Bright Annealed Cr20Ni80 Nichrome 80 20 Wire 0.02mm Ultra Thin Nickel Chrome
Basic Properties
Trading Properties
| Name: | Nichrome Wire | Material: | Nichrome (Nickel-Chromium Alloy) |
|---|---|---|---|
| Shape: | Round Wire | Diameter: | 0.02mm To 2mm |
| Use: | Scientific Research | Condition: | Soft Annealed |
| Flexiblity: | Moderate | Color: | Silver-grey |
| Highlight | Bright Annealed Nichrome 80 Wire,Cr20Ni80 Ultra Thin Nichrome Wire,0.02mm Nickel Chrome Wire |
||
- High Electrical Resistivity
- Excellent Oxidation Resistance
- Low Temperature Coefficient of Resistance
- Annealed Soft Temper
- Ultra fine diameter
Accelerate experiments with our high‑purity Nichrome filament, drawn to sub‑millimeter diameters for lab use. Ideal for thin‑film evaporation, thermal analysis, or reaction vessels, it offers reproducible electrical characteristics for scientific validity. Low vapor pressure and stable composition minimize contamination in high‑vacuum. Each spool has exceptional surface quality, defect‑free, for critical research. Its consistent resistance ensures repeatable results across multiple tests. This wire supports precise temperature ramping. Rely on this precision tool for accurate thermal stimulation in demanding analytical procedures.
| 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 |
- 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.


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