What is X6CrNiCu18-9-4?

X6CrNiCu18-9-4 is a chrome-nickel-copper austenitic stainless steel with increased corrosion resistance in acidic environments. The steel is characterized by high corrosion resistance, high ductility and high strength.

What is the chemical composition of X6CrNiCu18-9-4?

The composition of X6CrNiCu18-9-4 is as follows:

Element content (%)

Carbon 0.07

Manganese 1.0

Silicon 0.5

Chrome 17.0-19.0

Nickel 8.0-10.0

Copper 3.0-4.0

What are the characteristics of X6CrNiCu18-9-4?

X6CrNiCu18-9-4 is a copper-reinforced austenitic stainless steel with the following characteristics:

Excellent corrosion resistance: X6CrNiCu18-9-4 stainless steel has high corrosion resistance, especially in the environment of chloride and nitrate, it can be used in marine engineering, chemical industry and other fields.

Excellent mechanical properties: X6CrNiCu18-9-4 stainless steel has good strength, ductility and toughness, and still maintains good performance at high temperatures. It is widely used in petroleum, chemical, pharmaceutical and other fields.

Good processing performance: X6CrNiCu18-9-4 stainless steel has very good processing performance, and can be processed by deep drawing, cold rolling, cold drawing, etc., and can also be connected by conventional welding methods.

Addition of copper: X6CrNiCu18-9-4 stainless steel contains an appropriate amount of copper element, which can enhance the corrosion resistance and strength of the material, and improve its wear resistance and heat resistance.

What are the applications of X6CrNiCu18-9-4?

X6CrNiCu18-9-4 is a stainless steel containing chromium, nickel and copper. It is classified as a precipitation hardening steel and is used in applications where strength and corrosion resistance are required. The alloy is precipitation hardened by heat treatment to achieve high strength levels. It has good weldability and can be processed into various shapes and sizes.

What are the advantages of X6CrNiCu18-9-4?

X6CrNiCu18-9-4 is a stainless steel with excellent corrosion resistance, high temperature strength and creep resistance. Widely used in chemical industry, food industry and medical equipment industry. The main advantages of X6CrNiCu18-9-4 are as follows:

1. Excellent corrosion resistance: X6CrNiCu18-9-4 has excellent corrosion resistance in various media, especially in acid and alkali environments.

2. Good high temperature strength: X6CrNiCu18-9-4 has good high temperature strength, can be used for a long time at 400-600 ℃, and has good creep resistance at high temperature.

3. Non-magnetic: X6CrNiCu18-9-4 is non-magnetic, suitable for electronic equipment that does not allow the use of magnetic materials.

What are the disadvantages of X6CrNiCu18-9-4?

X6CrNiCu18-9-4 stainless steel is a commonly used copper-reinforced austenitic stainless steel with excellent corrosion resistance and mechanical properties. However, it also has some disadvantages:

1. Poor weldability: The weldability of X6CrNiCu18-9-4 stainless steel is relatively poor, and defects such as hot cracks and pores are prone to occur. Appropriate measures need to be taken during the welding process, such as selecting suitable welding materials, controlling welding temperature and speed, etc., to improve the quality of welded joints.

2. Easy to produce thermal deformation: X6CrNiCu18-9-4 stainless steel is prone to thermal deformation at high temperature, especially when it is processed at high temperature. Therefore, appropriate measures need to be taken during high-temperature processing, such as controlling the processing temperature and speed, to reduce the influence of thermal deformation.

3. High cost: Since X6CrNiCu18-9-4 stainless steel contains a large amount of copper elements, its cost is relatively high. In some application scenarios, other stainless steel materials may need to be considered to reduce costs.

How is X6CrNiCu18-9-4 heat treated?

The heat treatment of X6CrNiCu18-9-4 stainless steel usually adopts solution annealing and quenching treatment.

Solution annealing: The main purpose of this treatment method is to eliminate the residual stress of the material and improve the machinability and toughness of the material. The solution annealing temperature is generally around 1020°C, and the holding time depends on the thickness and size of the material, usually 1-2 hours. After solution annealing, the temperature is lowered by air cooling or water quenching to achieve the ideal structure and properties.

Quenching treatment: The main purpose of this treatment is to enhance the hardness and strength of the material, and improve its wear resistance and corrosion resistance. The quenching temperature is generally about 980°C, and the holding time depends on the thickness and size of the material, usually about 30 minutes. After quenching, it is usually tempered to achieve the desired structure and properties.

What are the uses of X6CrNiCu18-9-4?

X6CrNiCu18-9-4 stainless steel has excellent corrosion resistance and good mechanical properties, so it is widely used in many industrial fields. The following are some of the main uses of X6CrNiCu18-9-4 stainless steel:

Chemical industry: X6CrNiCu18-9-4 stainless steel is widely used in the chemical industry, such as the manufacture of chlorine generators, oxidizers, reactors, storage tanks and other equipment, because of its excellent corrosion resistance and strength.

Petroleum industry: X6CrNiCu18-9-4 stainless steel is also commonly used in the petroleum industry, such as manufacturing oil storage tanks, oil pipelines, carburetors, cylinders and other equipment, because it can resist corrosion and high temperature.

Pharmaceutical industry: X6CrNiCu18-9-4 stainless steel is also widely used in the pharmaceutical industry, such as manufacturing reactors, storage equipment, etc., because it can resist corrosion and meet high purity requirements.

Marine engineering: X6CrNiCu18-9-4 stainless steel is more and more widely used in marine engineering, such as manufacturing offshore platforms, ship equipment, etc., because it can resist seawater corrosion.

Food industry: X6CrNiCu18-9-4 stainless steel can also be used in food processing equipment, such as manufacturing storage tanks, pipelines, etc., because it can resist food corrosion and meet hygienic requirements.