Wuxi Nickel Alloy New Material Technology Co., Ltd
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 300 Ton per Month |
| Delivery Time | 2-30days |
| Packaging Details | carton, plywood pallet |
| Composition | Nickel, Chromium, Iron, Copper |
| Thermal Expansion Coefficient | 13.5×10-6/K |
| Corrosion Resistance | High |
| Density | 8.4 g/cm3 |
| Elongation At Break | 25-35% |
| Tensile Strength | 500-700 MPa |
| Max Operating Temperature | 1000-1200°C |
| Available Forms | Wire, strip, sheet, rod, tube, etc. |
| Applications | Heating elements, electrical resistors, thermocouples, etc. |
| Thermal Conductivity | 11.4 W/m·K |
| Material | Alloy |
| Electrical Resistivity | 1.0-1.5 μΩ·m |
| Place of Origin | China |
| Brand Name | NikTech |
| Certification | ISO 9001:2008 |
| Model Number | 0Cr21Al4 |
View Detail Information
Explore similar products
Cr30Ni70 Resistance Strip Nickel Chromium Alloy For Heat Corrosion Resistance
Nichrome Cr20Ni35 High Temperature Resistance Alloy Industrial 600-800 MPa
0Cr13Al4 Resistance Wire Oxidation Resistance For Industrial Domestic Heating
0Cr27Al7Mo2 Resistance Alloy Fe-Cr-Al-Mo Alloy For Heat Aggressive Environments
Product Specification
| Payment Terms | L/C,T/T,Western Union | Supply Ability | 300 Ton per Month |
| Delivery Time | 2-30days | Packaging Details | carton, plywood pallet |
| Composition | Nickel, Chromium, Iron, Copper | Thermal Expansion Coefficient | 13.5×10-6/K |
| Corrosion Resistance | High | Density | 8.4 g/cm3 |
| Elongation At Break | 25-35% | Tensile Strength | 500-700 MPa |
| Max Operating Temperature | 1000-1200°C | Available Forms | Wire, strip, sheet, rod, tube, etc. |
| Applications | Heating elements, electrical resistors, thermocouples, etc. | Thermal Conductivity | 11.4 W/m·K |
| Material | Alloy | Electrical Resistivity | 1.0-1.5 μΩ·m |
| Place of Origin | China | Brand Name | NikTech |
| Certification | ISO 9001:2008 | Model Number | 0Cr21Al4 |
| High Light | 0Cr21Al4 Resistance Alloy ，Fe-Cr-Al Resistance Alloy ，Oxidation Resistance nickel chromium heating wire | ||
0Cr21Al4 resistance wire is an iron-chromium-aluminum (Fe-Cr-Al) alloy designed for high-temperature electric heating applications, offering robust oxidation resistance, mechanical durability, and cost-effective performance. With a composition of 20–23% chromium, 4.5–6.5% aluminum, and balanced iron, this alloy forms a protective alumina (Al₂O₃) layer at temperatures up to 1,300°C (2,372°F), ensuring reliable operation in oxidizing and mildly corrosive environments such as industrial furnaces, household appliances, and automotive heating systems. Its low carbon content (≤0.08%) and controlled silicon (≤1.0%) minimize embrittlement, making it suitable for cyclic thermal operations where longevity and energy efficiency are critical.
Certified to GB/T 1234 and DIN 17470 standards, 0Cr21Al4 wire achieves a tensile strength of 550–700 MPa and a surface load capacity of 2.0 W/cm², outperforming conventional nickel-chromium alloys in cost-effectiveness for mid-range thermal applications. The alloy’s high electrical resistivity (1.30 μΩ·m) and low thermal expansion coefficient (14.5×10⁻⁶/°C) ensure stable energy output and dimensional stability, reducing operational costs in air or inert gas environments.
| Property | Value | Standard |
|---|---|---|
| Chemical Composition | Cr: 20–23%, Al: 4.5–6.5%, Fe: Balance | GB/T 1234, DIN 17470 |
| C: ≤0.08%, Si: ≤1.0%, Mn: ≤0.7% | ASTM B603 (similar) | |
| Mechanical Properties | Tensile Strength: 550–700 MPa | ASTM E8 |
| Elongation: ≥18% | ||
| Physical Parameters | Density: 7.2 g/cm³ | ISO 6892 |
| Melting Point: 1,500°C | ||
| Electrical Resistivity: 1.30 μΩ·m |
Industrial Furnaces: Heating elements for annealing, drying, and sintering processes.
Consumer Appliances: Oven coils, toasters, and electric space heaters.
Automotive: Seat warmers, defrosting systems, and exhaust gas heaters.
Agriculture: Livestock barn heaters and greenhouse climate control systems.
Energy Sector: Low-cost heating solutions for boilers and heat recovery units.
Q1: What is the maximum continuous operating temperature for 0Cr21Al4 wire?
A: 1,200°C in continuous use and 1,300°C for short-term operations, ideal for applications requiring moderate thermal stress resistance.
Q2: Can this alloy withstand chlorine-rich atmospheres?
A: Limited resistance. For chlorine exposure above 800°C, consider higher-grade alloys like 0Cr27Al7Mo2.
Q3: Is pre-oxidation treatment necessary for optimal performance?
A: Yes. Heat-treat at 900–1,000°C for 1–2 hours to enhance the alumina layer and extend service life by 20–30%.
Company Details
Business Type:
Manufacturer
Year Established:
2002
Total Annual:
20000000-80000000
Employee Number:
50~500
Ecer Certification：
Verified Supplier
Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-res... Wuxi Nickel New Material Co., Ltd. is a high-tech enterprise integrating the production, manufacturing, and research & development of specialty alloy materials. Located in Wuxi, Jiangsu Province, the company specializes in precision alloys, titanium alloys, high-temperature alloys, corrosion-res...
Get in touch with us
Leave a Message, we will call you back quickly!