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CuNi20 Sheet (UNS C71000) for LV Circuit Breakers Shunt Resistor Grade
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제품 상세 정보:
결제 및 배송 조건:
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상세 제품 설명
| 애플리케이션: | 산업 | 재료: | C71000 |
|---|---|---|---|
| 모양: | 박 | 화학 성분: | Cu,Ni |
| 저항 (μω.m): | 0.49 | Ni (민): | 44% |
| 색상: | 밝은 은 | 치수: | 0.08*0.8mm |
CuNi20 Sheet (UNS C71000) for LV Circuit Breakers Shunt Resistor Grade
CuNi20 Sheet (UNS C71000) for Low-Voltage Circuit Breakers | ±30ppm TCR | 100kA Interrupt | IEC 60947/ASTM B122 Applications: Molded Case Breakers • EV Charging Contacts • Shunt Resistors • Busbar Terminals
MATERIAL TECHNOLOGY
Alloy Composition (ASTM B122):
- Cu 79-81% | Ni 18-20% | Fe 0.5-1.0% | Mn 0.3-0.8%
- Density: 8.94 g/cm³ | Melting Range: 1100-1150°C Critical Properties:
- Resistivity: 34 μΩ·cm at 20°C
- TCR: ±30 ppm/°C (0-150°C)
- Thermal Conductivity: 29 W/m·K
- Sulfide Resistance: Zero tarnishing at 150°C/1000hr
CERTIFIED PERFORMANCE
ELECTRICAL RELIABILITY
- Contact Resistance: <15 μΩ·cm² (IEC 60413)
- Arc Erosion Rate: 0.08 mm/1,000 ops at 1kV/10kA (IEC 60947)
- Resistance Stability: ΔR/R <0.05% after 50,000 interruptions
MECHANICAL DURABILITY
- Hardness: 110-140 HV (Hard Temper)
- Fatigue Strength: 180 MPa at 10^(7) cycles (ISO 1099)
- Thermal Shock: -40°C↔150°C × 500 cycles
DIMENSIONAL SPECIFICATIONS
Standard Sheet (ISO 9444):
- Thickness: 0.5–12.0 mm (±0. %)
- Width: 100–600 mm (±0.1 mm)
- Length: 500–2500 mm (±1 mm/m) Surface Treatments:
- Mill Finish (Ra 1.6 μm)
- Passivated (Cr^(3+) oxide layer)
- Tin/Silver Plated (IEC 60413 compliant)
BREAKER-SPECIFIC ENGINEERING
Contact Performance:
- Welding Resistance: ≥800 N/mm² (UL 489)
- Arc Mobility: 20% faster than pure copper
- Current Density: 100 A/mm² continuous Shunt Resistor Capability:
- Voltage Drop: 3.4 mV/A·m
- Thermal Derating: 0.4%/°C above 100°C
- Self-Inductance: <5 nH/cm
INDUSTRIAL VALIDATION
ELECTRIC VEHICLES:
- DC Fast Charger Breakers: 1,500V/20kA clearance
- 0% contact welding at -40°C cold switching INDUSTRIAL AUTOMATION:
- MCCB Contacts: 100kA interrupt at 440V AC (IEC 60947-2)
- Short-Circuit Withstand: 100kA/100ms (IEC 60898) RENEWABLE ENERGY:
- Solar Combiner Boxes: 85% humidity endurance (IEC 61730)
- Wind Farm Switchgear: 15G vibration resistance
Normal composition%
| Cu | Ni+Co | Zn | Pb | P | Fe | Mn | Si | Sb | S | C | Mg | |
| B19 | Bal. | 18.0-20.0 | ≤0.3 | ≤0.005 | ≤0.01 | ≤0.5 | ≤0.5 | ≤0.15 | ≤0.005 | ≤0.01 | ≤0.05 | ≤0.05 |
Typical Mechanical properties
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| ≥160 | ≥295 | ≥20 |
연락처 세부 사항
Ohmalloy Material Co.,Ltd
담당자: Mr. Qiu
전화 번호: +8613795230939
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