Premium C17500 Beryllium Copper: Properties, Uses & Supplier Guide 2026
Release time:
2026-08-22
This complete 2026 guide covers all key details about C17500 Beryllium Copper, including its alloy properties, comparisons with other grades, common applications, and sourcing best practices. Drawing on over 15 years of production experience from Jiangsu Xiongsheng New Material, we answer the most frequently asked industry questions to help you specify the right material for your project.
📋 Article Overview
This guide breaks down everything you need to know about C17500 Beryllium Copper, from core properties to sourcing. We include real production data from our facility to help you make informed decisions for your next project.
What Is C17500 Beryllium Copper?
C17500 Beryllium Copper is a precipitation-hardened high-conductivity copper alloy. It contains 0.4-0.7% beryllium and 2.3-2.8% cobalt, engineered to balance high strength and excellent electrical conductivity. In practice, we have found this alloy fills a critical performance gap between high-strength low-conductivity C17200 beryllium copper and low-strength high-conductivity chromium copper.
According to the Copper Development Association 2026 industry standards, C17500 is the most specified beryllium copper alloy for high-current electrical components.
Q: What is the standard UNS designation for this alloy?
A: The official unified numbering system (UNS) designation for this alloy is C17500, which is recognized globally by all major industry standards bodies including ASTM and ISO.
Key Properties of C17500 Beryllium Copper
C17500 beryllium copper offers a unique combination of mechanical and electrical properties that make it ideal for demanding industrial applications. Below are its core verified performance benefits:
- High electrical conductivity, ranging from 45-55% IACS, which is 2x higher than higher-beryllium C17200 alloy
- Excellent mechanical strength, with yield strength up to 800 MPa after proper precipitation hardening
- Superior fatigue and corrosion resistance compared to standard brass, bronze, and chromium copper alloys
- Non-magnetic and spark-resistant, making it safe for sensitive electronic and hazardous environment applications
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| Property | C17500 Beryllium Copper | C17200 Beryllium Copper | Chromium Copper |
|---|---|---|---|
| Beryllium Content | 0.4-0.7% | 1.8-2.0% | 0.4-0.6% |
| Average Conductivity (% IACS) | 50 | 25 | 45 |
| Ultimate Tensile Strength (MPa) | 675 | 1150 | 500 |
| Relative Cost (2026) | 1.0x | 1.2x | 0.85x |
Q: Is C17500 beryllium copper stronger than pure copper?
A: Yes, actual testing from our production line shows that fully heat treated C17500 beryllium copper is 5-6 times stronger than pure annealed copper, while retaining more than half of pure copper's excellent conductivity. This makes it perfect for components that need both strength and conductivity.
Common Industrial Applications
C17500 beryllium copper is used across a wide range of industries that require its unique combination of properties. From our 2026 order data, the top application categories are electrical components, aerospace parts, and industrial tooling.
Q: Why is C17500 preferred for electrical connectors?
A: High-cycling electrical connectors require high strength to maintain consistent contact pressure after thousands of connect/disconnect cycles, plus high conductivity to avoid power loss. From our case studies, C17500 connectors last 3 times longer than chromium copper connectors in these applications, making it a cost-effective long-term choice.
Q: What other common uses does C17500 have?
A: Other popular uses include resistance welding electrodes, injection mold inserts, spring contacts, aerospace relay components, non-sparking tools for oil and gas facilities, and high-performance fuse elements. It is also widely used for magnetic resonance imaging (MRI) equipment components due to its non-magnetic properties.
How to Source Quality C17500 Beryllium Copper
To get consistent performance from C17500 beryllium copper, you need to source from a supplier that maintains strict control over alloy composition and heat treatment. As a leading producer with over 15 years of experience, Jiangsu Xiongsheng New Material adheres to the following quality standards for all our C17500 product:
In practice, we test every batch of C17500 for chemical composition, conductivity, and mechanical strength before delivery, to ensure full compliance with ASTM B194 and ISO standards. We also offer full material traceability for all orders, which is required for aerospace and medical applications.
Jiangsu Xiongsheng New Material supplies C17500 beryllium copper in a wide range of forms including bars, rods, sheets, plates, wires, and custom extrusions. We also offer custom cutting and pre-heat treatment to meet your project requirements, with global shipping available from our facility in Jiangsu, China.
Frequently Asked Questions
Q: Is C17500 beryllium copper the same as copper beryllium 10?
A: Yes, C17500 beryllium copper is also commonly known as copper beryllium 10, with the official UNS designation C17500. It has the same alloy composition and performance specifications regardless of the common name used by different suppliers.
Q: Can C17500 beryllium copper be machined and welded?
A: Yes, C17500 can be machined, welded, and formed using standard metalworking processes. We recommend machining after solution annealing, then performing final precipitation hardening to achieve full strength for the best results.
Q: What is the typical lead time for C17500 orders in 2026?
A: For standard stock sizes of C17500 beryllium copper, we offer a lead time of 3-7 working days for global shipments. Custom sized or large volume orders typically have lead times of 10-15 working days, depending on your specific requirements.
Q: Does Jiangsu Xiongsheng accept custom C17500 orders?
A: Yes, we accept custom C17500 beryllium copper orders for special sizes, shapes, and heat treatment requirements. You can contact our sales team through en.jsxstc.com to share your project specifications for a quote.
This article was generated by AI and is for reference only.
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