321 stainless steel plate can be cut for retail, and in today's industrial field, stainless steel materials are widely used due to their excellent corrosion resistance, strength, and aesthetic appearance. Among them, 321 stainless steel plate, as a special type of stainless steel plate, has many unique properties and applications. This article will detail the definition, characteristics, uses, and differences between 321 stainless steel plate and other stainless steel materials.
1. What is 321 stainless steel plate?
321 stainless steel plate is a kind of stainless steel plate containing titanium elements, which belongs to the austenitic type stainless steel. It is based on 304 stainless steel, by adding titanium and aluminum elements to improve its resistance to intergranular corrosion. The number of 321 stainless steel plates is derived from the titanium content in their composition.
Second, the characteristics of 321 stainless steel plate.
1.Corrosion resistance: 321 stainless steel plate has good corrosion resistance, especially in high temperature environment, its corrosion resistance is more excellent.
2.High strength: Due to the addition of titanium elements, the strength of 321 stainless steel plate has been improved, and it can withstand large pressure and bending force.
3.Aesthetic appearance: 321 stainless steel plate has a smooth surface, is not easy to adhere to dirt, is easy to clean, and has a good gloss.
4.Excellent welding performance: 321 stainless steel plate has good welding performance and can meet the requirements of various welding processes.
Third, the use of 321 stainless steel plate.
Due to its excellent corrosion resistance and strength, 321 stainless steel plate is widely used in various fields. Here are its main uses:
1.Petrochemical industry: used in the manufacture of petroleum refining equipment, chemical reactors, pipelines, etc., which can withstand highly corrosive chemicals.
2.Food processing industry: used in the manufacture of food processing equipment, kitchen utensils, etc., in line with food safety standards.
3.Construction industry: used in the manufacture of building curtain walls, roofs, guardrails, etc., with beautiful and durable characteristics.
4.Aerospace industry: used in the manufacture of aircraft parts, rocket parts, etc., with the characteristics of high strength and light weight.
Fourth, the difference with other stainless steel materials.
1.Compared with 304 stainless steel, 321 stainless steel plate contains titanium and aluminum elements, which have better intergranular corrosion resistance and high temperature strength.
2.Compared with 316 stainless steel, 321 stainless steel plate has less titanium element content, so its corrosion resistance is slightly inferior to 316 stainless steel. However, the ** of 321 stainless steel plate is relatively low, so it is more suitable for some occasions where the corrosion resistance is not particularly high.
5. Summary. 
As a special type of stainless steel plate, 321 stainless steel plate has the characteristics of excellent corrosion resistance, strength and beautiful appearance. It is widely used in petrochemical, food processing, construction and aerospace fields. Compared with other stainless steel materials, 321 stainless steel plate has advantages in terms of intergranular corrosion resistance and high-temperature strength, while at the same time being relatively low**. Understanding and using 321 stainless steel plate correctly can bring better material selection and application results to all walks of life.