C17510 Beryllium Nickel Copper Rod
Grade: UNS C18150 / CuCr1Zr / CDA 181.5 / DIN 2.1293 / CW106C
Standard: RWMA Class 2 (AWS J1.3), ASTM C18150
Origin: China (Factory Direct Supply)
Diameter: 2.0mm - 250mm
Length: 1000mm - 3000mm or Custom Cut
Available Tempers: Solution Annealed & Aged TF00 (mill-hardened, no further heat treatment required)
Key Advantage: Beryllium-free eco-friendly alloy with 80%+ IACS conductivity and 500°C+ softening resistance
Custom cutting and precision machining services available
Material certificates
Description
C17510 Beryllium Nickel Copper Rod for Resistance Welding & High-Conductivity Industrial Applications
C17510 Beryllium Nickel Copper Rod is a precipitation-hardened copper alloy containing 0.2–0.6% beryllium and 1.4–2.2% nickel. Manufactured by Dongguan Jiaye Dingsheng with 25+ years of production experience, this RWMA Class 3 material balances mechanical strength and conductive performance. It delivers 45–60% IACS conductivity, 690–960 MPa tensile strength and stable performance up to 480°C. Available in 2–250mm diameters and customizable lengths, stock products ship fast with complete MTC test reports for full batch traceability.
What Is C17510 Beryllium Nickel Copper Rod?
C17510 Beryllium Nickel Copper Rod is classified under ASTM B441 and RWMA Class 3. It belongs to the nickel-bearing beryllium copper family, distinct from cobalt-bearing C17500.
The nickel addition promotes nickel beryllide precipitation during age hardening. This produces a finer grain structure compared to C17500, which directly improves dimensional consistency in long rod formats.
This alloy solves a specific engineering conflict: standard electrolytic copper softens under thermal cycling, while high-strength C17200 lacks sufficient conductivity. C17510 occupies the middle ground — approximately 50% IACS conductivity versus C17200's 20% IACS, with hardness reaching 92–102 HRB after age hardening.
Technical Specifications
| Property | Value |
|---|---|
| Standard | ASTM B441 / RWMA Class 3 |
| Beryllium Content | 0.2 – 0.6% |
| Nickel Content | 1.4 – 2.2% |
| Electrical Conductivity | 45 – 60% IACS |
| Thermal Conductivity | ~200 W/m·K |
| Tensile Strength (aged) | 690 – 960 MPa |
| Hardness (aged) | 92 – 102 HRB |
| Softening Temperature | Up to 480°C (896°F) |
| Diameter Range | 2.0 mm – 250 mm |
| Length | 1000 mm – 3000 mm or custom cut |
| Available Temper | Solution Annealed & Aged (TF00) |
Key Material Properties
-
Stable thermal performance: Standard thermal conductivity realizes fast heat dissipation to adapt to repeated thermal cycling work.
-
High temperature stability: Maintains stable hardness and structure at 480°C, avoiding softening failure in continuous production.
-
Stable machining performance: Uniform grain structure ensures consistent tolerance and stable processing effect after finishing.
-
Basic environmental adaptability: Features anti-galling property and stable performance in conventional marine working environments.
Application Areas
Resistance Welding Electrodes
C17510 Beryllium Nickel Copper Rod is the standard material for RWMA Class 3 spot and seam welding electrodes. It withstands the combination of high clamping pressure and repeated thermal shock when welding stainless steel and high-resistance alloys.
Plastic Injection Mold Components
Core pins and mold inserts machined from this rod remove heat rapidly from hot spots in injection molds. This reduces cycle times and improves part dimensional stability — a measurable production benefit.
Power Electronics and Aerospace Connectors
In high-stress environments, this material is machined into electrical connectors and switchgear components. The 45–60% IACS conductivity keeps contact resistance low, preventing thermal runaway under sustained high current loads.

Quality Control Process
Every C17510 rod produced passes through a five-stage inspection protocol aligned with aerospace and industrial specifications.
| Inspection Stage | Method |
|---|---|
| Chemical Composition | Optical Emission Spectroscopy (OES) — Be and Ni verified |
| Electrical Conductivity | Eddy current testing — minimum IACS confirmed |
| Mechanical Properties | Tensile testing + Rockwell hardness after age hardening |
| Internal Integrity | Ultrasonic NDT — voids, inclusions, and cracks detected |
| Dimensional Accuracy | Diameter and straightness per ASTM B441 tolerances |
Each shipment includes a Mill Test Certificate documenting chemical composition, hardness values, and conductivity results. Full material traceability is maintained from raw material batch through final delivery.
Custom Manufacturing & Supply Options
We support custom size cutting, heat treatment parameter adjustment and CNC finishing services. In-stock products ship in 3–5 days, custom orders support 24-hour quotation response, with complete export logistics and customs document services.
Handling and Machining Notes
In solid form, C17510 presents no health risk during storage or standard handling. Machining operations that generate fine dust or airborne particles require proper ventilation systems and PPE in compliance with OSHA beryllium safety standards.
Carbide tooling is recommended for machining in the hardened (TF00) condition. Appropriate coolant application manages heat buildup and extends tool life. Your machinist should treat this material similarly to other hardened copper alloys — not like standard free-machining brass.

FAQ
Q1: How is C17510 different from C17200 beryllium copper?
A1: C17510 has around 50% IACS conductivity against 20% IACS for C17200. While C17200 can achieve greater peak hardness, C17510 is the material of choice if electrical and thermal transmission are the key design considerations, with appropriate strength.
Q2: Can C17510 be machined after it has been aged?
A2: Yes. Carbide tooling and enough coolant are used. The 92–102 HRB hardness is controllable with the right setup, and the nickel beryllide grain structure allows for consistent material removal.
Q3: Is C17510 RWMA compliant?
A3: Yes. It is RWMA Class 3 copper, particularly suitable for high-pressure spot and seam welding electrode applications.
Q4: What is the maximum operating temperature?
A4: C17510 preserves its hardness and structural qualities up to around 480°C (896°F), making it ideal for prolonged high-temperature industrial cycles.
Q5: What documentation is included with each order?
A5: Every shipment comes with a Mill Test Certificate (MTC) showing chemical composition, hardness and conductivity. The product is made in accordance with ISO 9001 and conforms with RoHS and REACH.
Contact Us
Send your drawings and customized technical requirements of C17510 Beryllium Nickel Copper Rod to js01@jstongcai.com.cn, and our team will provide professional quotations and technical replies within 24 hours.