In today’s society, stainless steel has become one of the indispensable materials in various application fields, especially in kitchen equipment, food processing equipment, chemical equipment, medical equipment, and other fields, stainless steel is irreplaceable. However, different application scenarios require different types of stainless steel, and among these stainless steels, 304DQ stainless steel is one of them. Compared with other stainless steel grades, 304DQ stainless steel has a series of special properties and characteristics, such as low carbon content, good machinability, corrosion resistance, high-temperature resistance, etc.
Therefore, choosing 304 DQ stainless steel can meet the needs of specific application scenarios and improve the efficiency and performance of equipment to a certain extent. In this article, we will discuss the characteristics, application, manufacturing process, and future development trend of 304DQ stainless steel, and analyze its advantages and disadvantages in different fields, in order to provide readers with a comprehensive and in-depth understanding.
What is the DQ material of stainless steel?
Its English name is Quality Drawing. Generally speaking, DQ material has better stamping performance than ordinary 304. It is suitable for larger stretched containers and the like. It is better stamped, or it can be said to be softer. This material can be used for folding plates.
Characteristics of 304 DQ stainless steel
304DQ stainless steel is a variant of 304 stainless steel, its main characteristics are as follows:
Low carbon content
The carbon content of 304DQ stainless steel is relatively low, generally below 0.03%, which makes it have good machinability and plasticity and is suitable for deep drawing, punching, bending, and other processing.
Good Strength and Toughness
304DQ stainless steel has high strength and good toughness, which makes it perform well in high-stress environments, and has excellent resistance to tensile and bending.
Good Corrosion Resistance
304DQ stainless steel has good corrosion resistance and can maintain stable performance in most acidic, alkaline, and oxidizing environments, which makes it suitable for a wide range of applications.
good high-temperature resistance
304DQ stainless steel has good high-temperature resistance and can maintain stable performance and shape under high-temperature environments.
Easy to Clean and Maintain
The surface of 304DQ stainless steel is smooth and flat, easy to clean, and can maintain a good appearance and hygienic performance. At the same time, it is relatively easy to maintain, which can reduce the maintenance and replacement costs of equipment.
304DQ is a high-end derivative product of S30400 steel grade, which is mainly designed by adding alloying element Cu and processing technology. The elongation of 304DQ material is more than 60% compared with ordinary material, with better surface quality and better deep drawing performance. For example, stamping into high-end food products such as thermos cups, kettles, kitchen sinks, pots, and utensils. The price is about 200 yuan/ton more expensive than an ordinary 2B.
| Steel Grade | Tensile Strength | Yield Strength | Elongation | Hardness | Grain Size |
|---|---|---|---|---|---|
| 304DQ | 610-700 | 240-330 | ≥60 | 160-175 | 6.5-7.5 |
In summary, 304DQ stainless steel has the characteristics of low carbon content, good machinability, high strength, good corrosion resistance, and high-temperature resistance, which makes it suitable for various application scenarios, especially where processing and bending are required.
Application of 304DQ stainless steel
Kitchen Equipment
304DQ stainless steel is suitable for a variety of kitchen equipment, such as dishwashers, ovens, refrigerators, wine coolers, etc. It has good corrosion resistance and high-temperature resistance and is easy to clean and maintain.
Food Processing Equipment
304 DQ stainless steel is widely used in food processing equipment, such as food mixers, seasoning jars, dryers, etc. Its surface is smooth and flat, easy to clean, and maintains good hygienic performance.
Chemical Equipment
304DQ stainless steel has good corrosion resistance and high-temperature resistance and is suitable for various chemical equipment, such as reactors, heat exchangers, storage tanks, etc. Its excellent performance can ensure the stable operation of equipment in high temperatures and corrosive environments.
Medical Equipment
304 DQ stainless steel is widely used in medical equipment, such as surgical instruments, medical products, medical instruments, etc. It has good corrosion resistance and high-temperature resistance and can maintain the hygiene and stable performance of the equipment.
Manufacturing Process of Stainless Steel 304DQ
The manufacturing process of 304DQ stainless steel mainly includes furnace smelting, rolling, annealing, surface treatment, and other links.
Furnace
The production of 304DQ stainless steel begins with steelmaking, generally using electric arc furnace steelmaking. In the electric arc furnace, the charge is put into the furnace, and the charge is heated and melted by the arc light generated by the electrodes, and then cast into shape by molten steel.
Rolling
After furnace smelting, 304DQ stainless steel material needs to be rolled in order to obtain the required thickness and size. Rolling can be done by hot or cold rolling, with cold rolling being more common because it improves the mechanical properties and surface finish of the material.
Annealing
The rolled 304DQ stainless steel material needs to be annealed to eliminate the internal stress of the material and improve its toughness and ductility of the material. Annealing can be performed in various ways such as hydrogen annealing or vacuum annealing, and the specific choice depends on the thickness, size, and required properties of the material.
surface Treatment
Surface treatment is to improve the surface quality and appearance of 304 DQ stainless steel material. Commonly used surface treatment methods include sandblasting, polishing, electrochemical polishing, etc. Among them, electrochemical polishing can improve the smoothness and flatness of the surface of 304DQ stainless steel, making the surface smoother and brighter.
In short, the manufacturing process of 304 DQ stainless steel includes furnace smelting, rolling, annealing, and surface treatment. The optimization and control of these processes can affect the performance and quality of 304DQ stainless steel.
In Conclusion
To sum up, 304 DQ stainless steel is a common stainless steel grade with good machinability, high strength and good corrosion resistance, and high-temperature resistance. Its manufacturing process includes furnace smelting, rolling, annealing, and surface treatment. The optimization and control of these links can affect the performance and quality of 304 DQ stainless steel.
304 DQ stainless steel is widely used in kitchens, medical equipment, aerospace, and other fields because it can meet the performance requirements of these fields for high strength, corrosion resistance, and high-temperature resistance. In future applications, it is necessary to select suitable 304DQ stainless steel materials according to specific needs and requirements and to control the manufacturing process to ensure the performance and quality of the materials.