Three main materials used in shipbuilding industry are given below.
• Stainless steel and carbon steel
• Aluminium alloys
• Composite materials
Most of the materials used in the shipbuilding industry are metallic materials. Steel materials are highly preferred in terms of price, features and availability.
Steel is used with frequently in the shipbuilding industry due to its ideal mechanical properties, structural integrity and low cost. The major downside to steel though, is the fact that it is quite heavy. There are many different types of steel used in ship construction but two of the most frequently used are high tensile steel and stainless steel.
HIGH TENSILE STEEL
High tensile steel is used when a metal that’s more heavy duty than regular steel is required. High tensile steel is stronger than regular steel. High tensile steel in ship construction is typically used in regions of the ship that are under high levels of mechanical stress, as well as the deck and bottom regions of larger tankers.
Stainless steel is ideal for shipbuilding due to its strength and durability. Most important is that it is non-corrosive meaning stainless steel doesn’t rust. As a result, stainless steel is perfect for the harsh environmental conditions that steel is subjected to like the harsh sunlight and saltwater.
Aluminum alloys possess beneficial properties that their steel counterparts don’t. Primarily, a ship built with aluminum alloys versus steel will be 60% lighter on average. Another benefit is that aluminum is resistant to corrosion and it is an inexpensive material to maintain. One disadvantage to aluminum alloys is that they are quite expensive for the initial cost, roughly 8-10 times more expensive than steel.
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