Things to note when purchasing stainless steel plates

Since its development over a century ago, stainless steel plates have found extensive applications across industries due to their smooth surface, excellent mechanical properties, and stable chemical structure, making them a mainstay in construction materials. However, the quality of available stainless steel plates varies significantly. So, what factors should be considered when choosing stainless steel plates?

Material
The most common stainless steel plate grades on the market include 304, 201, and 316. Among these, 316 stainless steel offers the best chemical and physical properties, while 201 is of lower quality. The price and durability of stainless steel plates vary depending on their material. Some unscrupulous sellers may attempt to substitute high-quality 316 or 304 with lower-grade 201. Therefore, it’s crucial to avoid the "low price trap" and focus on verifying the material and grade.

Specifications of Steel Plate
Plate specifications, such as length, width, and thickness, play a vital role in choosing the right plate. Different thicknesses suit various applications, so selecting the appropriate thickness ensures durability and optimal performance. Before purchasing, ensure that the specifications meet your project’s needs; if not, consider custom sizing or other suitable options.

Coloring Process
Stainless steel plates are colored using two primary processes. Water plating is inexpensive but has a lower quality finish prone to rust, peeling, and environmental impact. The vacuum plating process, though more costly, produces a durable, high-quality color that resists peeling and rust. Some vendors may use water plating to cut costs, resulting in plates that may rust or lose color over time.

Surface Quality
Inspect the plate surface for any color inconsistencies, blisters, peeling, watermarks, or scratches that might affect its appearance. While material and production quality are crucial, surface flaws can detract from the final aesthetic, especially in decorative applications.

Film Quality
Stainless steel plates are often coated with a protective film after processing to prevent scratching and maintain surface quality. Low-quality protective films can degrade over time, leaving powder or adhesive residue. When inspecting, try removing a larger area of the film to ensure its quality. It’s also advisable to remove the protective film soon after installation to maintain surface quality.

Manufacturer Selection
The manufacturer plays a critical role in product quality. Stainless steel plates from reputable brands or manufacturers with advanced production processes are generally more reliable. To avoid issues down the line, consider purchasing from well-regarded manufacturers with solid reputations.

Quality Certification
The quality certificate is the “ID” of the stainless steel plate, verifying whether it meets required standards. Always confirm that the quality certificate is authentic and valid to prevent any issues in future use.

Additional Considerations

- Order Quantity: Ensure the order quantity aligns with your project needs to avoid under- or over-ordering, which could disrupt your workflow.

- Transportation and Storage: Choose appropriate transportation methods and ensure proper reinforcement to prevent damage during handling and storage.

In summary, stainless steel plates are indispensable in modern industry. When purchasing, consider critical parameters such as material, thickness, and surface quality, as well as the manufacturer's reputation and quality certifications. By doing so, you can avoid potential quality issues and ensure the best results for your application.