How to choose stainless steel material in shipbuilding

2024-07-25

First, the performance and application of stainless steel

Stainless steel material has the characteristics of strong corrosion resistance, high mechanical strength, light weight, etc., and is widely used in various projects. In the shipbuilding industry, stainless steel materials are often used in the manufacture of hull structures, pipes, propellers, motors and other parts. It can also be used to design structural and decorative elements such as pipes, handrails, handles, handrails, floors, drain grates, etc.

Second, the advantages and applicability of stainless steel

The advantage of stainless steel is its good corrosion resistance. In the Marine environment, the REDOX potential of water is higher than that of land, and the corrosion effect on steel is also stronger. If the ordinary steel material is used, it is easy to rust in a humid environment and lose its mechanical properties. Stainless steel materials can effectively resist the erosion of seawater, sea fog, sea salt and other corrosive substances. In addition, stainless steel materials also have good mechanical and physical properties, can withstand the Marine environment of high pressure, high temperature and other changes.

Third, the type and choice of stainless steel materials

According to the needs of different uses, stainless steel materials have a variety of different grades. When choosing stainless steel materials, it is necessary to consider the operability, cost and requirements for material properties in the manufacturing process, combined with the characteristics of different grades to choose the appropriate stainless steel materials.

Large ships began to use 06Cr17Ni12Mo2（316） austenitic stainless steel, 06Cr25Ni5Mo2 duplex stainless steel and 07Cr17Ni7AI precipitation hardening stainless steel to manufacture propellers;
Ship engine exhaust system is made of 06Cr17Ni12Mo2 austenitic stainless steel;
The turbine blades are made of 05Cr17Ni4Cu4Nb precipitation hardening stainless steel;
The non-magnetic engine is made of Cr-Ni austenitic stainless steel;
The kitchen equipment is made of 06Cr19Nil0 (304) austenitic stainless steel and 06Cr17 steel;
The hulls of transportation food, chemical tankers and refrigerated ships are made of 06Crl 8Ni9 austenitic stainless steel and 06Cr17 steel;
The LNG carrier is made of Cr-Ni austenitic stainless steel with good low temperature performance;
The minesweeper submarine is made of 022Cr2INi17Mo2N and 022Cr22Ni13Mo3N duplex stainless steel;
Made of 022Cr22Ni13Mo2N duplex stainless steel for marine shafts and heat exchangers;
The patrol boat propeller, propulsion shaft, rudder, etc. are made of 06Cr25Ni6Mo3CuN duplex stainless steel.

Stainless steel materials have important application value in shipbuilding, and can cope with the harsh conditions in the Marine environment. When using stainless steel materials, it is necessary to consider the performance of the material, choose the right grade and control costs.

Lork Group stocks Stainless steel in a range of sizes. Stainless steel Material of alloy can be supplied in random lengths, cut to order or machined to customer's specifications. We provide tailored solutions that meet specific material specifications, To buy or learn more about stainless steel contact us now, we will be in touch shortly.

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