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Copper alloy round bar Product List

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ECO Series <Silver Copper Original Series>

ECO Series <Silver Copper Original Series>

Providing alternative products from various manufacturers that consider the environment! Introducing products that comply with environmental pollution regulations.

White copper is working to reduce the use of environmental pollutants from the perspective of ESG/SDGs. The "ECO Series" is based on the conditions that it is made from materials that comply with restrictions on the use of specific harmful substances from the perspective of human health and environmental protection, and that it is made from materials and methods that reduce carbon dioxide emissions for the protection of the global environment. We comply with regulations such as the European Union (EU) Restriction of Hazardous Substances (RoHS) directive and provide alternative products from various manufacturers that are environmentally friendly. 【Product Lineup (Partial)】 ■ Eco Brass Round Bar ■ BZ5A (Cadmium-free, Lead-free) Free-Cutting Round Bar ■ Rose Bronze Round Bar / Round Tube ■ Lead-free Bronze Round Bar / Round Tube ■ Corrosion Hard Cutting Plate / Round Bar *For more details, please refer to the PDF materials or feel free to contact us.

  • alloy
  • Copper alloy round bar

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We will sell and ship cuttings of bronze, nickel silver, and beryllium copper.

We will sell and ship cuttings of bronze, nickel silver, and beryllium copper.

Selling the desired materials in the desired quantities. Shortest delivery time and small sales available with band saw cutting. Available from 3mm.

Phosphor bronze, nickel silver, and beryllium copper are available in standard lengths, mostly 2000mm or 2500mm. However, many customers prefer to purchase cut pieces due to prototyping, the machines used, and transportation considerations, especially for free-cutting materials, where most thicker items are sold as cut pieces. Shinwa Trading conducts processing and sales through band saw cutting, providing cutting and delivery with the shortest lead time. In recent years, the miniaturization of electronic and electrical components has led to a demand for lighter, thinner, and smaller materials. Particularly, the prices of copper alloys have risen, and there is a desire to purchase only the necessary materials in the required amounts for product prototyping, which often requires advanced processing. Sales are available from a minimum length of 3mm (or 8mm depending on the diameter). We can also accommodate small quantities of various types. We can provide various mill sheets and environmental materials for our products. Phosphor bronze (C5191/C5212) Free-cutting phosphor bronze (C5341/C5441) Nickel silver (C7521) Free-cutting nickel silver (C7941) Beryllium copper (25 alloy) We also offer cut sales of some thick phosphor bronze plates and beryllium copper thick plates and blocks. We appreciate your consideration of these as well.

  • Other machine elements
  • Non-ferrous metals
  • alloy
  • Copper alloy round bar

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HA Cadmireless

HA Cadmireless

Recommended for high-precision machining!

This product is an original item made of white copper. It is a material that has undergone stress relief treatment by "annealing" the cadmium-free round bar, reducing processing distortion. *For more details, please refer to the PDF document or feel free to contact us.

  • Non-ferrous metals
  • Copper alloy round bar

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Case Study: Round Bar [Aluminum Bronze / Lead Bronze Casting]

Case Study: Round Bar [Aluminum Bronze / Lead Bronze Casting]

Unique know-how! We can accommodate a wide range from prototypes to small lots and mass production.

Here are examples of the production of "round bars" using aluminum bronze/lead bronze castings as materials. 【Production Examples】 ■φ85×300L, 13kg, two types of aluminum bronze (ALBC2) ■80×300L, 15kg, LBC4 ■φ50×300L, 150L, 100L, CAC604 *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing
  • Copper alloy round bar

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Cutting sales of phosphor bronze, nickel silver, and beryllium copper for semiconductor manufacturing.

Cutting sales of phosphor bronze, nickel silver, and beryllium copper for semiconductor manufacturing.

The optimal material for semiconductor manufacturing fixtures, in the necessary quantity, with a short delivery time.

In the semiconductor manufacturing industry, the precision and durability of jigs significantly affect product quality. In particular, appropriate material selection is essential for jigs that require high-precision positioning or must withstand thermal loads. Low-quality materials can adversely impact the manufacturing process, potentially leading to reduced yield and product defects. Our products offer materials such as phosphor bronze, nickel silver, and beryllium copper, which possess high strength and wear resistance, contributing to the performance improvement of jigs in semiconductor manufacturing. 【Application Scenarios】 - High-precision positioning jigs - Jigs with high thermal loads - Jigs for microfabrication 【Benefits of Implementation】 - Delivery of the necessary products in the required quantities - Immediate availability of environmental materials and mill sheets (strength of direct delivery wholesalers) - Extended lifespan of jigs - Stabilization of the manufacturing process - Improvement of product quality

  • Other machine elements
  • Non-ferrous metals
  • alloy
  • Copper alloy round bar

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Selling small quantities of bronze and beryllium copper.

Selling small quantities of bronze and beryllium copper.

From various everyday goods to the semiconductor and aerospace industries - copper alloys supporting convenient solutions in our daily lives.

Phosphor bronze and beryllium copper are generally used as high-strength and high-spring materials in electronic components and mechanical parts among copper alloys, and many of the users are likely to be involved in machining. Our company has a proven track record in sales for various applications, including musical instruments, test pieces, daily products, models, and more, ranging from small quantity sales to mass production. In particular, we can assist with issues such as: - Inability to obtain materials in time - Difficulty in small quantity sales - Lack of mill certificates - No shipping options to remote areas - Uncertainty in arranging environmental documentation - Mistakes in arrangements by the purchasing department There are various reasons and circumstances that may cause difficulties, but in such cases, please feel free to contact us. Additionally, based on our long-standing sales experience, we may be able to obtain products that are not widely available in the market. We have phosphor bronze and beryllium copper in stock in round bars and standard-sized plates.

  • Non-ferrous metals
  • alloy
  • Other electronic parts
  • Copper alloy round bar

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We accept age-hardening treatment of beryllium copper (C1720).

We accept age-hardening treatment of beryllium copper (C1720).

To fully realize the true value of beryllium copper, aging heat treatment is necessary. The products purchased from us will undergo heat treatment.

Beryllium copper is an alloy that adds a small amount of beryllium to copper. It has the highest strength among copper alloys, possesses high springiness, and features non-magnetic properties, spark-free operation, and high corrosion resistance. Furthermore, it has properties suitable for metal processing, molding, and machining, and is widely used in mechanical parts, electrical and electronic component contacts and switches, electrodes requiring strength and conductivity, heat-resistant wires, brushes, sockets, and probe pins. Beryllium copper undergoes precipitation hardening, where beryllium precipitates within the structure, resulting in tensile strength and hardness values that are among the highest for copper alloys (up to 1500 N/mm² for C1720). This process is known as aging treatment (heat treatment); however, after aging treatment, there can be cases where bending processing leads to cracking or where machining resistance is high, making it difficult to process effectively. Since its machinability is not as good compared to brass, it is often the case that the material is partially processed before heat treatment for finishing, or that aging treatment is performed after machining. There are recommended settings for heat treatment that are somewhat fixed. Our company collaborates with businesses that have heat treatment furnaces to provide aging treatment for materials purchased from us, such as those from NGK (Nippon Gas Co., Ltd.).

  • Coaxial Connectors
  • Non-ferrous metals
  • socket
  • Copper alloy round bar

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Sales of cutting materials for electronic devices: phosphor bronze, nickel silver, and beryllium copper.

Sales of cutting materials for electronic devices: phosphor bronze, nickel silver, and beryllium copper.

The optimal material for electronic device terminals, in the necessary quantity, with a short delivery time.

In the electronics industry, there is a trend towards miniaturization and high performance of terminals, leading to a demand for reliable materials. Particularly for terminals that are subjected to repeated use or high-temperature environments, materials with excellent wear resistance, conductivity, and heat resistance are essential. Inappropriate material selection can lead to contact failures and reduced product lifespan. The products we offer address these challenges and support high-quality terminals and manufacturing component materials. 【Application Scenarios】 - Manufacturing of electronic device terminals - Connector components - Switch components - Relay components 【Benefits of Implementation】 - Short delivery times (immediate delivery if in stock) - Manufacturing of high-quality terminals - Improved product reliability - Cost reduction - Product traceability (direct delivery from manufacturers) and provision of various environmental documentation.

  • Other machine elements
  • Non-ferrous metals
  • alloy
  • Copper alloy round bar

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