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NiCr Electric Resistance wire Cr20Ni30 for industrial furnaces. Offers excellent oxidation resistance and stable heating up to 1100°C. Known for its excellent oxidation resistance, high electrical resistivity, and stable heating properties, this Cr20Ni30 wire is ideal for demanding applications in industrial and domestic heating systems.
Cr10Ni90/Cr20Ni80/Cr30Ni70/Cr15Ni60/Cr20Ni35/Cr20Ni30
DLX
Bright
Customized Size
8.2g/cm3
637-784Mpa
ISO9001/ CE/ROHS
5kg
1390°C
5-20 Days
chemical,petroleum
Product Description
The Nickel-Chromium Cr20Ni30 Electric Resistance Wire is a high-performance alloy composed of 30% nickel, 20% chromium, and balanced iron, designed for reliable industrial heating applications. With a maximum continuous service temperature of 1100°C, NiCr Electric Resistance wire Cr20Ni30 offers excellent oxidation and corrosion resistance, making it ideal for demanding environments such as industrial furnaces, heat treatment systems, and chemical processing equipment. Its high resistivity (1.04±0.05 μΩ·m) ensures efficient and stable heating, while its formability allows for versatile designs like coils and strips. Manufactured by Changzhou DLX Alloy Co., Ltd., this Cr20Ni30 wire meets ISO9001 standards, ensuring quality and durability.
Max Continuous Service Temperature: 1100°C
Melting Point: 1390°C
Surface: Bright or Oxidized
Condition: Annealed
Operates reliably at temperatures up to 1100°C, ideal for industrial furnaces and heaters.
Resists degradation in acidic, alkaline, and humid environments, ensuring long-term durability.
With 1.04±0.05 μΩ·m, provides efficient and consistent heating with minimal energy loss.
Resists degradation in acidic, alkaline, and humid conditions, suitable for harsh industrial settings.
Easily shaped into coils, strips, or custom designs for diverse industrial applications.
Austenite structure minimizes electromagnetic interference, suitable for sensitive equipment.
Specification
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)*(5-180) |
| Performance material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
| composition | 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 | |
| Meltiing point ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Density(g/cm3) | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
| Resistivity | -- | 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 lines expansion | -- | 18 | 17 | 17 | 19 | 19 | |
| Micrographic structure | -- | Austenite | Austenite | Austenite | Austenite | Austenite | |
| Magnetic properties | -- | Nonmagnetic | Nonmagnetic | Nonmagnetic | Nonmagnetic | Nonmagnetic | |
Application Field
NiCr Electric Resistance wire Cr20Ni30 for industrial is valued for its versatility and reliability across various industries:
Furnace Heating Elements: Used in ceramic, glass, and metal processing furnaces for consistent and high-temperature heating.
Heat Treatment Furnaces: Provides precise temperature control for annealing, tempering, and hardening processes.
Electric Heaters and Kettles: Ensures rapid and efficient heating with long-term durability.
Toasters and Ovens: Supports high-temperature cooking and baking with stable performance.
Metallurgical Furnaces: Ideal for melting and alloying metals in corrosive environments.
Precision Components: Used in manufacturing automotive and aerospace parts requiring controlled heating.
Semiconductor Manufacturing: Provides clean and stable heating for wafer processing and deposition systems.
Resistors and Sensors: Integrated into high-precision resistors and temperature sensors.
Our Advantage
CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.
1.Market Leader - Top 5 in China's nonferrous metal industry
2.Flexible products - Thousands of product specifications,Meet multiple needs of buyers
3.Low MOQ - Can customize samples
4.Short production lead time, fast delivery of whole cabinet
5.Professional inspection equipment - Before delivery, we will use spectrometers, tensile testers and other professional equipment to conduct a comprehensive inspection of the products to ensure that the goods are qualified for acceptance
6.Professional business team - Quickly responds to customer inquiries,24-hour professional quotation online The salesperson will follow the customer's requirements for the use of the product,Professionally recommend more appropriate performance and price products to customers
7.Intact packaging - Packaging according to customer needs.You can customize wooden boxes to ensure that the goods arrive at the destination in good condition
8.Various payment methods - Facilitate customer payment
9.Get good reviews from customers - Old customers have long-term cooperation,The longest is more than 7 years
10.Received various awards - Google is very recognized by us,They give us awards every year
FAQ
A: Cr20Ni30 resistance heating wire can continuously operate at temperatures up to 1150–1200°C (2100–2190°F) in oxidizing atmospheres, making it ideal for industrial furnaces, kilns, and high-temperature electric heating elements.
A: DLX ALLOY is a professional Cr20Ni30 Nichrome wire manufacturer located in China with over 12 years of experience in producing NiCr and FeCrAl resistance alloys. We supply global customers with stable quality and competitive factory-direct pricing.
A: Cr20Ni30 (NiCr 30/20) offers better oxidation resistance and higher mechanical strength at elevated temperatures while being significantly more economical than Cr20Ni80. It is the preferred choice when maximum temperature does not exceed 1200°C.
A: Yes, DLX ALLOY offers free samples (≤300g) of Cr20Ni30 Nichrome resistance wire for testing. We regularly ship to the USA, Germany, UK, India, Korea, and other countries.
