C17000 Beryllium Copper Strip
Grade: UNS C17000 / CuBe1.7 / Alloy 165 / CDA 170 / DIN 2.1245
Standards: ASTM B194, SAE J461, SAE J463
Specification: Thickness 0.05mm - 2.5mm, Width 5mm - 400mm or Custom Precision Slit
1. Factory Direct Supply: Direct manufacturer pricing with strict quality control and batch consistency.
2. Superior Bending & Formability: Lower beryllium content provides excellent cold formability for severe sharp bending.
3. Ultra-High Precision Slitting: Precision width slitting tolerance up to ±0.05mm for high-speed automated stamping.
4. Flexible Supply Conditions: Available in annealed (TB00) and mill-hardened tempers (TM00–TM06, no post heat treatment required).
5. Custom Slitting & Export Packaging: Precision slit coils wrapped with moisture-proof protection for export.
6. Full Traceability & MTC: Mill Test Certificate (MTC) per EN 10204 3.1 provided with every shipment.
Description
C17000 Beryllium Copper Strip for Precision Springs & Connectors — High Formability, Mill-Hardened Supply
C17000 Beryllium Copper Strip (UNS C17000 / CuBe1.7 / Alloy 165) is a precipitation-hardening copper alloy with 1.60–1.79% beryllium content. With 25+ years of production experience, Dongguan Jiaye Dingsheng Precision Casting & Forging Co., Ltd. supplies this strip in 0.05–2.5mm thickness and 5–400mm width. Mill-hardened TM00–TM06 tempers reach 680–1150 MPa tensile strength without post-stamping heat treatment. The product supports ±0.05mm precision slitting, and each shipment is delivered with EN 10204 3.1 MTC certification.
What Is C17000 Beryllium Copper Strip?
Compared to C17200, C17000 has a reduced beryllium concentration, which effectively lowers the danger of microcracking during abrupt bending while preserving stable fatigue resistance and stress relaxation performance. In various geographical markets, it is referred to as Alloy 165, CDA 170, or DIN 2.1245. It conforms with ASTM B194, SAE J461, and SAE J463 standards. Phosphor bronze and stainless steel cannot match the material's performance in sections that need both mechanical strength and electrical conductivity.
Chemical Composition
| Element | Content |
|---|---|
| Beryllium (Be) | 1.60 – 1.79% |
| Co + Ni (min) | ≥ 0.20% |
| Co + Ni + Fe (max) | ≤ 0.60% |
| Iron (Fe) | ≤ 0.10% |
| Aluminum (Al) | ≤ 0.15% |
| Silicon (Si) | ≤ 0.15% |
| Lead (Pb) | ≤ 0.02% |
| Copper (Cu) | Balance |
Chemical composition is verified using ICP-OES analysis. Beryllium content is controlled within the 1.60–1.79% range to guarantee a predictable age-hardening response. Grain size is controlled per ASTM E112 to prevent surface defects during deep drawing.
Mechanical & Electrical Properties
| Temper | Tensile Strength | Hardness | Conductivity |
|---|---|---|---|
| Solution Annealed (TB00 / A) | 410 – 520 MPa | HV 110 – 135 | 15 – 19% IACS |
| Age-Hardened (TH04 / AT) | 1100 – 1300 MPa | — | 22 – 28% IACS |
| Mill-Hardened (TM00–TM06) | 680 – 1150 MPa | HV 250 – 380 | 22 – 28% IACS |
Thermal conductivity in hardened condition reaches 105 W/m·K. TM-temper material is supplied ready to stamp — no further heat treatment is needed, which shortens your production cycle and reduces distortion risk.
Dimensional Specifications
| Parameter | Range |
|---|---|
| Thickness | 0.05mm – 2.5mm |
| Width | 5mm – 400mm |
| Width Tolerance | ±0.05mm (precision slit) |
| Thickness Tolerance | ±0.002mm (laser micrometer) |
| Supply Form | Strip, Coil |
| Custom Slitting | Available |
Coils are wrapped with moisture-proof protection for export. Custom slit widths are available to match your stamping die specifications directly.
Key Performance Advantages
Better formability for small-radius bending is provided by C17000 Beryllium Copper Strip, which can accommodate intricate spring and micro-connector formation. To reduce manufacturing cycles, pre-hardened TM-series tempers do not undergo secondary age treatment. The alloy is appropriate for contact components that transport electricity because it retains steady conductivity under rated strength. After 1000 hours at 100°C, it maintains more than 90% of its initial stress and performs more steadily than stainless steel and regular phosphor bronze.
Typical Application Areas
It is frequently used to prevent vibration and temperature cycling in automobile ECU connections and sensor terminals. It applies to micro-switches for long-cycle operation and EMI shielding components in 5G and telecom equipment. Additionally, it adapts to complicated forming and conductive working requirements for a variety of precision electronic spring contacts and aeronautical precision hydraulic components.
Quality Control & Traceability
All products undergo raw material inspection, in-process monitoring and final full inspection. Finished goods are tested for chemical composition, hardness, dimension and surface integrity. Each order is equipped with 3.1 MTC reports with full batch traceability. Our products pass ISO 9001, RoHS and REACH compliance certification.
FAQ
Q1: What is the difference between C17000 and C17200?
A1: C17000 has lower beryllium content, better bending formability and lower cost, with basically consistent fatigue and stress relaxation performance for most connector and spring applications.
Q2: Can C17000 be soldered and welded?
A2: Yes. The material supports conventional electronic soldering and resistance welding after surface cleaning and oxide removal.
Q3: Is heat treatment required for processing?
A3: Annealed materials need 315°C aging for 2–3 hours for peak hardness. TM-temper finished strips can be stamped directly without extra heat treatment.
Q4: Does the material meet environmental compliance standards?
A4: Solid strip complies with RoHS and REACH rules. Only dust generated during machining needs targeted ventilation protection.
Q5: What are the delivery terms?
A5: In-stock products ship within 3–5 days. Custom sizes are available, and formal quotations will be provided within 24 hours after inquiry.
Contact Us
If you have procurement, customization and technical demands for C17000 Beryllium Copper Strip, please send your detailed size, temper and quantity requirements to js01@jstongcai.com.cn. Our team will reply and provide professional solutions within 24 hours.
