Lead-free copper alloy "Eco Brass" - Responding to environmental regulations!
Lead-free and cadmium-free copper alloys that comply with regulations on the content of substances such as lead and cadmium! They can also be used as an alternative to stainless steel, leveraging their second characteristic of strength.
"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.
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basic information
It can be used as an alternative to free-cutting brass, forged brass, and bronze casting materials for water supply, hot water supply, and plumbing-related equipment. Additionally, it takes advantage of high strength and high wear resistance, while also complying with lead regulations, making it suitable for automotive-related parts as well. For more details, please download the catalog or feel free to contact us!
Price information
Prices may fluctuate due to quantity and copper market conditions. Please feel free to contact us.
Delivery Time
※The delivery time may vary depending on the quantity and size, so please feel free to contact us.
Applications/Examples of results
Valves, water meters, and other plumbing fixtures (compliance with Japanese Waterworks Association standards, U.S. standards, etc.) Alternatives for high-strength, high-wear-resistant parts made of stainless steel, high-strength brass, and phosphor bronze Alternatives to brass castings for complex shapes (accessories, monuments, etc.) utilizing good fluidity of molten metal
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Company information
<Metal Materials Trading Division> With a rich inventory and four slitting facilities, we supply materials nationwide from our Higashi-Osaka Coil Center. We specialize in the sale of copper alloy materials and non-ferrous metal materials. In addition to traditional copper alloy materials, we are actively promoting the next-generation copper-aluminum clad material "CCA" in collaboration with ACM (Applied Composite Material Corp.). <Metal Processing Division> We excel in processing small quantities of a wide variety of metal pipes. Our diverse techniques include coil winding, R-bending, various bending processes, and welding. We handle everything from one-off parts used in heat exchanger components and machinery to larger quantities for automotive, consumer, and residential applications. 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. Additionally, our precision cutting processing using NC automatic lathes leverages the procurement advantages unique to Tatsumiya, which has a metal materials trading division, enhancing customer satisfaction through technical expertise, procurement power, and cost efficiency. With over 90 years of establishment as a processing trading company, we view the 100-year mark as a milestone and will continue to build a great company in the future.