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material for boat

Yacht Classification

By origin

Italy, Croatia: The design reflects the romantic style, luxury and elegance represent the trend of modern yachts.

United States: reflect personal taste, pay attention to self-personal design.

Britain: British yachts have a strong classic aristocratic atmosphere.

Yacht

Taiwan: Taiwan ’s yachts are more casual and more suitable for most Chinese people. 70% of Hong Kong ’s yachts produce in Taiwan, and Taiwan ’s brands are in good sales in the United States.

Others are from France. Due to the relatively small number in China and Hong Kong, the popularity is not very high. In addition, domestic yacht manufacturers are mostly production bases of some foreign-funded enterprises in China, and they are basically not on a certain scale, and have not yet formed a brand, but from a long-term perspective, domestic yacht manufacturers will inevitably form their own brands .

By function

It usually purchase by individuals, enterprises, governments and associations, including leisure boats, business social boats, rowing boats, fishing boats, private boats, public security patrol boats, and harbor surveillance boats. Strictly speaking, the latter three are contrary to the nature of yachts, but they are the same as yachts in terms of construction scale and technology. Some people also classify them as yachts.

Leisure yachts, most of which purchase by families and use as family vacations. Generally, it is mainly about 30 feet to 45 feet yacht, and the convenience of family use is also considered in the design. The decoration also focuses on the family atmosphere as the selling point. The types of yachts on the market are also based on this type.

Commercial yachts generally large-sized yachts with luxurious interiors, which can also say to be luxury yachts. They generally use by large corporate conglomerates and executives. They mostly use for business meetings, company parties, and small PARTY.

By use

Generally, it operates and works in important places such as the sea and inland rivers, and nearby docks. There are generally fire boats, salvage boats, fishing boats, fishing boats, work boats, crew boats, adventure boats, rope boats, search and rescue boats, etc. Speaking of it, it the yacht require by professionals working on water or government function personnel. These uses are classified into three categories:

Industrial application boats: generally used in the marine industry, transportation of materials at docks, various supplies and supplies, and special backup for large ocean-going ships.

Water safety management boat: protect the rivers and oceans and fire protection, garbage care, river channel cleaning, etc. around the water, so that the water transportation is convenient and the environment becomes more green. There is also the security inspection of passing boats, Patrol to ensure better security for people’s property.

Special operation boat: Provide assistance for research, scientific research, exploration, production and special fields, and improve the complex environment and severe situation.

The above structure complicate, the craft is fine, the function is comprehensive, the practicability is strong, the speed must be specific under certain circumstances, most of the buyers are government, scientific research, navigation, enterprises, archaeology and so on. In short, it provides a basic guarantee for economic development.

By power type

There are no power boats, sail boats, motor boats. Sail boats divide into unassisted powered sail boats and auxiliary powered sail boats. Motorboats divide into outboard motorboats and onboard motorboats. The built-in motor boat can also divide into two grades: small motor boat and luxury boat.

By material

Since yacht consumers usually have higher requirements for product performance, the requirements for yacht construction materials are also relatively high. In addition to being beautiful and comfortable, yacht construction materials also need to have good mechanical and safety properties.

Tagged With: material for boat, steel boat, superyacht, yacht

About The Steel for Boat

steel for boat

The boats make a huge impact in our world, not just transport goods, also people can use it to pass the river, ocean and more. It makes our world have more and more possible. But what is steel for boats? Maybe many people do not know about it. There are two types of steel for boats. They are high-quality carbon steel and low alloy steel. About the high-quality carbon steel, you may be heard about 1045 steel, 1050 steel and more. But about the low alloy steel, it is bigger than carbon steel in the parts of steel. There are a lot of types for it. Such as the 4140 steel, 4130 steel and etc. The steel for the boat which is used to make the hull structure for sea and riverboats. High strength, toughness, welding and great low-temperature and corrosion resistance are the most important point for hull steel.

Steel Types for Boat

Commonly used hull structural steel includes general strength steel (A, B, D, E) steel plates specified in GB712, high strength steel (AH32, DH32, EH32, AH36, DH36, EH36) steel plates; high-quality carbon for ships specified in GB5312 Plain steel (CIO, C20) steel pipes; Class A and B steel ball flat steel for shipbuilding as specified in GB9945.

Grade

General strength hull structural steel is divided into 4 grades: A, B, D, E. The yield strength (bigger than 235N / mm ^ 2) and tensile strength (400 ~ 520N / mm ^ 2) of these 4 grades are the same. But the ballistic work is different at different temperatures.

According to the min yield strength to make the high-strength hull structural steel divided into different levels. And every level also has A, D, E, F four-level according to different impact toughness. A, D, E, and F respectively represent the impact toughness that can be achieved under the conditions of 0 °, -20 °, -40 °, and -60 °, respectively.

The yield strength of A32, D32, E32, F32 is bigger than 315N / mm ^ 2, and the tensile strength is 440 ~ 570N / mm ^ 2.

The yield strength of A36, D36, E36, F36 is not less than 355N / mm ^ 2, and the tensile strength is 490 ~ 620N / mm ^ 2.

The yield strength of A40, D40, E40, and F40 is higher than 390 N / mm ^ 2, and the tensile strength is 510 to 660 N / mm ^ 2.

Characteristic

Due to the badness working environment of the boat, the hull of the boat is subject to chemical corrosion, electrochemical corrosion of seawater, and corrosion of marine organisms and microorganisms. The hull must absorb large wind and wave impacts and alternating loads. And the shape of the boat makes its processing method complicated. Therefore, strict requirements are imposed on the steel used for the hull structure.

First, good toughness is the most critical requirement. In addition, higher strength, good corrosion resistance, welding performance, processability and surface quality are required. In order to maintain quality and ensure sufficient toughness, the Mn / C of the chemical composition is required to be above 2.5, and the carbon equivalent is also strictly required, and it is produced by a steel mill approved by the ship inspection department.

The structural grades of hull structural steel according to its minimum yield point are general strength structural steel and high strength structural steel. Structural steel for hulls is divided into general strength and high strength steel. General strength steel is divided into four grades A, B, D and E according to quality.

The general strength structural steels of CCS specifications are divided into: A, B, C, D four quality grades (ie CCSA, CCSB, CCSC, CCSD), and the high-strength structural steels of CCS specifications are three Intensity level, four quality levels.

In general, using steel as material to make the boat is a good move. But the disadvantage also with it. When you wanna buy one for you, you need to think about it more carefully.

 

Tagged With: material for boat, steel boat, steel for boat

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