Beryllium copper C17500 (Becu) is a highly suitable choice for applications requiring a mechanically robust spring or component with outstanding fatigue, elastic properties, and high conductivity. While copper is typically perceived as a soft and ductile metal, the addition of beryllium to the alloy enables it to achieve a hardness of up to 45 Rc (Rockwell). By way of comparison, 301 stainless steel in full hard condition rates at approximately 41 Rc. Moreover, Becu can be surface plated with gold and/or nickel alloys, enhancing its versatility for a wide range of industries.
At Amtech, we commonly observe our customers using Becu for electronic connectors and custom flat springs. These components are frequently employed in precision-demanding applications with limited space. Through our close collaboration with customers over the years, we have assisted in the development and enhancement of their Becu parts. This collaboration has allowed us to create specialized processes dedicated to producing parts and springs from Becu. The outcome is consistently precise and replicable parts.
Our direct experience includes working with all the various hardness levels of Becu, from TH01 (1/4 Hard HT) to TH04 (Full Hard). Utilizing our lab furnace, we can conduct age hardening internally to uphold our stringent quality standards. By having this capability on-site, we can carefully oversee and minimize any undesired part displacement typically associated with the Becu age hardening process.
In exceptional situations, we have opted for alternative materials like C72900 (Copper Nickel Tin) instead of Becu. This choice is typically made when customers demand the utmost precision achievable with current technology while needing similar mechanical characteristics to Becu. Additionally, we observe reduced displacement during the hardening phase in comparison to Becu. Given that C72900 does not contain Beryllium, it is particularly suitable for specific medical applications and devices.
Feel free to get in touch with our team of experts for a complimentary consultation when creating your springs and electrical connectors. With our extensive experience in bending, shaping, and forming steel, we are skilled at pushing boundaries to guarantee the success of your project.
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