you need to take care. While the material has high weldability and retains corrosion resistance, the strength diminishes in the HAZ. You can account for this by choosing higher strength filler materials.
Decorative finishes
Anodising is a great way to give aluminium sheet/plate 5754-H111 an attractive finish. In fact, you could legitimately call it a decorative alloy. Notably, it is very receptive to hard anodising, giving the material a thick oxide coating. You can even dye it to introduce different colours like blue and red.
There is an important thing to keep in mind here; 5754 is not a good choice if you want a mirror finish. It’s only fairly responsive to bright anodising, typically offering a warmer finish. If brightness is important, alternative grades like 5005 are better.
Availability
When specifying materials for different projects, it is always important to look at availability. Some materials have a longer lead time, so it can have a big impact on project time tables. One of the best things about 5754 aluminium is it’s well established in Europe. As a result, the supply chains are fantastic, including our supplies at Brindley Metals. It isn’t as readily available in other parts of the world though.
Conductivity
Generally people don’t specify aluminium sheet/plate 5754-H111 if electrical and thermal conductivity is important. In fact, because of the higher magnesium content, it is marginally less conductive than 5052. But, it is important to note the conductivity if you’re creating parts that will be in heat or electrical paths.
What about machining?
Finally, it’s important to keep in mind that there may be challenges when you machine aluminium. Softer tempers of 5754 can have problems because they may deform and tear instead of cutting cleanly. The solution is to ensure you have good tools (sharp and polished) and proceed properly with a good feed and high rake angle.
Time to order aluminium sheet/plate 5754-H111?
If you’re planning to use this fantastic alloy for projects, you can discuss everything with us. We’d be happy to work with you to go over your applications, standards and documentation, thickness, temper, and more. Ultimately, we’ll ensure you source the ideal material. Plus, we can arrange an array of different services for you while we’re at it.
So, get in touch if you want high quality aluminium sheet/plate 5754-H111.