5s
+1
Submission successful!
|
| Brand Name: | DLX |
| Model Number: | Nichrome Wire Cr20Ni30 |
| MOQ: | 10kg |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability: | 500 tons per month |
Engineering Overview: Cr20Ni30 in Hydrogen Production
Cr20Ni30 is an austenitic Nickel-Chromium-Iron (Ni-Cr-Fe) electrical resistance alloy optimized for high-temperature thermal management in advanced hydrogen generation systems. With a nominal composition of 30% Nickel, 20% Chromium, and balanced Iron, Cr20Ni30 delivers stable electrical resistivity (1.04 μΩ·m), high hot strength, and reliable oxidation resistance at operating temperatures up to 1,100°C (2,012°F).
In Solid Oxide Electrolysis Cell (SOEC) systems and high-temperature water splitting plants, operating temperatures between 650°C and 850°C are required to achieve high electrical efficiency. Cr20Ni30 alloy wire serves as the premier heating element material for steam superheating modules, electrolyzer stack thermal management, and balance-of-plant (BOP) gas preheaters, ensuring stable heat input with minimal degradation under rigorous thermal cycling.
| Performance / 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 ℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Melting point ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Density g/cm³ | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
| Resistivity at 20℃ (μΩ*m) | -- | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
| Elongation at rupture | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Specific heat (J/g.℃) | -- | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
| Thermal conductivity (KJ/m.h℃) | -- | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
| Coefficient of linear expansion a×10⁻⁶/(20~1000℃) | -- | 18 | 17 | 17 | 19 | 19 |
| Micrographic structure | -- | Austenite | Austenite | Austenite | Austenite | Austenite |
| Magnetic properties | -- | Non-magnetic | Non-magnetic | Non-magnetic | Weak magnetic | Weak magnetic |
| Shape | Size (mm) |
|---|---|
| Wire | 0.05-7.5 |
| Rod | 8-50 |
| Ribbon | (0.05-0.35)×(0.5-6.0) |
| Strip | (0.5-2.5)×(5-40) |
| Property Parameter | Typical Value (Metric) | Typical Value (Imperial) | Test Method |
|---|---|---|---|
| Microstructure | Austenitic (Non-magnetic) | - | Metallographic |
| Electrical Resistivity at 20°C | 1.04 +/- 0.05 μΩ·m | 625 Ω·cmf | ASTM B63 / GB/T 1234 |
| Density | 7.90 g/cm³ | 0.285 lb/in³ | ASTM B311 |
| Melting Point | 1,390°C | 2,534°F | Thermal Analysis |
| Max Continuous Working Temp | 1,100°C | 2,012°F | In Air Atmosphere |
| Tensile Strength (Annealed State) | >= 600 MPa | >= 87 ksi | ASTM E8 |
| Elongation at Break (A100) | >= 20% | >= 20% | ASTM E8 |
| Thermal Conductivity (20°C) | 12.2 W/(m·K) | 7.05 BTU/(hr·ft·°F) | ASTM E1461 |
| Specific Heat Capacity | 0.50 kJ/(kg·K) | 0.12 BTU/(lb·°F) | Calorimetry |
| Thermal Expansion (20-1000°C) | 19 x 10⁻⁶ /K | 10.5 x 10⁻⁶ /°F | Dilatometry |
Formula: Resistance at operating temperature T (Rt) = R20 x Ct
english
français
Deutsch
Italiano
Русский
Español
português
Nederlandse
ελληνικά
日本語
한국
中文
العربية
हिन्दी
Türkçe
indonesia
tiếng Việt
ไทย
বাংলা
فارسی
polski
