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OPTIMA
METALS
cube2

CuBe2, W.NR.  2.1247 DIN 17672 – C17200, CW101C, UBE 2,  C17300, RWMA: Class 4(IV)

Chemical Composition

CuBe2 - CW101C

Cu: Rest
Be: 1.80-2.20
Others: 0.5 Max

Mechanical Composition

CuBe2 - CW101C

Hardness: 320-380
Yield Strenght: 1000
Tensile Strenght: 1200
Elongation: 7

Applications of CuBe2

CuBe2 - CW101C

Space and aviation applications
Defense products applications
Plastic mold insert cooling part
Rim welding
Non-sparkling tools

Petrochemical applications

Mining Applications

Avaliable Forms of CuBe2

CuBe2 - CW101C

Flat bars
Round bars
Machined parts

Sheets

CuBe2, W.NR.  2.1247 DIN 17672 – C17200, CW101C, UBE 2,  C17300, RWMA: Class 4(IV)

CuBe2 (also known as Copper-Beryllium Alloy or C17200) is a high-performance copper alloy containing beryllium (Be) as the principal alloying element. It is widely regarded for its exceptional combination of high strength, hardness, fatigue resistance, and excellent thermal and electrical conductivity.

Specifications:

  1. High Strength and Hardness:

    • Tensile strength: 1100–1400 MPa (after aging).

    • Hardness: 300–400 HV.

    • Among the strongest copper alloys.

  2. Good Electrical and Thermal Conductivity:

    • Electrical conductivity: ~20–30% IACS (International Annealed Copper Standard).

    • Thermal conductivity: ~105 W/m·K.

  3. Outstanding Fatigue and Creep Resistance:

    • Ideal for components under cyclic or continuous stress.

  4. Corrosion Resistance:

    • High resistance to oxidation and corrosion in most environments.

  5. Non-Magnetic:

    • Suitable for sensitive applications requiring non-magnetic materials.

  6. Non-Sparking:

    • Safe for use in explosive or hazardous environments.

Applications:

CuBe2 is used in demanding industries and applications due to its unique combination of properties:

  • Aerospace:

    • Components requiring high strength-to-weight ratio and fatigue resistance.

  • Electronics:

    • Springs, connectors, and contacts in high-reliability electronic devices.

  • Oil and Gas:

    • Non-sparking tools and components for hazardous environments.

  • Automotive:

    • High-performance engine components, relay parts, and connectors.

  • Mold Making:

    • Inserts and cores in plastic injection molds due to its thermal conductivity and wear resistance.

Heat Treatment:

CuBe2 properties are optimized through heat treatment:

  1. Solution Annealing:

    • High-temperature treatment (~750–800°C) to dissolve alloying elements into the copper matrix.

  2. Quenching:

    • Rapid cooling to retain alloying elements in solution.

  3. Aging (Precipitation Hardening):

    • Controlled heating (~300–350°C) to form beryllium-copper precipitates, significantly increasing strength and hardness.

Standards and Norms:

CuBe2 is standardized under various international norms:

  1. UNS (Unified Numbering System):

    • C17200 (U.S. designation).

  2. EN Standards (European Norms):

    • EN 1654 and EN 12163 (designated as CW101C).

  3. ASTM (American Society for Testing and Materials):

    • ASTM B196: Rods and bars.

    • ASTM B194: Plate, sheet, strip, and rolled bar.

  4. DIN (German Standards):

    • Designated as 2.1247.

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