The difference between stainless steel 201 and 304

Stainless steel plates are commonly classified into two types, namely 201 and 304. These two types differ in composition, which makes them unique and suitable for different applications. If you need to use stainless steel plates, it is important to understand these differences so that you can select the best type for your unique needs and requirements. Don't gamble on guesswork; seek professional advice to guide you accordingly.

 

When it comes to stainless steel plates, 304 is definitely a higher quality option, but it comes with a higher price tag. Imported from overseas, 304 stainless steel is known for its durability and resistance to corrosion. In contrast, 201 stainless steel is a domestic option that is considered lower quality with a lower price point. While it may be more affordable, 201 stainless steel is not as strong or long-lasting as 304 stainless steel.

 

Nickel steel 201 is a substitute for 301 steel and is utilized in railway vehicles due to its magnetic properties. When it undergoes cold working, it acquires magnetic characteristics, making it an excellent choice for this application.

 

With its widespread use in various industries, including food production equipment, general chemical equipment and nuclear energy, 304 stainless steel has become a go-to material for its corrosion resistance and heat-resistant properties. Its composition makes it an ideal choice for applications where high temperatures and harsh conditions are common, ensuring durability and reliability in even the most demanding environments. Whether you're working with food-grade equipment or nuclear power plants, 304 stainless steel is widely recognized for its exceptional performance and versatility.

 

The main difference between stainless steel grades 201 and 304 lies in their composition. 201 has a higher manganese content, which gives it a bright surface that can easily become dark and rusty. In contrast, 304 contains more chromium, resulting in a matte surface that is highly resistant to corrosion and does not rust easily. The disparity in their corrosion resistance is a significant factor that distinguishes the two grades. Due to its poor corrosion resistance, 201 is usually priced lower than 304. This is because 201 contains less nickel than 304, which affects its corrosion resistance negatively. Overall, it is vital to consider the composition of the stainless steel grade when making a purchase and choosing the one that matches your desired properties.

 

The disparity between 201 and 304 is primarily due to nickel content. At present, 304 is relatively pricey, usually valued at around 50,000 tons. However, using 304 guarantees that rust formation during its use is minimal or will not occur at all. You can verify this using various chemicals.

 

 
A great feature of stainless steel is its resistance to rust, as the steel body is protected by a chromium-rich oxide layer formed on its surface. With material 201, it is a high manganese stainless steel that is much harder than 304. This type of steel material has high carbon and low nickel content, making it more durable and long-lasting.

 

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