Why Is 5086 Aluminum Sheet Not Used for Warships?
The weight of aluminum alloy boats is obviously much lighter than that of steel, and this will reduce fuel consumption and speed up a lot, but why are the warships seen not made of aluminum alloy? As one of the big 5086 aluminum plate suppliers, Haomei Aluminum solves your doubts.
There are also warships made of marine aluminum alloys. And they have very little draft, so they can reach a fast sailing speed. After the draft is reduced, the ports that can be called are also more selective, so there is no need to worry about finding a suitable port when replenishing, but the problem with the aluminum alloy hull is also obvious. The aluminum alloy superstructure of the Falklands Sea Battle Sheffield was hit, causing severe burns, and important places could not be protected as effectively as steel ships. This is one of the problems.
Then there is the problem of waterproofing. The aluminum alloy boats are usually coated with anti-rust coatings. It will be more convenient to maintain the small boats and the cost will be relatively less. However, if the large boats are maintained in this way, it will be a waste of time and will affect the overall hull.
Generally speaking, marine aluminum plates are more suitable for the construction of small boats, and large boats still need to use special materials. The aluminum alloy metals used in ships are mainly 5083, 5086, 5052,6061, 6082,etc.
Compared with traditional carbon steel, they have a large gap in physical properties such as density, melting point, thermal conductivity, yield stress, volume shrinkage during solidification, elongation, and tensile strength. In the material selection process of aluminum alloys, the key factors to be considered are the structural load and corrosion environment of the ship.
Considering the practical application of aluminum alloy speedboats, in terms of overall layout, a single-layer deckhouse is usually designed above the main deck to improve the stability and safety of aluminum alloy ships, reduce the projected area of superstructures, and enhance the ship’s ability to withstand wind and waves. The main body adopts the longitudinal frame mode, the hull and deck are made of 5083 and 5086 aluminum alloy and the profiles are made of 6082 aluminum alloy.
The characteristics of easy oxidation, low melting point, and large linear expansion coefficient of aluminum alloy ships increase the difficulty of welding during ship construction. At present, the commonly used welding techniques mainly include TIG welding, MIG welding, etc. It includes automatic, semi-automatic and manual welding modes, and uses the advantages of various welding modes to complement each other in practical applications. Welcome to leave message below to inquire 5086 aluminum sheet prices.
Original Source:https://www.marinealu.com/a/why-is-5086-aluminum-sheet-not-used-for-warships.html
Tags: 5086 aluminum sheet ,