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NiCr Nichrome Wire Cr20Ni80 Cr30Ni70 Cr15Ni60 Cr20Ni35 Alloy For Heating Element
Basic Properties
Trading Properties
| Name: | Nichrome Wire | Material: | NiCr Alloy |
|---|---|---|---|
| Size Range: | 0.02mm To 2mm | Condition: | Annealed |
| Surface: | Bright | Resistance: | High Resistance |
| Tensile Strength: | High Tensile Strength | Application: | Heating Element |
| Highlight | Cr20Ni80 Cr30Ni70 Nichrome Wire,NiCr Alloy Heating Wire,Multi Grade Nickel Chrome Wire |
||
Features:
- High Electrical Resistivity
- Excellent Oxidation Resistance
- Low Temperature Coefficient of Resistance
- Annealed Soft Temper
- Ultra fine diameter
Description:
This resistance wire features exceptional hot hardness and negligible aging drift. Ideal for laboratory furnaces, it provides reproducible thermal profiles. The alloy’s homogeneity minimizes localized corrosion, and its melting point near 1400°C offers a safe margin for continuous 1100°C operation.
Specifications:
| Material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
|---|---|---|---|---|---|---|
| Ni | 90 | Rest | Rest | 55.0 – 61.0 | 34.0 – 37.0 | 30.0 – 34.0 |
| Cr | 10 | 20.0 – 23.0 | 28.0 – 31.0 | 15.0 – 18.0 | 18.0 – 21.0 | 18.0 – 21.0 |
| Fe | / | ≤1.0 | ≤1.0 | Rest | Rest | Rest |
| Maximum temperature °C | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Melting point °C | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Density g/cm³ | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
| Resistivity µΩ·m, 20°C | 1.09 ± 0.05 | 1.18 ± 0.05 | 1.12± 0.05 | 1.00 ± 0.05 | 1.04 ± 0.05 | 1.0 ± 0.05 |
| Elongation at rupture % | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Specific heat J/g·°C | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | 0.5 |
| Thermal conductivity KJ/m·h·°C | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | 43.8 |
| Micrographic structure | Austenite | Austenite | Austenite | Austenite | Austenite | Austenite |
| Magnetic properties | Nonmagnetic | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic | Weak magnetic |
Applications:
- Heating Elements: Electric furnaces, industrial ovens, heat treatment equipment, kilns, and cartridge heaters.
- Household Appliances: Toasters, hair dryers, electric irons, water heaters, and rice cookers.
- Electronics: Wire‑wound resistors, rheostats, load banks, and precision potentiometers.
- Aerospace & Defense: De‑icing systems, high‑temperature sensor leads, and engine ignition components.
- Laboratory Equipment: Muffle furnaces, tube furnaces, heating mantles, and thermal analyzers.
- Automotive: Glow plugs, heated mirrors, seat heaters, and exhaust gas sensors.
FAQ
Q1: Which grade should I choose for my application?
A: For maximum operating temperature up to 1300°C, choose Cr10Ni90. For general heating elements up to 1200°C, Cr20Ni80 is the industry standard. For cost sensitive projects with lower temperature requirements (≤1100°C), consider Cr20Ni35 or Cr20Ni30.
Q2: Can I get a sample before bulk order?
A: Yes, free samples of any grade are available upon request if in stock. You only pay shipping.
Q3: What is the lead time?
A: Samples ready in 2–3 days. Mass production takes 7–20 working days depending on quantity and grade.
Q4: Is there a minimum order quantity (MOQ)?
A: MOQ is 5 kgs.
Q5: How do you prevent the wire from tangling during shipping?
A: We wind on anti static plastic spools and seal in protective boxes. Each spool is inspected under magnification.
Q6: Do you offer a warranty?
A: Yes, 12 month warranty against manufacturing defects. Mill Test Reports (MTRs) are available with full batch traceability.
Contact Person: Mr. Jason
Tel: 86--13776839060
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