開明伸銅 List of Products and Services

A6005C is an alloy developed in Japan, positioned between A6063 and A6061 in terms of strength. Its former name was 6N01, and it is characterized by high corrosion resistance, excellent extrudability, and superior weldability. Due to its ability to produce thin-walled and complex cross-sectional shapes, it is widely used in railway vehicles such as Shinkansen and subways. Its high extrudability allows for easy extrusion of large profiles, which can reduce the number of weld joints.

• aluminum

A3003 is one of the representative alloys in the 3000 series, made by adding manganese to pure aluminum. It retains the characteristics of pure aluminum, such as good corrosion resistance and workability, while improving strength. As a non-heat-treatable alloy, it does not undergo aging treatment. Additionally, it is rarely used as a cutting material. Its main applications include electrical machinery parts and heat exchangers. Aluminum cans are also made using alloys from the 3000 series.

• Non-ferrous metals

A1070 is made of pure aluminum material with a purity of over 99.7%. As it is a pure aluminum material, it does not have elements added like other aluminum alloys to improve strength or extrudability, resulting in lower strength and a soft (ductile) characteristic. Due to its high purity of over 99.7%, it has excellent corrosion resistance and is also superior in thermal conductivity and electrical conductivity. Therefore, A1070 is used in heat exchanger components, mechanical parts, and components related to power transmission and distribution. By the way, the last two digits "70" in A1070 indicate the purity, showing that it has a purity of 99.7%. For example, A1100 indicates a purity of over 99%, and A1050 indicates a purity of over 99.5%.

• aluminum

A6063 is an aluminum alloy that adds magnesium and silicon to aluminum, and it is the most representative extrusion alloy among the 6000 series. It is characterized by high corrosion resistance and excellent workability. Additionally, A6063 excels in extrudability, allowing for the precise extrusion of products with complex shapes. When welding is required, structural assembly using rivets or bolts is often performed. Therefore, A6063 is a highly versatile alloy, capable of extruding various shapes of products such as pipes and channels. Furthermore, due to its high extrudability, it is particularly used as a material for the interior and exterior of buildings.

• aluminum

It will be a unique alloy of Kaimei Shindou that is not in the JIS.

• Non-ferrous metals

This is an alloy developed for extruding hollow shapes. It is also used for complex shapes other than hollow ones.

• Non-ferrous metals

This is a proprietary alloy developed by Kaimei Shindou for the production of complex shapes. It is mainly used in architectural hardware and similar applications.

• Non-ferrous metals

C6782 is known as high-strength brass, which is a type of brass that includes additions of manganese, aluminum, and iron. As the name "high-strength" suggests, it has excellent strength and also exhibits good hot workability and corrosion resistance. It is used for ship propeller shafts, pump shafts, hydraulic cylinder components, and more.

• Non-ferrous metals

C4641 is also known as naval brass, which is a type of brass that has a small amount of tin (Sn) added to it. Due to the addition of tin, it has superior hardness and strength, and its resistance to seawater is higher than that of regular brass. Therefore, it is used in ship parts and other applications.

• Non-ferrous metals

C2800 is suitable for super-large shapes due to its iron content and is the best brass in terms of bendability. It is suitable for bending processes both hot and cold. The mechanical properties include tensile strength and ductility, making it suitable for applications such as wiring devices used as punched or bent, nameplates, machine parts, valve rods, condensate pipes, construction materials, welding rods, etc. *Valve rod: A rod that rotates the valve body (disk) to adjust the flow rate by turning the handle of a valve, etc. *Condensate pipe: A cooling pipe used in a condenser device that cools steam and returns it to water.

• Non-ferrous metals

It can easily forge complex shapes, and the internal structure consists of dense metal crystals. Since the forged structure is sufficiently broken down during the extrusion process, resulting in metal flow along the forged surface, its mechanical properties are exceptionally excellent, making it suitable for use in high-pressure valves, components requiring advanced mechanical properties, and rotor bars, among others.

• Non-ferrous metals

C3604 is known as free-cutting brass type 2, and its composition involves adding lead to brass to enhance its machinability, making it particularly excellent in terms of workability. Workability refers to how easily a material can be machined, and free-cutting brass is characterized by its ease of machining, as its name suggests. It can be cut with minimal force, resulting in a smooth machined surface, and the chips produced are fine and easily separable. Additionally, it has excellent properties such as weldability and plating ability. Its specific gravity is 8.5.

• Non-ferrous metals

C2700 has good ductility and cold workability, and its strength increases with processing. It also has good bendability and drawability, making it widely used for complex processed products and deep-drawn products. Its characteristics and applications include good electrical conductivity, making it suitable for electrical product components, and high thermal conductivity, which is used in heat exchangers, steam boilers, and cooler heat exchanger components in chemical plants. Additionally, due to its excellent ductility, it can be easily subjected to drawing and bending processes, and is used in everyday items such as electrical sockets, cosmetic cases, lighters, and hooks. Furthermore, it does not exhibit low-temperature brittleness, allowing it to be used even at ultra-low temperatures, and its beautiful golden color is utilized in construction materials and various utensils.

• Non-ferrous metals

Brass rods are commonly machined from round, hexagonal, or square shapes. Irregular bars can be extruded or drawn into shapes that are close to the final form at the material stage. This can shorten manufacturing time and reduce costs for our customers. In addition to C3604, we also offer our developed alloys KS-B, KS-R, and KS-H, which can achieve more complex shapes. We handle materials that are not commonly offered by other manufacturers, such as C2700, C2800, C3771, C4641, and C6782. We also provide environmentally friendly cadmium-free and lead-free materials. 1. While round bars are the mainstream for copper products, there is room to consider irregular materials as the product shape deviates from round bars. 2. By reducing the amount of machining, material waste can be minimized. 3. Processing time can be shortened by reducing the number of machining processes. 4. Machining of the outer shape may not be necessary; finishing may only involve cutting in some cases. 5. Since long-length processing is difficult with machining equipment, the longer the product length, the more cost advantages can be realized. Additionally, there is a possibility of producing parts that cannot be made by machining due to their length. Please feel free to contact our sales representatives for more information.

• Other machine elements

Manufacturing Possible Range Maximum Circumscribed Circle Hot Extruded Material φ100mm Cold Drawn Material φ60mm Unit Weight (mass per meter) 0.2kg to 25kg/m *This is just a guideline; there are also production records for items outside this range. Please contact us for details.

• Non-ferrous metals

We have general-purpose dies for aluminum extrusions. There are no costs for mold production, and it can be manufactured with only the material costs of aluminum profiles. No production time is required. *For sizes and materials not listed in the size chart, please contact us. *Feel free to contact us for prices, delivery times, and any other questions.

• aluminum

We have molds in the following common sizes made from brass rods (brass bars, center rods), and they can be produced without mold costs. - Flat bar (square bar) BSFB - Angle (L-shaped) - Channel (U-shaped) - E-type (comb-shaped) - Others Materials handled: Brass (brass) alloys - 65:35 brass (BS2) C2700BE-F C2700BD-F - Free-cutting brass (BSBM2) C3604BE-F C3604BD-F - Proprietary developed alloy KS-B - Proprietary developed alloy KS-R * Each of these also has RoHS-compliant cadmium-free materials available.

• Non-ferrous metals

We will use inspection equipment for brass and aluminum to guarantee the products after checking their appearance, cross-sectional dimensions, composition, and Vickers hardness measurement. Handling Alloys: - C2700BE C2700BD 65:35 Brass, Brass Type 2 (BS2) - C2800BE C2800BD Bending Brass, Brass Type 3 (BS3) - C3602BE C3602BE Free-Cutting Brass Type 1 (BSBM1) - C3604BE C3604BD Free-Cutting Brass Type 2 (BSBM2) - C3771BE C3771BD Forging Brass (PBBS2) - C4641BE C4641BD Naval Brass (NBSB) - C6782BE C6782BD High-Strength Brass (HBSB2) - C6802BE C6802BD Bi (Bismuth) Based Lead-Free Cadmium-Free Brass - KS-B Proprietary Alloy - KS-H Proprietary Alloy - KS-R Proprietary Alloy Aluminum: - A1070S-H112 - A3003S-H112 - A6063S-T1 - A6063S-T5 - A6063S-T6 - A6005CS-T5 (A6N01S-T5) - A6005CS-T6 (A6N01S-T6)

• Non-ferrous metals

On this homepage, we introduce "Mold Design Technology." The molds, which are fundamental to quality, are all designed and developed in-house. The molds created through the fusion of copper and aluminum technologies are built on our unique know-how. They have received high praise for a wide range of applications, including construction, electrical, mechanical, and automotive fields, and we will continue our in-house research in the future. Please take a look at our homepage. 【Features】 ■ All designed and developed in-house ■ Unique know-how ■ Highly regarded for a wide range of applications *For more details, please refer to the related links or feel free to contact us.

• Mold Design

We can accommodate a wide range of colors including white, stainless, silver, bronze, and black. Since we do not have anodizing facilities, we rely on our partner companies for anodizing. For more details, please contact us. 【Examples of Anodized Colors (Excerpt)】 ■AA6-A (B2 anodizing, sealing 6μ) ■SM-0 (matte silver) ■White (pure white, ivory) ■AA10-A (B1 anodizing, sealing 10μ) ■B1ED (glossy silver) *For more details, please refer to the related links or feel free to contact us.

• Surface treatment contract service

Extrusion processing is a hot working method in which a cylindrical mass called a billet, made of brass alloys or aluminum alloys, is heated and pressed against various shaped dies using an extruder at high pressure, producing elongated products by forcing the material through the die opening. It is capable of continuously producing hollow (hollow-shaped) or complex cross-sectional shapes, as well as shapes with strict dimensional accuracy. 【Features】 ■ It is possible to reduce manufacturing costs compared to cutting from brass round bars or brass hex bars, depending on the shape. ■ Capable of producing hollow materials (hollow materials) and complex cross-sectional shapes. ■ Capable of producing products with strict dimensional accuracy. ■ The cost of die manufacturing technology (extrusion and drawing die manufacturing costs) is low. ■ Supports small lot production.

• Extrusion Machine

On this homepage, we introduce "Product Development." Since our founding, we have been a specialized manufacturer of irregular bars, producing shapes that can only be made by our company for a wide range of applications, including construction hardware, automotive parts, measuring instrument parts, gas appliance parts, stationery and miscellaneous goods parts. If you would like to "develop original irregular bars" or want to know "how to utilize them in your company," please feel free to contact us. We invite you to visit our homepage. 【Features】 ■ Drawing can be done in shapes that can be manufactured if reference drawings are provided ■ Equipped with billet casting facilities ■ Development of special brass alloys is also possible ■ Production of irregular hollow bars is possible ■ Achieving cost reduction through reduced processing loss and shortened processing time *For more details, please refer to the related links or feel free to contact us.

• aluminum

Aluminum alloy extruded shapes We are an aluminum extrusion manufacturer located in Kameoka City, Kyoto Prefecture. We ship nationwide, primarily focusing on the Kansai region, as well as Kanto, Nagoya, Kyushu, and Tohoku. We respond to customer requests as much as possible, from large outer circumferences of cross-sectional shapes to small single weights. At our company, known for its speed of enlightenment, we can deliver new aluminum shapes within an average of 1 to 1.5 months. For existing molds, delivery can be as quick as 2 weeks. We are a JIS H 4100 certified factory. List of handled aluminum alloys and materials: A6063S-T1 A6063S-T5 A6063SS-T5 A6063S-T1 A6063SS-T1 A6005CS-T5 (A6N01S-T5) A6005CSS-T5 (A6N01SS-T5) A6005CS-T6 (A6N01S-T6) A6005CSS-T6 (A6N01SS-T6) A1070S-H112 A1070SS-H112

• Non-ferrous metals

Our company specializes in complex and unique shapes. We have also developed environmentally friendly materials that are currently in the spotlight. We are a JIS H 3250 certified factory. We have a wide range of general-purpose molds, primarily focusing on flat bars (flat rods, FB, flat bars). Brass (brass, pure brass): - 65:35 brass, Brass Type 2 (BS2) C2700BE-F C2700BD-F - Bending brass, Brass Type 3 (BS3) C2800BE-F C2800BD-F - Free-cutting brass Type 1 (BSBM1) C3602BE-F C3602BE-F - Free-cutting brass Type 2 (BSBM2) C3604BE-F C3604BD-F - Forging brass (PBBS2) C3771BE-F C3771BD-F - Naval brass (NBSB) C4641BE-F C4641BD-F - High-strength brass (HBSB2) C6782BE-F C6782BD-F - Bi (bismuth) based lead-free cadmium-free brass C6802BE-F C6802BD-F - Proprietary developed alloy KS-B - Proprietary developed alloy KS-H - Proprietary developed alloy KS-R *For details on tempering and other specifics, please inquire. Various cadmium-free materials (CDL materials) are available.

• Contract manufacturing