What is the application range of 304 stainless steel?

304 stainless steel is one of the most widely used chromium-nickel stainless steels, as a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good heat workability such as stamping and bending, no heat treatment hardening phenomenon (operating temperature -196 800). It is corrosion-resistant in the atmosphere, and if it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion. It is suitable for the processing, storage and transportation of food.

It has good processability and weldability. Plate heat exchangers, bellows, household utensils, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, ship parts, etc. 304 stainless steel is a nationally recognized food-grade stainless steel.

Most of the requirements for use are to maintain the original appearance of the building for a long time. When determining the type of stainless steel to be used, the main considerations are the required aesthetic standards, the corrosiveness of the local atmosphere, and the cleaning regime to be adopted. Increasingly, however, other applications simply seek structural integrity or impermeability.

For example, the roofs and side walls of industrial buildings. In these applications, the cost of construction may be more important than aesthetics, and the surface may not be very clean. The use of 304 stainless steel in a dry indoor environment works quite well.

However, in the countryside and in the city, to maintain its appearance outdoors, it needs to be cleaned frequently. In heavily polluted industrial areas and coastal areas, the surface can be very dirty and even corroded.

But to achieve an aesthetic effect in an outdoor environment, nickel-containing stainless steel is required. Therefore, 304 stainless steel is widely used in curtain walls, side walls, roofs and other building purposes, but in the highly aggressive industrial or marine atmosphere, it is best to use 316 stainless steel. Stainless steel sliding doors, people have fully realized the superiority of using stainless steel in structural applications.

There are several design guidelines that include 304 and 316 stainless steels. Because"Biphasic"Stainless steel 2205 has been combined with good atmospheric corrosion resistance and high tensile and elastic strength, so it is also included in European standards. Product ShapeIn fact, stainless steel is manufactured in all standard metal shapes and sizes, and there are many special shapes.

The most commonly used products are made of sheet and strip, but also from plate to produce special products, for example, hot-rolled and extruded structural sections. There are also round, oval, square, rectangular and hexagonal welded pipes or seamless steel pipes and other forms of products, including profiles, bars, wires and castings.

304 stainless steel: one of the most widely used chromium-nickel stainless steels.

The difference between industrial stainless steel and 304 stainless steel is: 1. Different high temperature resistance: 304 stainless steel has better high temperature resistance and can withstand temperatures up to 800 degrees; After the ordinary stainless steel bears more than 450, the strength and hardness will be reduced.

2. Different corrosion resistance: 304 stainless steel mainly contains chromium and nickel, with good chemical stability and excellent corrosion resistance; Ordinary stainless steel is slightly weaker in terms of corrosion resistance. 3. Toughness is different

304 stainless steel has very good processing performance and toughness, and also has good weldability; And ordinary stainless steel will be slightly inferior. 4. Different lead content: 304 stainless steel has a low lead content and is often used in the production of food, medical and other appliances.

Ordinary stainless steel has a high content of lead, which is harmful to the human body. Hope it helps. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress.

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1. Different uses.

304 stainless steel is widely used in industrial and furniture decoration industries and food and medical industries.

316 stainless steel is mainly used in the food industry, watches and accessories, the pharmaceutical industry and surgical instruments.

2. The characteristics are different.

304 stainless steel is non-magnetic stainless steel that cannot be changed by heat treatment.

316 is also used as "marine steel" because it has better resistance to chloride corrosion than 304.

3. The performance is different.

As a widely used steel, 304 has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good heat workability such as stamping and bending, no heat treatment hardening phenomenon (operating temperature -196 800).

316 stainless steel (06Cr17Ni12Mo2) has good oxidation resistance, and can be used intermittently below 871°C (1600°F) and continuously above 927°C (1700°F).

There are many products in our lives that are made of stainless steel, such as windows, cups, basins, etc., which are almost the same on the outside, but they are actually divided into many types, among which 304 stainless steel is more familiar to everyone. So what is 304 stainless steel? What are the materials of stainless steel?

It is the more common type and is also known as 18-8 stainless steel. It can withstand high temperatures of 800 degrees Celsius, has a density of grams per cubic centimeter, has super toughness, and has very strong processing performance, and is widely used in furniture decoration, industry and food and medical treatment.

What materials are made of stainless steel.

1. Martensitic stainless steel.

It is commonly known as 420 stainless steel, which is very affordable, very hard, very firm and practical, and can resist corrosion, and is widely used in ordinary working environments.

2. Ferritic stainless steel.

It is also known as 430 stainless steel, which is not easy to be oxidized and corroded, but the manufacturability and mechanical properties will be slightly worse, and it is generally used in structures with small load-bearing and stress.

3. Austenitic stainless steel.

This is the 304 described above, which is the most common and widely used type, which has very good mechanical properties and can be machined and welded.

4. Duplex stainless steel.

This type combines the characteristics of 304 and 430, with very high toughness and moldability, no room temperature brittleness, corrosion resistance, and mechanical welding.

What are the uses of stainless steel.

It can be made into beautiful kitchenware, such as pots and pans that we commonly use, etc., which is very environmentally friendly and healthy. Many electrical appliances in our lives also contain stainless steel, which is more wear-resistant, and not easy to be corroded, beautiful and generous. In addition, stainless steel can be used in medical applications, such as scalpels.

Stainless steel includes: 304 stainless steel plate, 304 stainless steel pipe, 304 stainless steel rod, 304 food grade stainless steel pipe, sanitary stainless steel pipe, precision stainless steel pipe, polished stainless steel, mirror stainless steel, brushed stainless steel, stainless steel bowl, stainless steel umbrella, martensitic steel, ferritic steel, austenitic steel, austenitic-ferritic (duplex) stainless steel and precipitation hardening stainless steel.

In addition, it can be divided into chromium stainless steel, chromium-nickel stainless steel and chromium-manganese-nitrogen stainless steel according to the composition. There is also a special stainless steel for pressure vessels "GB24511 2009 Stainless steel plate and steel strip for pressure equipment".

304 stainless steel is a common material in stainless steel, with a density of 18 8 stainless steel in the industry. High temperature resistance 800, with good processing performance, high toughness characteristics, widely used in industry, furniture decoration industry and food and medical industry.

In our daily life, there are products made of stainless steel everywhere, such as the thermos cup we drink, and you will see the logo of 304 stainless steel at the bottom, so what kind of material is 304 stainless steel? How to identify the authenticity of 304 stainless steel?

1. What is 304 stainless steel.

Stainless steel is a relatively wide range of materials, it has the characteristics of high temperature resistance, even if the temperature reaches 1200 degrees Celsius, there is no need to worry, at the same time, its corrosion resistance is also very good, can be widely processed, with weldability, so it is widely used in the food industry and chemical industry.

The name of stainless steel originated in the United States and Japan, and it is customary to distinguish the element content as a name in China, for example, the chromium element of this 304 stainless steel can reach 19% 20%, and the content of nickel element reaches about 10%.

2. How to identify 304 stainless steel.

1. If you have a magnet on hand, you can identify stainless steel through the magnet. Because its magnetic properties are relatively small, it cannot be adsorbed with magnets. If the magnetism is too large, it means that it does not belong to 304 stainless steel, but may be 202 material.

2. At the same time, we can also use special potions, because it is not easy to change color within a few minutes after dropping into the potion. But like 201 stainless steel, it will change color immediately after being dropped into the potion and will turn red. There is also 301 stainless steel that can turn brick red in about two minutes after being tested by dropping into the potion.

3. There is also a professional testing method to judge whether it is 304 steel by the surface and smoothness.

3. What products can 304 stainless steel be made of?

304 stainless steel has corrosion resistance and is widely used in life, such as our kitchen utensils, stainless steel woks, and tableware, etc., are made of 304 stainless steel.

And because it has reached the food level, the thermos cup used is also made of 304 material.

The above content is about what 304 stainless steel is, and what is the way to identify whether it is real 304 stainless steel, and what products are available in our daily life.