The materials used for sheet metal processing can be broadly divided into three categories.
Steel, represented by steel plates and stainless steel plates, non-ferrous metals represented by aluminum and copper along with their alloys, and non-metals represented by synthetic resin boards and fiber materials. In the "sheet metal processing industry," steel, particularly steel plates and stainless steel plates, is frequently used, so I will elaborate on those below. Iron is the most widely used material across various applications. While it has the disadvantage of being "prone to rust" compared to stainless steel, this can be mitigated through surface treatments such as painting or plating. Its advantages include high material availability (easy to obtain) and low cost. Common types of iron used in sheet metal processing industries like ours include SPCC (cold-rolled steel sheet: commonly known as Migaki), SPHC (hot-rolled mild steel sheet: commonly known as pickled and black skin), SECC (electro-galvanized steel sheet: commonly known as Bond), and SS materials represented by SS400.
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Stainless steel is a commonly used material, second only to iron. Its applications are wide-ranging, and it is standardly used in various fields, including the food and pharmaceutical industries. The primary characteristic of stainless steel, as its name "STAINLESS STEEL" suggests, is that it is "highly resistant to rust." It also has high workability and is suitable for welding, making it a frequently used material in sheet metal processing. Typically, surface treatment processes involve polishing, such as buffing, but painting is also possible in some cases. Stainless steel can be categorized into several types, such as 304 and 430, based on the amounts of nickel and chromium it contains. SUS304, known as 18-8 stainless steel, contains more than 18% chromium and more than 8% nickel, making it highly resistant to corrosion; however, due to the presence of nickel, it is relatively expensive. On the other hand, SUS430, known as 13-chromium stainless steel, contains more than 13% chromium and is also resistant to corrosion, but its resistance is inferior compared to SUS304. However, it is more cost-effective.
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Applications/Examples of results
The types of stainless steel that we commonly use in our company include SUS304-2B material as well as hairline processed material, and SUS430-2B material/hairline processed material, among others. 2B and hairline are types of surface treatment for stainless steel; 2B is cold-rolled and has a moderate gloss, while hairline has continuous polishing lines that are long and resemble hair, created with a polishing belt of about 240 grit.
Company information
Since our establishment in 1964, we have been designing and manufacturing custom lockers, office furniture, and steel furniture for over half a century. We excel in collaborating with customers from the design stage, providing products through OEM and ODM, and creating made-to-order lockers. Our strengths lie in our extensive design know-how and processing experience, which allow us to achieve consistent production and completion in-house, thanks to our knowledge of sheet metal and our abundant facilities. Our original lockers, born from our track record, vary widely and possess unique features such as usability, durability, and design, setting them apart from catalog products of other companies. Our unique product lineup, including valuable item lockers, smart lockers, sports lockers, work lockers, and mailboxes, is a confident creation that aggregates feedback from our customers. We can provide not only standard products but also customized made-to-order items in various sizes and colors quickly and at low prices, thanks to our in-house design, sheet metal processing, painting, assembly, and production system, along with our quality assurance system. Additionally, our production management system and the manufacturing network in Higashi-Osaka enable us to realize products that include more than just sheet metal. By becoming your partner with our ISO-certified management system, we can assist you in product development and sales expansion.
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