辰己屋金属 List of Products and Services

CCA is a new type of copper-aluminum clad material that uses isothermal processing technology (patented internationally) to achieve a metallurgical bond of copper to an aluminum core. While maintaining the excellent properties of copper, such as conductivity, it also combines the advantages of aluminum, which are lightweight and low-cost. Unlike clad materials made of bonded dissimilar metals, CCA features a shape where copper completely covers the aluminum. It boasts excellent electrical conductivity, thermal conductivity, heat dissipation, solderability, and plating properties, along with high ductility and ease of processing. It is metallurgically bonded through a controlled high-temperature isothermal process, which also prevents oxidation. In addition to drilling and bending, it can be adapted for processing operations such as deep drawing, twisting, and cutting.

• others
• Manufacturing Technology
• Other Hydrogen/Fuel Cells

Tatsumiya Metal has two faces: "a non-ferrous materials wholesaler with over 80 years of history" and "a cutting processing manufacturer with over 30 years of experience," leveraging each function to enable cost advantages and stable supply. Equipped with 46 NC composite lathes, roundness measuring instruments, and shape measuring machines, we have established a system that can respond to high standards of quality. We have numerous mass production achievements for major domestic pneumatic valve manufacturers and hydraulic equipment manufacturers, which has earned us a high level of trust. Additionally, we have processing achievements with lead-free brass materials compliant with RoHS 2 (Eco Brass from Mitsubishi Materials Corporation and BZ-5 from San-Etsu Metal Co., Ltd.), enabling a consistent response from procurement to processing. *If you find yourself in a situation where "processing is possible, but materials are unavailable," please contact Tatsumiya Metal!

• others

Copper materials are widely used in semiconductors, automobiles, and electrical components, and in recent years, the demand has further increased due to the acceleration of electrification (EV). Many users feel uncertain about the supply, so we have developed a manufacturing method to ensure a more stable supply of Mitsui Sumitomo Metal Mining's original phosphorus-containing copper. <Features> ■ Equivalent to Tough Pitch Copper C1100 - Alternative Product This is an original alloy that meets JIS C1100 standards, produced by Mitsui Sumitomo Metal Mining. It is phosphorus-containing deoxidized copper that removes oxygen from copper using trace amounts of Fe and P. Its mechanical properties and specifications are in line with C1100, and its conductivity and solderability are also equivalent to C1100. The scrap evaluation is the same as C1100. ■ Supply System Since it can be manufactured within Mitsui Sumitomo Metal Mining's facilities, we can flexibly respond to material shortages and increased demand, ensuring stability in our supply system. ■ Prototype Support If you want to try something but don't have the material... This is a common issue with new materials and alloys, but at Tatsumiya Metal, we have a wide range of samples available in various thicknesses for prototyping, testing, and consideration for introduction at any time. If you have concerns about the future of copper material procurement, please feel free to contact us!

• Steel

Are you having trouble finding a place to put your mask when you take it off during meals? In such cases, we introduce a convenient mask case that allows you to store and carry your mask securely. Now that masks have become essential, let's protect ourselves from harmful viruses and bacteria by using the copper-based mask case "MASK REST." Additionally, by suppressing the growth of bacteria, it also helps reduce unpleasant odors that linger on the mask. <Excellent Antibacterial and Sterilizing Effects> Metals such as copper and brass containing copper have been recognized for their antiviral effects against O157, norovirus, influenza, and antibacterial properties against harmful bacteria like Legionella. Furthermore, in 2008, the U.S. Environmental Protection Agency legally approved a label stating that it "sterilizes pathogenic microorganisms harmful to humans and is effective for public health" (according to the U.S. Environmental Protection Agency's standards, sterilization refers to reducing bacteria to nearly zero within two hours). In recent years, there are also high expectations for its effectiveness against the rampant novel coronavirus.

• others
• Hardware Doors, Handles and Locks

Tatsumiya Metal's pipe bending processing can be done without molds if everything goes well, by utilizing existing molds owned by our company and partner factories. With Tatsumiya Metal's materials trading division, we have reliable knowledge of materials and stable procurement and supply. This is often adopted in situations where custom parts are needed, such as for repairing existing equipment piping, or in cases where you want to try out prototypes and development! For more details, please contact us or download and view our catalog.

• Piping and insulation

Tatsumiya Metal's metal material sales can provide high-quality, short-term supply of non-ferrous metal materials and plated materials thanks to our extensive in-house inventory and slitting equipment. Typically, the delivery time for standard material supply is about 1 to 10 days for coil materials, but at Tatsumiya Metal, we maintain inventory and perform in-house processing, allowing for same-day shipping and next-day delivery at the earliest. (Note: standard delivery time is 4 to 5 days.) The minimum lot size for coil materials is usually 2 kg/mm. For prototypes, we can provide materials in units of a few centimeters, and we respond to shipping needs based on application and urgency. We also quickly respond to requests for prototype materials in sheet form. This reduces inventory risk, allowing for the supply of only the necessary amount of materials when needed. 【Features】 - Stock of various copper alloy materials and plated materials available - Supported by in-house and external slitting equipment - Through our supply network, we can also provide and propose prototype materials in coil and standard sheet forms beyond our in-house inventory. - A supply system established through a network with domestic and international copper alloy manufacturers Additionally, we can accommodate both prototyping and mass production of thick copper materials for busbars, which have seen increasing demand in recent years. *For more details, please download our catalog or contact us.*

• Steel

Regulations and restrictions on the use of "lead," as represented by RoHS2 and various environmental laws and industry associations, are gradually becoming a reality. At Tatsumiya Metal, we can make accurate proposals based on our extensive sales achievements in lead-free brass alloys, silicon-based alloys represented by Eco Brass, and bismuth-based alloys, as well as our considerable experience in our own machining department. <Current Status of Lead-Free Brass Response> - For free-cutting brass, which has about 4% lead added to improve machinability, exclusion regulations are currently applied, and a grace period has been established. - Unless Europe provides accurate proposals for alternative materials, the exclusion regulations will also be abolished. - From July 21, 2021, conventional lead-containing brass will no longer be usable in products for industries and major companies subject to RoHS and various environmental regulations. <Current Response Status> - Each manufacturer is developing lead-free brass, and application tests are being conducted by various users and industry associations. - Features of lead-free products: - Bismuth-based: Alloys with bismuth added instead of lead. - Silicon-based: Alloys with silicon added instead of lead. - Low-lead brass: Brass with reduced lead content. *For more details, please refer to the PDF materials or feel free to contact us.

• Steel
• Water and sewerage pipe fittings
• Gas equipment

At Jinki Metal, we can make accurate proposals based on our numerous sales achievements in the material sales division for lead-free brass alloys, silicon-based alloys represented by Eco Brass, and bismuth-based alloys, as well as our extensive experience and accomplishments in our own machining division. <Current Status Regarding Lead-Free Brass> - A free-cutting brass that has about 4% lead added for improved machinability is currently subject to exclusion regulations, which are in a grace period. - Within the next 2 to 3 years, conventional leaded brass may become unusable for products in industries and major companies that apply RoHS and various environmental regulations. <Current Response Status> - Various manufacturers are developing lead-free brass, and application tests are being conducted by respective users and industry organizations. - Features of lead-free products: - Bismuth-based: Alloys that add bismuth instead of lead. - Silicon-based: Alloys that add silicon instead of lead. - Low-lead brass: Brass with reduced lead content. *For more details, please refer to the PDF materials or feel free to contact us.

• Steel
• Water and sewerage pipe fittings
• Gas equipment

Amidst the restrictions on the use of "lead" in various environmental laws and regulations, free-cutting brass that contains about 4% lead for improved machinability is currently exempted due to the lack of effective alternatives. However, prompt action is essential towards the eventual lifting of these exemptions in the coming years. Additionally, since some users establish their own environmental standards, it is also necessary to be prepared to respond at any time. At Tatsumiya Metal, we can provide accurate proposals based on our extensive sales record in the materials sector, including lead-free brass alloys like Eco Brass, as well as our considerable experience and achievements in our machining department. - We are originally a materials trading company, so we have a robust materials procurement network. - We possess know-how derived from our sales record as materials. - Plus, we have machining achievements in our machining department! - We have a cooperative system with material manufacturers. - Options for silicon-based and bismuth-based lead-free copper alloys, as well as low-lead materials, are available (there are systems that add silicon instead of lead and those that add bismuth). We have established a quality system that can meet high technical demands with 45 NC automatic lathe combination machines and high-precision measuring instruments such as roundness measuring devices and surface roughness profile measuring instruments. *For more details, please download the catalog or contact us.

• Secondary steel products

Tatsumiya Metal's metal material sales offer high-quality and short delivery times for non-ferrous metal materials and plating materials, thanks to our extensive in-house inventory and slitting equipment, as well as the ability to provide long-term stable supply. Typically, material supply takes about one week to ten days, but at Tatsumiya Metal, we hold inventory and perform in-house processing, allowing for shipments on the same day as the order and delivery the following day at the earliest. (Note: Normal delivery time is 4 to 5 days.) We also accommodate minimum lot sizes starting from 2 kg/mm, allowing for shipments tailored to the application and urgency. This reduces inventory risk, enabling supply of only the necessary materials when needed. Additionally, our strong cooperative relationship with manufacturers ensures stable supply. We consider various aspects such as usage frequency, purchase units, inventory burden on our side, and delivery pace together with our customers, aiming for stable supply in all scenarios. 【Features】 - Stock of various copper alloy materials and plating materials - Integrated supply system with three in-house slitters and partner factories - High-quality materials provided through years of slitting technology - Stable supply achieved through strong ties with manufacturers *For more details, please download the catalog or contact us.

• Steel

Our company, which specializes in pipe bending and the sale of special alloys, is currently offering a collection of materials to help solve your metal processing concerns. We provide useful information ranging from answers to questions like "There are various types of welding, but how do they differ?" and "What exactly is pipe bending?" to a list of availability by type and shape for issues such as "I can't procure the material with the alloy number specified in the drawing." 【Series List】 ■ "What is Pipe Processing?" ■ "Material Selection Guide: Aluminum Availability List" ■ "Material Selection Guide: Pipe Edition" ■ "Material Selection Guide: Copper Alloy Availability List" ■ "Material Selection Guide: Machining Edition" ■ "Weldability Guide" *You can download the materials as PDF data from "Download Catalog" or feel free to contact us.

• Heat exchanger
• Piping and electrical wiring materials
• Steel

Have you ever had an experience like this? ○ Unfamiliar drawings... Cutting? Pressing? It looks like a spring... It's pipe bending! But how do you do it? ○ I don't really understand the drawings for pipe bending, the design of piping components, the design of heat exchangers, or the selection of pipe materials and sizes. ○ Welding sounds easy to hear, but when it comes to actually giving instructions, I don't know how to do it... Tatsumiya Metal, which has been handling pipe bending and piping component processing for many years and originally started as a materials trading company, understands the characteristics and key points of processing technology. We will introduce materials that compile technical know-how! For more details, please download the catalog.

• Heat exchanger
• Piping and insulation
• Special Construction Method

While selling metal materials, Tatsumiya Metal, which has been involved in metal cutting processing for many years, understands the concerns during material selection. The "Material Selection Guide (Cutting Processing Edition)" is a one-page table that provides a clear overview for selecting cutting materials. Please add this to your technical documents. This will be helpful in situations like: ○ For machinability, brass is preferred... but for cost, stainless steel is better... which one to choose? ○ A request for cost reduction from the end user! We need to reconsider the material... ○ We haven't noticed it for years, but are there actually other suitable materials? *For more details, please download the document. If you have any questions, feel free to contact us!

• Secondary steel products
• Fittings
• Steel

Tatsumiya Metal, which has been handling welding and brazing along with pipe processing for many years, understands the questions surrounding welding. "Pipe Processing Technical Materials: Welding Edition" is a reference book on welding. Have you ever had experiences like these? - You often hear about welding and thought it was a simple matter, but there are various methods, and you don't know which method to instruct. - You are unsure if the material you have on hand is suitable for welding. - What is the difference between welding and brazing in the first place? To address these questions, we have prepared materials that focus on two basic points for explanation.

• Renovation and repair methods
• Piping Equipment
• Piping materials (copper pipes, cast iron pipes)

"Unfamiliar drawings... Cutting? Pressing? It looks like a spring... It's pipe bending! But how do you do it?" Have you ever had such an experience? We have prepared basic technical materials on the theme of "What is pipe bending?" For more details, please download the catalog.

• Heat exchanger
• Piping and insulation
• Special Construction Method

Amidst the restrictions on the use of "lead" in various environmental laws and regulations, free-cutting brass that contains about 4% lead for improved machinability is currently exempted due to the lack of effective alternatives. However, in light of the potential removal of this exemption in the near future, it is essential for automobile and electronics manufacturers, as well as parts processing companies supplying components, to respond promptly. Additionally, since some users establish their own environmental standards, it is also necessary to be prepared to respond at any time. At Tatsumiya Metal, we can make accurate proposals based on our extensive sales record in lead-free brass alloys, particularly "Eco Brass," and our considerable experience and achievements in our own machining division. ● As a material trading company, we have a robust material procurement network. ● Expertise derived from sales experience with materials. + Processing achievements in the machining division! ● Collaborative system with material manufacturers. ● Options available for silicon-based and bismuth-based lead-free copper alloys, as well as low-lead materials. (There are different systems from manufacturers that add silicon and bismuth as substitutes for lead.)

• Steel
• Water and sewerage pipe fittings
• Gas equipment

"Ecobras" is a lead-free copper alloy that does not use lead. It is a groundbreaking high-performance material that serves as an alternative to conventional lead-containing free-cutting brass, while simultaneously solving issues related to stress corrosion cracking and dezincification. ● Excellent machinability In conventional free-cutting brass (C3604), lead within the metal structure improves machinability. In Ecobras, the addition of silicon forms κ and γ layers, which helps to fragment chips and enhance machinability. ● High strength comparable to stainless steel The tensile strength of Ecobras is 600 N/mm². It is a high-strength material comparable to stainless steel SUS304, with 1.4 times the strength of conventional brass materials. This allows for cost reduction through thinner and more compact products. ● Solves dezincification corrosion issues Ecobras has a low zinc content in the alloy, and the absence of electrochemically noble β phase in the matrix prevents dezincification corrosion. ● Solves stress corrosion cracking issues The reduction of zinc content, along with the addition of silicon, effectively addresses the problem of stress corrosion cracking. ● Excellent hot forgeability (equivalent to forging brass C3771) ● Superior solder wetting, brazing, and plating properties.

• Steel
• Fittings
• Water and sewerage pipe fittings

Have you ever had such experiences? - You created a new drawing, but you're worried if this material actually exists in the world... - It's a drawing for a shape processed from a rod, yet a plate alloy number is specified... - You can't procure the material with the specified alloy number in the drawing. It is indeed listed in the JIS standards, but... Chemical compositions and mechanical properties are easily accessible. Typically, designers specify the best material in the drawing from among these. However, the actual availability of that material when doing the job tends to be overlooked. This is understandable since there are no such references or literature available. Therefore, I hope you can use this "Availability List" as a reference to assist you in your work.

• Steel

Have you ever had such an experience? ○ You created a new drawing, but you're worried if this material really exists in the world... ○ It's a drawing for a shape processed from a rod, yet the alloy number for a plate is specified... ○ You can't procure the material with the alloy number specified in the drawing. It is indeed listed in the JIS standards, but... Chemical composition and mechanical properties data are easily accessible. Typically, designers specify the best material in the drawing, often overlooking the availability of that material itself. This is understandable since there are no such references or textbooks available. Therefore, I hope you can use this "Availability Reference Table" as a resource for your work.

• Steel

The overseas copper market, LME inventory, domestic and international economic trends, crude oil prices, supply and demand balance, futures speculation, exchange rates... the metal markets, including copper, fluctuate dramatically every day due to various factors. Users who utilize various types of copper and copper alloys must be troubled daily. (Even we, who handle it somewhat professionally, find it difficult to understand.) Please feel free to use this for analyzing past trends and as reference material for the future.

• Steel

Pipe components, fin tubes used in heat exchangers and piping (pipes with plate-like fins called fins). At Tatsumiya Metal, we can bend pipes with fins just like conventional pipes. We can also provide pipe materials alone. If we have a mold of a similar size in our possession, we can save on mold costs. For more details on pipe processing, please download the catalog or contact us.

• Heat exchanger
• Piping materials (copper pipes, cast iron pipes)

Our pipe bending processing utilizes existing molds owned by our company and partner factories, allowing for production of one piece without the need for molds if all goes well. With Tatsumiya Metal, you can expect reliable knowledge of materials and stable procurement and supply. This has been widely adopted for custom parts in prototype and development sites, as well as for repairs of piping in older equipment! For more details, please contact us or download our catalog to take a look.

• Piping and insulation

Tatsumiya Metal's metal material sales can provide high-quality and short delivery time materials for non-metallic materials and plated materials, thanks to our extensive in-house inventory and slitting equipment. Normally, material supply takes about 1 to 10 days, but at Tatsumiya Metal, we hold inventory and perform in-house processing, allowing for shipping on the same day as the order and delivery the next day at the earliest. (Note: Normal delivery time is 4 to 5 days.) We also accommodate minimum lot sizes starting from 2 kg/mm, allowing for shipping based on application and urgency. This reduces inventory risk and ensures that materials can be supplied as needed. 【Features】 ■ Stock of various non-ferrous metal materials and plated materials ■ Supported by three slitting machines ■ Providing high-quality materials with years of slitting technology *For more details, please download the catalog or contact us.

• others

Chinki Metal offers pipe processing, pipe bending, coil winding, and piping component processing, from small lots to large quantities. We have experience with materials such as stainless steel, copper, aluminum, titanium, and special metals like Inconel and Hastelloy for pipes and various piping. We can handle pipe bending and other pipe-related processing, welding, brazing, heat exchanger coils, piping components, and prototypes from a single piece to a wide range of needs. We can also work with pipe materials alone. Additionally, leveraging the regional characteristics of Higashi-Osaka, we respond to diverse needs through collaboration with various processing genres beyond just pipes. 【Features】 - Pipe processing available from small lots to large quantities - Proven track record with special metals and special material pipes - Capable of handling everything from a single prototype to a wide range - Collaboration with various processing genres beyond pipes and piping - One-time use is possible when regular suppliers cannot arrange pipe processing or piping components - We can also accommodate pipe materials alone, not just pipe processing or piping components For more details, please contact us or download our catalog.

• Secondary steel products

Kyocera's ceramic heaters come in alumina and silicon nitride (SN) types, and they possess many excellent features not found in sheath heaters. They achieve high watt density, have good thermal efficiency, and allow for the embedding of heating elements with multiple capacities. The heating speed is fast, and any temperature distribution can be achieved, enabling direct heating of water, kerosene, and metals. They excel in electrical insulation, dielectric strength, oxidation resistance, and chemical resistance. 【Features】 - Compact / Lightweight / Energy-efficient - Excellent thermal properties - High reliability - Resistance elements are not oxidized, with minimal disconnection and aging changes - Noise-free For more details, please contact us or download the catalog.

• Gas equipment
• Heat exchanger
• Showcases (for general store use, freezing, refrigeration, heat retention, etc.)

Tatsumiya Metal, with over 80 years of history, combines the face of a manufacturer specializing in pipe bending and NC precision cutting processing, the sale and processing of non-ferrous metal materials, and the sale of ceramic heaters, functioning as a trading company. If you have any issues regarding metal materials or processing, come to Tatsumiya before you encounter problems! ○ We specialize in metal pipe processing. In the world of bending processing, where small lots are common, the presence or absence of molds becomes quite important. We propose a mix of our own molds and equipment, as well as those from partner factories. ○ With 80 years in the non-ferrous metal industry, we have been supported by both major corporations and technical professionals in Higashiosaka for many years. ○ Thanks to our deep knowledge of materials, Tatsumiya Metal offers comprehensive capabilities, demonstrating proposal power and procurement advantages in the field of precision cutting processing. ○ Although not metal, we also handle ceramic heaters as part of our trading company function. *For more details, please download the catalog or contact us.

• Steel
• Heat exchanger
• Fittings

Chinki Co.'s metal pipe bending and coil winding processing can accommodate a wide range of quantities, from small lots to large volumes, and is capable of handling materials such as stainless steel, copper, aluminum, titanium, as well as special metals like Inconel and Hastelloy. 【Features】 ■ Available materials: Stainless steel, copper, aluminum, titanium, and special metals like Inconel and Hastelloy with proven results. ■ Capable of integrated production from bending processing to welding, brazing, and heat exchanger coils! ■ Can accommodate everything from prototypes to full-scale production! *For more details or production examples, please download the catalog or contact us.

• Heat exchanger

Chinki Metal's pipe bending processing can accommodate everything from small lots to mass production. We have experience with materials such as stainless steel, copper, aluminum, titanium, and special metals like Inconel and Hastelloy. In addition to bending processing, we can also handle welding, brazing, heat exchanger coils, and can respond comprehensively from a single prototype. Furthermore, leveraging the regional characteristics of Higashi-Osaka, we meet diverse needs through collaboration with various processing genres. 【Features】 ○ Supports everything from small lots to mass production ○ Experience with stainless steel, copper, aluminum, titanium, and special metals like Inconel and Hastelloy ○ Capable of comprehensive support for bending processing, welding, brazing, heat exchanger coils, and from a single prototype *For production examples, please download the catalog or contact us.

• Heat exchanger
• Piping materials (copper pipes, cast iron pipes)
• Fittings

At Tatsumiya Metal Co., Ltd. Kyotanabe Factory, we have approximately 30 units of combined CNC automatic lathes and CNC automatic lathes. In addition, we are equipped with quality inspection equipment and measuring facilities, including surface roughness and contour measuring instruments, roundness and cylindrical shape measuring instruments, and measuring (optical) microscopes/image measurement systems. We have established a system to meet the high demands for quality. ● For more details, please download the catalog or contact us.

• others

We have a large stock of copper and brass at our headquarters coil center. We achieve small lot production and short delivery times with four slitting machines of various sizes. <Features> ◆ Stock of various non-ferrous metal materials and plated materials ◆ Immediate delivery system with four slitting facilities ◆ One of the few in the non-ferrous industry to handle thick materials up to 3.5 mm ◆ Providing high-quality materials with years of slitting technology ◆ Capable of handling small quantities (basic minimum lot weight kg/mm) ◆ Prototype support available (special cutting and provision of units such as a few centimeters or several meters for prototype purposes)

• Steel

Numerous achievements in difficult-to-machine stainless materials, including SUS304 and SUS316. Maximize the advantages of material procurement unique to Tatsumiya Metal, which has the face of a material trading company. Also, if you are considering lead-free brass, please do not hesitate to contact us!

• Fittings
• Secondary steel products

The metal materials sales division of Tatsumiya Metal, a trading company, can broadly cover customer requests with a rich in-house inventory and a wide range of sourcing options. <Features> ◆ We can propose the best solutions considering the desired material, shape, quantity, etc., whether through inventory, arrangements in the market, or manufacturer production. ◆ Processing of the materials themselves, such as cutting and plating, is possible. ◆ We also offer extensive services for machining, bending, pressing, and other component processing. We cover a wide range of needs.

• Steel

Copper alloys, such as copper and brass (the material of the 5 yen coin) and nickel silver (the material of the 100 yen coin), have antibacterial properties. For example, simply using them in areas that are frequently touched, such as handrails and door handles, can yield these effects. They are particularly noted in hospitals and schools to prevent hospital-acquired infections, being used in bed frames and medical trays, as well as attaching brass tabletops to desks and using ballpoint pens with copper grips, effectively reducing the spread of bacteria.

• others
• Hardware Doors, Handles and Locks
• Steel