Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of uns c17510 beryllium copper alloys in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
UNS C17510 Beryllium Copper Alloy (also known as CuNi2Be or Alloy 3) is a high-strength, high-conductivity copper alloy containing beryllium and nickel. It offers an exceptional combination of mechanical strength, electrical conductivity, and thermal stability, making it one of the most advanced copper alloys available for aerospace, electronics, oil & gas, and precision tooling applications.
Manufactured in compliance with ASTM B196, B197, B441, and RWMA Class 3, C17510 is the ideal material for welding electrodes, connectors, switches, and high-load springs. It retains its strength and conductivity even after prolonged exposure to elevated temperatures.
Main Keywords: UNS C17510, Beryllium Copper Alloy, CuNi2Be, Alloy 3, High Conductivity Beryllium Copper, RWMA Class 3 Copper, Beryllium Copper Rod, C17510 Bar Supplier
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Product Specifications
| Property | Specification |
|---|---|
| Alloy Designation | UNS C17510 / CuNi2Be / Alloy 3 |
| Standards | ASTM B196, B197, B441, RWMA Class 3 |
| Forms Available | Rod, Bar, Plate, Sheet, Strip, Wire, Tube |
| Density | 8.26 g/cm³ |
| Electrical Conductivity | 20–45% IACS |
| Thermal Conductivity | 200 W/m·K |
| Melting Point | 870 – 980 °C |
| Temper Conditions | AT (Aged), HT (Heat-Treated), H (Hard), Spring Temper |
| Surface Finish | Bright, Polished, Machined, Mill Finish |
| Packaging | Standard export seaworthy packaging |
Chemical Composition (Typical %)
| Element | Content (%) |
|---|---|
| Copper (Cu) | Balance |
| Beryllium (Be) | 0.40 – 0.70 |
| Nickel (Ni) | 1.40 – 1.80 |
| Cobalt (Co) | ≤ 0.25 |
| Iron (Fe) | ≤ 0.15 |
| Lead (Pb) | ≤ 0.05 |
| Others | ≤ 0.10 |
Mechanical Properties
| Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) | Electrical Conductivity (% IACS) |
|---|---|---|---|---|---|
| Annealed (O) | 500 – 600 | 350 – 450 | 20 – 25 | 70 – 80 | 45 |
| Aged (AT) | 900 – 1100 | 800 – 950 | 3 – 10 | 95 – 105 | 22 – 28 |
| Heat Treated (HT) | 1100 – 1300 | 950 – 1150 | 2 – 5 | 105 – 110 | 20 – 25 |
International Standard Size Chart (Metric & Imperial Units)
| Form | Size Range (Metric) | Size Range (Imperial) | Wall Thickness / Class | Dimensional Tolerance |
|---|---|---|---|---|
| Rod & Bar | Ø 6 – 250 mm | 1/4" – 10" | H, HT | Diameter ±0.10 mm |
| Plate | 2 – 60 mm thick | 0.08" – 2.36" | Standard / Precision | Thickness ±0.20 mm |
| Sheet | 0.3 – 6.0 mm | 0.012" – 0.24" | H / 1/2H / Spring | ±0.05 mm |
| Strip | 0.1 – 3.0 mm | 0.004" – 0.12" | H / HT | ±0.03 mm |
| Tube | OD 6 – 150 mm | 1/4" – 6" | 0.5 – 5.0 mm WT | OD ±0.10 mm, WT ±10% |
| Wire | 0.5 – 8 mm | 0.02" – 0.31" | Spring Temper | ±0.02 mm |
Features & Advantages
✅ High Strength & Hardness – Comparable to tool steel after age hardening.
✅ Excellent Electrical & Thermal Conductivity – Up to 45% IACS.
✅ Superior Wear & Fatigue Resistance – Ideal for repeated stress applications.
✅ Non-Sparking & Non-Magnetic – Safe for hazardous environments.
✅ Outstanding Dimensional Stability – Maintains tolerances under high loads.
✅ Excellent Machinability & Formability.
✅ Resistant to Stress Relaxation – Ideal for electronic connectors.
Applications
Spot and seam welding electrodes (RWMA Class 3)
Electrical connectors, relays, and switch components
Precision springs and contact terminals
Aerospace components and instrumentation parts
Oil & gas drilling and non-sparking tools
Injection mold components and die-casting inserts
FAQ (Frequently Asked Questions)
Q1: What is the difference between C17510 and C17200 Beryllium Copper?
A1: C17510 contains nickel and has higher conductivity but slightly lower strength than C17200. C17200 is stronger but less conductive.
Q2: Can C17510 be heat treated?
A2: Yes, it is supplied in a solution-annealed condition and then aged (AT) to achieve peak strength.
Q3: Is C17510 suitable for welding electrodes?
A3: Absolutely. It's the standard RWMA Class 3 alloy for resistance welding electrodes and holders.
Q4: What is its maximum operating temperature?
A4: Continuous service temperature is approximately 315°C (600°F).
Q5: Can it be machined easily?
A5: Yes. Machinability is good in the heat-treated condition and excellent when annealed.
Q6: Is C17510 non-magnetic?
A6: Yes, it's non-magnetic and non-sparking, suitable for sensitive environments.
Q7: What surface finishes are available?
A7: Bright drawn, polished, machined, and pickled finishes.
Q8: Are third-party inspections available?
A8: Yes, SGS, BV, TUV, and Intertek inspections are available upon request.
Q9: Can I order custom-cut sizes?
A9: Yes, we supply custom lengths, widths, and tempers according to your specifications.
Q10: What is the typical lead time?
A10: Usually 10–20 working days, depending on quantity and form.
Inspection & Quality Assurance
Every UNS C17510 Beryllium Copper product undergoes strict quality control and testing in accordance with ASTM B196/B197/B441 and ISO 9001:2015 quality management systems.
Inspection Process
Raw Material Analysis: Verified via spectrometer for Be and Ni content accuracy.
Dimensional & Visual Inspection: Each batch checked for surface finish, tolerance, and straightness.
Mechanical Testing: Tensile strength, hardness, and elongation tests per ASTM standards.
Electrical Conductivity Test: Measured using calibrated conductivity meters (IACS).
Eddy Current & Ultrasonic Testing: 100% non-destructive testing for defects.
Microstructure Analysis: Confirms uniform precipitation hardening and grain structure.
Third-Party Verification
SGS / BV / TUV / Intertek inspections available before shipment.
All materials supplied with Mill Test Certificate (EN 10204 3.1 / 3.2).
Documentation Supplied
Mill Test Report
Heat Treatment Certificate
Dimensional Inspection Report
Packing List & Certificate of Origin
Looking for a reliable C17510 Beryllium Copper Alloy supplier and manufacturer?
We provide rods, plates, strips, and tubes in all tempers with global export support and competitive factory prices.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
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