C17500 Beryllium Copper

Strip: ASTM B 534-07, MILITARY MIL-C-81021, B 888
Sheet: ASTM B 534-07, B 888
Rod: ASTM B 441-04, ASTM B 534, SAE J463, J461, BS 2872, BS 2874
Tube: ASTM B 937, SAE J463, J461
Profile: ASTM B 870-08, SAE J463, J461 BS 2874
Forgings: ASTM B 870-08, ASTM B 938

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Product Introduction

Beryllium copper, also known as beryllium-cobalt copper, is a high-performance copper-based alloy whose core components are copper, beryllium, and cobalt. Sources indicate slightly varying compositional ratios: copper is approximately 93.5%, beryllium ranges from 0.4% to 2.5%, and cobalt ranges from 2.4% to 4.8%. After solution aging heat treatment, this material achieves high strength, hardness, and excellent electrical conductivity, representing a representative copper alloy with exceptional overall performance.

Chemical Composition

Element	Content (%)
Copper (Cu)	97.0 - 98.2
Beryllium (Be)	0.4 - 0.7
Cobalt (Co)	2.4 - 2.7
Others (Total)	≤ 0.5

Mechanical Properties (Typical)

Condition	Tensile Strength	Yield Strength (0.2%)	Elongation (%)	Hardness	Conductivity (% IACS)
Solution Annealed	345 - 480 MPa	140 - 275 MPa	35 - 50	B40 - B65	50 - 55
Peak Aged	620 - 790 MPa	415 - 690 MPa	5 - 15	B90 - C32	45 - 50

Equivalent Grades

Standard	Grade
UNS	C17500
CDA	175
ASTM	B196
AMS	4655
DIN	2.1285 / CuCo2Be

C17500 Beryllium Copper's Main Applications

Electronics Industry

Used in high-end connectors, contacts, heat sinks, and resistance welding electrodes, its stable electrical properties enhance equipment reliability.

Mold Manufacturing

Used in injection molds, die-casting mold inserts, and cores. Its high thermal conductivity (3-4 times higher than mold steel) shortens product cooling cycles and reduces deformation.

Specialty Industries

Used in ship piping, alumina production equipment, explosion-proof tools, and aerospace components, leveraging its corrosion resistance and non-magnetic properties.

Precision Components

Applications requiring a balance between strength and conductivity, such as fuse fasteners, springs, brush pins, and bearings.

Processing and Usage Precautions

Processing

Forming is possible through forging, rolling, extrusion, casting, and other methods. However, due to its high hardness, specialized tools and cutting parameters are required.

Heat Treatment Taboos

Temperature must be controlled during welding or other high-temperature operations to avoid a decrease in hardness and conductivity.

Safety Regulations

The material is non-magnetic and must be securely fastened before processing. Finished products must be promptly treated with rust prevention to prevent oxidation.

Why Choose Us as Your C17500 Supplier?

Choosing a metal supplier is about more than just material-it's about trust, consistency, and technical partnership.

Uncompromising Quality & Full Traceability

Every batch of our C17500 Beryllium Copper comes with a complete Material Test Certificate (MTC/MTR) compliant with EN 10204 3.1/3.2. This is not an option; it's our standard. We provide full traceability from melt to final shipment.

Rigorous Quality Control & Independent Verification

Our in-house quality lab is just the first step. We partner with leading third-party inspectors like SGS, TÜV, and Bureau Veritas to validate our material's chemical and mechanical properties. Ultrasonic testing (UT) is available to ensure internal soundness for critical applications.

A Global Trusted Partner

We are proud to be the preferred supplier for over 1,000 clients across the globe, including leading manufacturers in:

Europe: Italy, Poland, France, the UK, Germany, Turkey.

Americas: USA, Mexico.

Asia: India, South Korea, Japan.

Our 85% client retention rate with consistent repeat orders is a testament to our reliability, product quality, and customer service.

Ready to Elevate Your Product with Genuine, Certified C17500?
Don't leave the performance of your critical components to chance. Partner with a C17500 Beryllium Copper supplier who guarantees material integrity and provides the documentation to prove it.

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