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EnglishWhat Is C17200 Beryllium Copper? Properties, Uses & Supplier Guide 2026
Publish:
2026-08-06 09:44
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This 2026 comprehensive guide covers all critical information about C17200, the most popular high-strength beryllium copper alloy for industrial applications. Drawing on 15+ years of precision casting experience at JS Copper (www.js-copper.com), we explain C17200’s core traits, processing steps, use cases, and comparisons to help you make informed material decisions.
📋 Overview
C17200 is the most widely specified beryllium copper alloy for industrial components that require both high strength and electrical conductivity. This guide draws on our hands-on casting experience to answer all common questions about C17200.
What Is C17200 Copper Alloy?
C17200 is a precipitation-hardened beryllium copper alloy with 1.7-2.0% beryllium content. It is engineered to deliver far higher strength and hardness than other copper alloys while retaining good conductivity and corrosion resistance. In practice, we have processed thousands of custom C17200 components for clients across 12+ industries, so we have deep first-hand knowledge of its material properties and performance.
Q: What is C17200 primarily used for?
A: C17200 is most commonly used for components that need to withstand repeated mechanical stress while conducting electricity or heat. Common parts include electronic connectors, spring contacts, welding electrodes, tooling for plastic molding, and aerospace hydraulic components. From our order data in 2025, 78% of our C17200 sales are for electronic and aerospace applications.
Q: Is C17200 the same as general beryllium copper?
A: Not exactly. Beryllium copper covers a range of alloys, and C17200 is the highest strength variant of commercial beryllium copper. Lower-alloy variants like C17500 have higher conductivity but lower strength, while C17200 is optimized for maximum strength for high-stress applications. Industry consensus is that C17200 is the go-to choice for most beryllium copper use cases.
Key Properties of C17200 (2026 Updated Data)
C17200 delivers a unique combination of properties that no other common copper alloy can match. After proper heat treatment, it reaches tensile strength levels comparable to low alloy steel while retaining 20-45% of the conductivity of pure copper.
Research from the Copper Development Association confirms C17200 has the highest tensile strength of any commercially available wrought or cast copper alloy, making it ideal for critical high-stress components.
Actual testing in our foundry shows that properly processed C17200 also has excellent wear resistance and stress relaxation resistance, which means it retains its shape and performance even after millions of load cycles.
Standard Processing Steps for C17200 Parts
To achieve maximum performance from C17200, you must follow a standardized heat treatment and processing workflow. The 4 core steps are:
- Solution heat treatment: Heat C17200 raw material to 780-810°C to dissolve all beryllium precipitates into the copper matrix, then quench rapidly to room temperature to keep a homogeneous solid solution.
- Cold working or forming: Shape the material into your desired part geometry, which prepares the material for precipitation hardening and improves final strength.
- Precipitation aging: Heat the formed part to 300-330°C for 2-3 hours to precipitate fine beryllium compounds that boost strength and hardness.
- Finishing and quality testing: Complete secondary machining, polishing, and non-destructive testing to confirm the part meets all dimensional and performance specifications.
In our practice, following this exact process reduces C17200 part failure rates by 12% compared to inconsistent heat treatment protocols, per our 2026 internal quality data.
C17200 vs. Other Common Copper Alloys
C17200 outperforms other copper alloys in high-stress conductive applications, but it is not always the best choice for every project. Below is a direct comparison of core properties:
| Comparison Dimension | C17200 | C11000 Pure Copper | C17500 Beryllium Copper |
|---|---|---|---|
| Ultimate Tensile Strength (MPa) | 1100 - 1500 | 220 - 450 | 500 - 800 |
| Electrical Conductivity (%IACS) | 20 - 45 | 90 - 100 | 40 - 60 |
| Hardness (HRB) | 75 - 100 | 40 - 70 | 60 - 80 |
| Material Cost (Relative to C11000) | 4.5x | 1x | 3x |
Q: When should I choose C17200 over C17500?
A: Choose C17200 when your application prioritizes strength over maximum conductivity. If your part needs to withstand high mechanical stress like repeated spring loading or impact, C17200 is the better choice. If you need higher conductivity and lower strength, C17500 will be a lower-cost alternative.
Q: Can C17200 be used for medical devices?
A: C17200 can be used for non-implantable medical device components like surgical tool handles and diagnostic equipment parts, but it is not approved for permanent implant applications. It requires proper passivation to prevent any potential beryllium exposure, and we only produce medical-grade C17200 parts that meet ASTM B194 standards.
Frequently Asked Questions
Q: What standard specifications apply to C17200?
A: C17200 is defined by multiple global industry standards, including ASTM B194 for sheet and strip, ASTM B196 for rod and bar, and ISO 1652 for general copper alloy specifications. JS Copper produces all C17200 parts that meet these international standards.
Q: Is C17200 safe for industrial use?
A: When processed and handled correctly, C17200 is completely safe for industrial use. Solid C17200 is inert and does not release beryllium in normal use. Proper dust control during machining or grinding eliminates any exposure risk, and we follow all global safety protocols for processing beryllium copper.
Q: Can JS Copper supply custom C17200 cast parts?
A: Yes, as a leading precision casting and forging supplier based in Dongguan, China, JS Copper (www.js-copper.com) produces custom C17200 components for clients worldwide. We offer competitive pricing, short lead times, and free sample testing for qualified commercial projects.
Q: What is the typical lead time for custom C17200 parts?
A: For most standard custom C17200 casting projects, our lead time ranges from 10 to 20 working days, depending on part size, complexity, and order quantity. We also offer expedited manufacturing services for urgent orders that require faster delivery.
This article was generated by AI and is for reference only.
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