C17300 Leaded Beryllium Copper Rod
Grade: UNS C17510 / CuNi2Be / Alloy 3 / CW110C / DIN 2.0850
Standard: ASTM B441, ASTM B534, SAE J461, SAE J463, RWMA Class 3
Diameter: 2mm - 200mm
Length: 500mm - 2000mm or Custom Cut
Origin: China (Factory Direct Supply)
Available Tempers: Solution Annealed (TB00 / A), Age Hardened (TF00 / AT), Cold Drawn (TD04), 1/4 Hard & Age Hardened (TH04)
Key Advantage: Cost-effective alternative to C17500 with comparable conductivity and strength
Custom cutting and precision machining services available
Material certificates and third-party inspection reports provided
Description
C17300 Leaded Beryllium Copper Rod for High-Precision Machining Applications
C17300 Leaded Beryllium Copper Rod is a precipitation-hardened copper alloy that possesses the mechanical strength of standard beryllium copper. The addition of a regulated amount of lead to the alloy ranges from 0.2% to 0.6%. This lead content increases the machinability grade to 50 (in contrast to Free Cutting Brass at 100), which allows for finer surface finishes and higher spindle speeds. Before being dispatched, each rod undergoes vacuum melting, precision rolling, thermal treatment, and chemical verification by OES.
Dongguan Jiaye Dingsheng Precision Casting & Forging Co., Ltd. was established in 1997 and has a wealth of experience in the field of copper alloys, spanning over 25 years.
What Makes C17300 Different from Standard Beryllium Copper?
The C17300 Leaded Beryllium Copper Rod is composed of the same fundamental chemistry as C17200, with the addition of 1.8 to 2.0 percent beryllium.The sole difference is the increase in lead content from 0.2% to 0.6%.
This incorporation of lead enables the clean breakage of chips in high-speed CNC turning. Conventional beryllium copper produces long, stringy chips that contribute to tool wear and cycle time in the absence of it.
The result is a free-machining alloy which preserves the entire mechanical capabilities of C17200 after age hardening, without any loss of dimensional accuracy.
Chemical Composition
| Element | Content |
|---|---|
| Beryllium (Be) | 1.8% – 2.0% |
| Lead (Pb) | 0.2% – 0.6% |
| Copper (Cu) + Be + Additives | ≥ 99.5% |
| Nickel + Cobalt (min.) | 0.20% |
Mechanical & Physical Properties
| Property | Value |
|---|---|
| Tensile Strength (TH04 temper) | 165–190 ksi (1140–1310 MPa) |
| Rockwell Hardness | C36–C45 |
| Electrical Conductivity | 17%–25% IACS |
| Machinability Rating | 50 (vs. Free Cutting Brass = 100) |
| Density | 8.26 g/cm³ |
| Modulus of Elasticity | 128 GPa |
Available Specifications & Tempers
| Parameter | Details |
|---|---|
| Diameter | 2 mm – 200 mm |
| Length | 500 mm – 2000 mm or custom cut |
| Standards | ASTM B196/B196M, AMS 4533/4534 |
| Grade / UNS | C17300 |
| Available Tempers | Annealed (A), Age Hardened (AT/TF00), Cold Drawn (TD04), 1/4 Hard + Age Hardened (TH04) |
Custom lengths, diameters, and machined components are available on request.
C17300 Leaded Beryllium Copper Rod Performance Advantages
Cyclic stress resistance:High tensile strength can withstand repeated mechanical load for long-term stable operation.
Non-magnetic and spark-proof. Suitable for use in flammable, explosive and precise electronic working settings.
Stable conductive performance: Meets signal transmission demands of miniature contacts and sensor components.
Stable structural performance: Resists stress relaxation to maintain stable contact force and dimensional tolerance.
Application Scenarios
It is widely used for aerospace precision contacts, 5G telecom miniature spring parts and automotive electronic sensors and fuel injection components. With good machinability and stability, it fits mass production of mechanical bushings and fasteners, and also applies to non-magnetic high-pressure and high-temperature downhole drilling tools.
Quality Control & Certifications
We implement three-stage full-process quality inspection. Each batch undergoes component analysis, hardness testing and dimensional calibration. All shipments are equipped with complete MTC reports. The factory holds ISO 9001 certification, and products comply with RoHS and REACH environmental standards.
Machining & Safety Guidance
Solid rods are safe for daily storage and handling. Flood coolant and ventilation equipment are required during machining to control dust. Welding processing is not recommended, and mechanical assembly or professional brazing is adopted instead.
FAQ
Q1: Is secondary heat treatment supported?
A1: Yes, conventional annealed and cold-drawn materials can be aged to reach peak hardness.
Q2: What is the difference between C17300 and C17200?
A2: C17300 adds lead to improve machinability, with basically consistent mechanical properties after heat treatment.
Q3: Are custom sizes available?
A3: Custom diameter, length and finished precision machining services are all supported.
Q4: What qualification documents can be provided?
A4: Complete MTC test reports are provided, with third-party inspection documents available on request.
Q5: What is the order delivery cycle?
A5: In-stock products ship in 3–5 days, and custom orders support 24-hour quotation response.
Q6: Does lead affect conductive performance?
A6: Lead content has little impact on conductivity, which remains stable at 17%–25% IACS.
Contact Us
Send your detailed size parameters and application requirements of C17300 Leaded Beryllium Copper Rod to js01@jstongcai.com.cn, and our team will provide professional quotations and technical support within 24 hours.
