QBe2 C17200 Harden Beryllium Copper Strip
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Shanghai Tankii Alloy Material Co., Ltd specializes in high-performance beryllium-copper alloys, ensuring compliance with all environmental regulations and industry standards. Our beryllium copper alloys combine copper with beryllium additions (0.4-2%) and other alloying elements to achieve superior mechanical properties through precipitation hardening.
Exceptional Material Properties
QBe2 beryllium copper represents the highest standard in copper alloy elasticity, offering outstanding strength, hardness, fatigue resistance, corrosion resistance, wear resistance, and electrical conductivity. The material is non-magnetic, spark-free, and maintains excellent performance across various environmental conditions.
Chemical Composition
| Grade |
Be |
Co |
Ni |
Cu |
Fe |
Al |
Si |
Pb |
Total Impurities |
| QBe2 |
1.8-2.1% |
/ |
0.2-0.25% |
Bal |
≤0.15% |
≤0.15% |
≤0.15% |
≤0.005% |
≤0.5% |
Physical Properties - C17200
| Property |
Value |
| Density (g/cm³) |
8.36 |
| Density Before Age Hardening (g/cm³) |
8.25 |
| Elastic Modulus (kg/mm² × 10³) |
13.40 |
| Thermal Expansion Coefficient (20°C to 200°C m/m/°C) |
17 × 10⁻⁶ |
| Thermal Conductivity (cal/(cm·s·°C)) |
0.25 |
| Melting Range (°C) |
870-980 |
Mechanical Properties - Before Heat Treatment
| Status |
Tensile Strength (kg/mm²) |
Hardness (HV) |
Conductivity (IACS%) |
Elongation (%) |
| H |
70-85 |
210-240 |
22 |
2-8 |
| 1/2H |
60-71 |
160-210 |
22 |
5-25 |
| 0 |
42-55 |
90-160 |
22 |
35-70 |
Mechanical Properties - After Heat Treatment
| Status |
Tensile Strength (kg/mm²) |
Hardness (HV) |
Conductivity (IACS%) |
Elongation (%) |
| H |
130-151 |
380-420 |
22 |
1-5 |
| 1/2H |
126-147 |
370-410 |
22 |
2-7 |
| 0 |
112-135 |
350-339 |
22 |
3-11 |
Key Features & Benefits
- High thermal conductivity for efficient heat dissipation
- Superior corrosion resistance, ideal for PVC product molds
- Exceptional hardness, wear resistance, and toughness
- Excellent polishing capability for high-precision mirror surfaces
- Easy welding and machining without additional heat treatment
![QBe2 C17200 Beryllium Copper Strip polished surface showing high-quality finish]()
