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GB | ISO | ASTM | JIS |
QBe2 | CuBe2 | C17200 | C1720 |
QBe1.9 | CuBe2 | - | - |
GB | Chemical Composition(%) | ||||||
Al | Fe | Pb | Be | Ni | Si | Cu | |
QBe2 | 0.15 | 0.15 | 0.005 | 1.8-2.1 | 0.2-0.5 | 0.15 | Balance |
QBe1.9 | 0.15 | 0.15 | 0.005 | 1.85-2.1 | 0.2-0.4 | 0.15 | Balance |
ASTM | Chemical Composition(%) | ||||||
Fe | Ni | Co | Be | Cu | |||
C17200 | Ni+Co+Fe0.6 | no less than 0.2 | 1.8-2.0 | no less than 99.50 |
Grade (GB) | Tensile Strength /Mpa | Proportion (g/cm3) | Yield Strength(0.2%)Mpa | Softening Point(℃) | |
1105 | 8.3 | 1035 | 930 | ||
QBe2 | Elongation(%) | Elasticity Modulus/Gpa | Hardness /HRC | Heat Conductivity (W/m.k20℃) | Electrical Conductivity (IACS%) |
1 | 128 | 38-44 | 105 | 18 |
Mechanical property:(before heat treatment)
status | Tensile strength (N/mm2) | Hardness (HV) | Conductivity ( IACS%) | Elongation (%) |
0 | 410-540 | 90-160 | ≥17 | 35-70 |
1/4H | 510-620 | 145-220 | ≥16 | 10-35 |
1/2H | 590-695 | 180-240 | ≥15 | 5-25 |
H | 685-835 | 210-270 | ≥15 | 2-8 |
Mechanical property:(after heat treatment)
status | Tensile strength (N/mm2) | Hardness (HV) | Conductivity (IACS%) | Elongation (%) |
0T | 1100-1380 | 325-400 | ≥22 | 3-11 |
1/4HT | 1180-1400 | 350-430 | ≥22 | 2-8 |
1/2HT | 1240-1440 | 360-440 | ≥22 | 2-7 |
HT | 1270-1480 | 380-450 | ≥22 | 1-5 |
Special Processing
State | Tensile strength (N/mm2) | Hardness (HV) | Conductivity (IACS%) | Elongation (%) |
OM | 685-885 | 220-270 | ≥17 | ≥18 |
1/4HM | 735-930 | 235-285 | ≥17 | ≥10 |
1/2HM | 815-1010 | 260-310 | ≥17 | ≥8 |
HM | 910-1110 | 295-345 | ≥17 | ≥6 |
XHM | 1100-1290 | 340-390 | ≥17 | ≥2 |
XHMS | 1210-1400 | 360-410 | ≥17 | ≥2 |
Beryllium copper is based on beryllium as the main alloy of copper alloy, also known as beryllium bronze. It is the best performance of copper alloy in the high-performance elastic material, a high strength, flexibility, hardness, fatigue strength, elastic lag small, corrosion resistance, wear resistance, cold, high conductivity, non-magnetic, impact does not produce sparks A series of excellent physical, chemical and mechanical properties. Beryllium copper tape used in micro-motor brush, cell phone, battery.