304 Stainless Steel Sheet and Plate Supplier

304 stainless steel plates and 304L stainless steel plates both belong to 304 series stainless steel materials, their chemical composition is basically the same, the main difference is the carbon content and heat treatment method.

304L stainless steel plates than 304 stainless steel plates low carbon, carbon content can reach up to 0.03%, which makes 304L stainless steel plate has better corrosion resistance and weldability. Due to the low carbon content, 304L stainless steel plate is not easy to form intergranular corrosion when welding, which is an undesirable phenomenon that will reduce the corrosion resistance of stainless steel plate.

In addition, 304L stainless steel plates commonly used heat treatment is heated to a higher temperature, and then rapidly cooled, called quenching. This heat treatment can eliminate the stress and grain boundary corrosion of stainless steel plate and improve its corrosion resistance and mechanical properties. In contrast, 304 stainless steel sheets usually does not require quenching treatment because of its high carbon content and can be stress relieved by natural cooling.

In short, 304L stainless steel sheets have better corrosion resistance and weldability than 304 stainless steel sheets for environments that require high corrosion resistance. 304 stainless steel sheets, on the other hand, performs well in general, with higher strength and heat resistance properties.

304 stainless steel and 316 stainless steel are both commonly used stainless steel materials, and the differences between them are mainly in the following aspects:

• Chemical Composition: 304 stainless steel’s main composition is 18% chromium and 8% nickel, while 316 stainless steel’s main composition is 16% chromium, 10% nickel, and 2% molybdenum. Therefore, 316 stainless steel has higher corrosion resistance
• Corrosion Resistance: Because 316 stainless steel contains molybdenum, its corrosion resistance is stronger than 304 stainless steel, especially in high temperature and high chloride ion environments is more stable
• Physical Properties: 316 stainless steel has a slightly higher density than 304 stainless steel and higher tensile strength and yield strength than 304 stainless steel
• Price: 316 stainless steel is also more expensive than 304 stainless steel because of its better corrosion resistance and physical properties.

304 stainless steel plates are relatively difficult to machine. Since 304 stainless steel sheet has high strength and hardness, it requires the use of high cutting forces and strong mechanical forces during processing. In addition, because of its poor heat transfer properties, it is susceptible to high temperatures during cutting and machining and requires the use of suitable coolants and tool materials to avoid excessive thermal stress and deformation on the surface of the stainless steel plate. Therefore, processing 304 stainless steel plates requires experienced technicians and professional processing equipment.

304 stainless steel sheets are widely used in many different fields due to their good corrosion resistance, strength, and toughness. Its service life depends mainly on the following factors

• Environmental Factors: The environmental conditions in which the stainless steel sheet is used can affect its life, such as moisture, acid, and alkali environments can lead to corrosion and wear, which can affect its life
• Processing and Use Method: The processing and use method of stainless steel plate will also affect its life. For example, if improper processing methods are used in the manufacturing process, such as improper cutting or welding, it may lead to stress concentrations and cracks in the material
• Material Quality: The quality of the stainless steel plate will directly affect its life. High-quality stainless steel sheets usually have better corrosion resistance and toughness, and can therefore last longer.

In general, 304 stainless steel sheets can last for decades or longer if used and maintained under the right conditions.

The following are some suggestions for extending the life of 304 stainless steel sheets

• Clean Regularly: 304 stainless steel plate needs to be cleaned regularly to remove impurities such as dirt and grease, which can reduce corrosion and wear on the surface
• Avoid Harmful Chemicals: Avoid substances that cause corrosion and wear on 304 stainless steel sheets such as chemicals containing chlorine or oxidizers
• Proper Storage: Store 304 stainless steel sheets to avoid exposure to high temperatures and humidity to prevent corrosion and oxidation
• Regular Maintenance: Regular maintenance and care, including regular inspection of the surface of 304 stainless steel plates for damage, timely repair, and replacement
• Use the Right 304 Stainless Steel Plates: Use the 304 stainless steel plate that meets your actual needs, for example, you should choose the 304 stainless steel plate with proper thickness and reliable quality to ensure its stability and durability in the process of use
• Avoid Overheating: 304 stainless steel plates can intergranular corrosion at high temperatures, so you need to control the temperature and heating time when heating and welding to avoid overheating.