Elastic alloy

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Precision elastic alloys are a class of functional materials that combine extremely high strength, excellent elastic properties and excellent durability. These alloys (such as cobalt-based elastic alloys, beryllium bronze and constant elastic alloys, etc.) can maintain stable elastic modulus in harsh environments and are widely used in various precision instruments, sensors, aerospace components and medical devices.

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QBe2 Beryllium Copper

Jiangsu DZX Technology Co., Ltd. supplies high-quality QBe2 (BrB2) beryllium bronze, covering wire, plate, strip, rod and tube. The product has extremely high hardness, elastic limit and excellent wear and corrosion resistance. Direct sales from Jiangsu manufacturers, spot supply, fast delivery nationwide, and professional technical parameter support.

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Beryllium Copper Alloy

QBe2

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✓ ISO 9001 Quality
✓ COC & Test Certificates
✓ Established in 2002
✓ OEM & Custom Sizes
Specifications
  • Plate / Sheet

    Plate / Sheet

    Thickness: 0.1mm-5.0mm
    Width: 50mm-1000mm
    Length: 500mm-3000mm
  • Strip

    Strip

    Thickness: 0.02mm-1.5mm
    Width: 3mm-500mm
    Delivery Forms: Bright shiny, cold rolled or hot rolled
  • Rod

    Rod

    Diameter: Ø5mm-Ø80mm
    Length: 100mm-2000mm
  • Wire

    Wire

    Diameter: Ø0.03mm-Ø5mm
    Delivery Forms: Bright shiny, supplied in spools
  • Tube

    Tube

    Outer Diameter: Ø3mm-Ø100mm
    Wall Thickness: 0.5mm-10mm
    Length: 100mm-6000mm
Physical & Mechanical Properties
  • Alloy Grade: QBe2 (Constant Elasticity)
  • Density (g/cm³): 8.3
  • Electrical Resistivity (10⁻⁶ Ω•cm): 120
  • Thermal Conductivity (W/m•K): 40
  • Modulus of Elasticity (GPa): 125
  • Yield Strength (MPa): 300
  • Tensile Strength (MPa): 600
  • Elongation at Break (%): 20
  • Elastic Limit (MPa): 300
  • Fatigue Life (cycles): >10⁷
  • Working Temperature Range (°C): -40 to 150
  • Temperature Coefficient: Elasticity remains constant with minimal temperature sensitivity
Supply Capability
ItemDetails
Lead TimeSamples 5-10 days; production 15-30 days
MOQSmall trial orders accepted
SamplesAvailable on request
PackagingExport-standard coil spools / wooden cases
CertificateCOC with chemical composition analysis
PaymentT/T, L/C
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Project Support

Need this alloy for a demanding application?

Real-world qualification for the Precision Instruments sector: tight tolerances, batch consistency and on-time delivery.

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Frequently Asked Questions (FAQ)

What type of elastic material does QBe2 belong to, and why does the page classify it as constant elasticity?

QBe2 (Russian standard BrB2) is beryllium bronze, which is classified as a constant elastic material: high elastic stability and extremely low temperature sensitivity. The elastic modulus is 125 GPa and the elastic limit is 300 MPa. It is strengthened by precipitation through heat treatment. It has good strength, hardness, wear resistance and fatigue resistance. It is suitable for parts such as diaphragms and precision contacts that require elasticity without drift.

QBe2 (Russian standard BrB2) is beryllium bronze, which is classified as a constant elastic material: high elastic stability and extremely low temperature sensitivity. The elastic modulus is 125 GPa and the elastic limit is 300 MPa. It is strengthened by precipitation through heat treatment. It has good strength, hardness, wear resistance and fatigue resistance. It is suitable for parts such as diaphragms and precision contacts that require elasticity without drift.

QBe2 (Russian standard BrB2) is beryllium bronze, which is classified as a constant elastic material: high elastic stability and extremely low temperature sensitivity. The elastic modulus is 125 GPa and the elastic limit is 300 MPa. It is strengthened by precipitation through heat treatment. It has good strength, hardness, wear resistance and fatigue resistance. It is suitable for parts such as diaphragms and precision contacts that require elasticity without drift.

Beryllium bronze is a special copper alloy and can be reported as QBe2 or BrB2. Wire, ribbon, rod, plate and tube are all available: foil thickness 0.02-1.5 mm, wire diameter 0.03-5 mm, bright coil, rod 5-80 mm, plate thickness 0.1-5.0 mm. Soft state, hard state, and aging state are available. The aging state directly determines the final flexibility. It is more stable to clearly state the purpose when placing an order.

Page positioning is the answer: constant elasticity, extremely low temperature sensitivity, elasticity does not drift with the environment; resistivity 120×10⁻⁶ Ω·cm with thermal conductivity 40 W/(m·K), suitable resistance and fast heat dissipation; fatigue exceeding 10⁷, elastic limit 300 MPa, repeated on and off without collapse, and also wear-resistant and anti-relaxation, so it is popular in the micro relay and electrical contact industries.

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