C17200 Beryllium Copper Round Bar
Grade: UNS C17200 / CuBe2 / Alloy 25
Compliance Standards: Manufactured strictly per ASTM B196
Size Range: Diameter 2mm - 200mm, Custom Lengths Available
Temper Conditions: Solution Annealed (TB00), Age-Hardened (TF00), or Cold Worked & Aged (TH04)
Core Performance: High Tensile Strength, Wear & Corrosion Resistance
Quality Assurance: ISO9001:2015, RoHS Compliant, MTC 3.1 Certified
Description
C17200 Beryllium Copper Round Bar Manufacturer
C17200 Beryllium Copper Round Bar is a common copper alloy also known as Alloy 25 with 1.8 to 2.0 percent beryllium and more than 0.20 percent cobalt and nickel. It possesses stable mechanical and conductivity property after ageing treatment.Dongguan Jiaye Dingsheng was formed in 1997. The rods are manufactured by vacuum melting and precise heat treatment. Tensile strength is 1100-1300 MPa, hardness is 36-42 HRC, conductivity is 22-25% IACS. This material is perfect for resistance welding, EDM processing and production of precision mould components.
What Is C17200 Beryllium Copper Round Bar?
The most common grade of beryllium copper in the industry is Alloy 25. It contains 1.80 to 2.00% beryllium, balance copper, and at least 0.20% cobalt + nickel.
This combination provides the strength levels of the alloy to be similar to high alloy steel, but with the distinctive thermal and electrical properties of copper. Used consistently, that combination will be equivalent to no steel or brass.
The round bar shape is the most versatile C17200 Beryllium Copper Round Bar form. It is suited for turning, milling, drilling and centerless grinding and therefore a direct input material for CNC machined parts in a broad variety of industries.
Chemical Composition
| Element | Content |
|---|---|
| Beryllium (Be) | 1.80 – 2.00% |
| Cobalt + Nickel (Co+Ni) | Min 0.20% |
| Copper (Cu) | Balance |
Chemical composition is verified by OES analysis at both raw material intake and final inspection. Every batch is traceable back to its heat lot number.
Mechanical & Physical Properties
| Property | Value |
|---|---|
| Tensile Strength | 1110 – 1320 MPa |
| Yield Strength | 950 – 1150 MPa |
| Hardness (Aged) | 36 – 42 HRC / 350 – 420 HV |
| Electrical Conductivity | 22 – 25% IACS |
| Thermal Conductivity | 105 W/m·K |
| Tolerance Grade | h8 – h11 (precision cold drawn / ground) |
Key Performance Advantages
Thermal stability: 350°C softening temperature stabilises the shape of the electrode throughout a number of welding cycles.
Specific physical properties: Non spark, non magnetic, suited for oil, gas and aviation operating situations.
Wear and galling resistance Reduces friction loss of sliding components and extends service life over conventional copper.
Stable EDM processing effect: The high precision processing of electric discharge machining may retain the sharp edges and fine structures complete.
Size Range & Customization
| Parameter | Details |
|---|---|
| Diameter Range | 2 mm – 200 mm |
| Length | Standard or custom cut |
| Surface Finish | As-drawn, ground, or machined |
| Tolerance Grade | h8 – h11 |
| Custom Temper | TB00 / TF00 / TH04 on request |
Custom diameters, lengths, and hardness targets are available. CNC-machined components can be produced directly from round bar stock on request.
Typical Applications
C17200 round bar is utilised in a wide range of demanding industries:
- Mould Manufacture: Cavity inserts and core pins where high hardness and rapid heat transfer is needed
- Resistance Welding Electrodes, holders and tips that must carry heat while resisting deformation
- Aerospace: Bushings, bearing housings, non-magnetic fasteners.
- Precision Electronics Connector springs Relay contact arms Switch parts
- Oil & Gas: Non-sparking drill collars, valve parts and downhole instruments
Quality Control & Certification
Every manufacturing batch is subjected to a three-stage inspection:
- Incoming Inspection: OES chemical analysis verifies beryllium and cobalt levels are within the limits of ASTM B196.
- In-Process Monitoring: Temperature of rolls, reduction ratios and heat treatment parameters are recorded for every batch.
- Final Inspection: Rockwell/Vickers hardness test, dimensional measurement, tensile test as necessary.
All shipments are accompanied by a Mill Test Certificate (MTC) in accordance with EN 10204 3.1, specifying chemical composition, hardness and conductivity characteristics. The firm is ISO 9001 certified and its C17200 Beryllium Copper Round Bar are RoHS and REACH compliant.
FAQ
Q1: What is the difference between C17200 and C17500 electrodes?
A1: C17200 has higher hardness for heavy-duty welding, while C17500 features higher conductivity for conventional electrical contact parts.
Q2: Is the material safe for machining?
A2: Solid rods are safe to handle. Professional ventilation and dust filtration equipment are required during grinding and welding.
Q3: Is C17200 applicable for EDM processing?
A3: Yes, it maintains stable precision and fine structural integrity, suitable for high-precision EDM machining scenarios.
Q4: How to achieve the best material performance?
A4: Complete solution annealing first, then aging treatment at 315°C for 2–3 hours to stabilize comprehensive properties.
Q5: What causes electrode wear failure?
A5: Excessive aging treatment or operating temperature exceeding 350°C will accelerate wear; stable cooling is required during use.
Q6: Are test certificates available?
A6: Each order is equipped with EN 10204 3.1 MTC reports covering composition, hardness, conductivity and dimensional data.
Contact Us
Submit your size specifications and technical demands of C17200 Beryllium Copper Round Bar to js01@jstongcai.com.cn, and our team will send professional quotations and technical replies within 24 hours.
