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The Cr30Ni70 nichrome wire stands out as a versatile resistance alloy wire in the field of electric heating and welding. As a specialized nichrome resistance heating element, it combines high melting points with excellent thermal stability, suitable for various industrial heating wire uses.
Cr10Ni90/Cr20Ni80/Cr30Ni70/Cr15Ni60/Cr20Ni35/Cr20Ni30
DLX
Bright
Customized Size
8.1g/cm3
ISO9001/ CE/ROHS
5kg
1380°C
5-20 Days
chemical,petroleum
Product Description
Our Cr30Ni70 electric nichrome wire resistance alloy is a high-performance material designed specifically for welding and heating tasks. This nichrome heating wire features a precise composition of 30% chromium and 70% nickel, offering exceptional resistance to oxidation and corrosion at elevated temperatures. Ideal for industrial resistance wire applications, it ensures stable electrical resistivity and superior mechanical strength, making it a preferred choice for electric heating elements in manufacturing settings across the USA, Europe, and Asia. Whether you're sourcing nichrome alloy for precision welding or custom resistance heating solutions, this wire delivers consistent performance in demanding environments.
Max Continuous Service Temperature: 1250°C
Melting Point: 1380°C
Surface: Bright or Oxidized
This nichrome heating element wire withstands temperatures up to 1200°C, making it an ideal high-temperature alloy wire for prolonged use in electric furnaces and welding equipment.
Engineered with premium nichrome alloy composition, it resists scaling and oxidation, ensuring longevity in corrosive environments typical of industrial resistance heating applications.
Offers consistent resistivity values, perfect for precision resistance wire in heating coils and electric heating systems across global industries.
The Cr30Ni70 nichrome wire provides robust tensile strength and flexibility, facilitating easy fabrication into custom welding wire forms without compromising performance.
As a top nichrome resistance alloy, it excels in humid or chemical-exposed settings, supporting reliable electric resistance heating in diverse geographic locations like coastal manufacturing hubs.
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
Utilized as a primary welding resistance wire for joining metals in automotive and aerospace sectors, providing stable arcs and minimal spatter for high-quality welds.
Serves as a core component in resistance heating alloy applications, such as in kilns, ovens, and dryers, where consistent heat distribution is essential for processes in European and American factories.
Integrated into toasters, hair dryers, and space heaters as nichrome heating wire, offering efficient electric resistance for everyday consumer products in global markets.
Employed in scientific instruments requiring precise temperature control, like incubators and hot plates, leveraging its high-temperature nichrome alloy features for research facilities worldwide.
Adaptable for specialized resistance wire projects in electronics and metallurgy, supporting innovations in heating element designs across Asia-Pacific and North American industries.
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
The Cr30Ni70 nichrome alloy wire consists of approximately 30% chromium and 70% nickel, with trace elements for enhanced stability, making it a premium choice for electric heating wire and welding applications.
It excels at temperatures up to 1200°C, offering excellent oxidation resistance and thermal stability as a high-temperature resistance alloy, suitable for industrial heating and welding tasks globally.
Yes, its flexible and durable nature makes it ideal for tailored welding resistance alloy uses, from precision soldering to heavy-duty fabrication in various geographic manufacturing regions.
Nichrome wire provides superior corrosion resistance, higher melting points, and consistent electrical properties compared to alternatives, optimizing SEO-friendly performance in electric heating element designs worldwide.
Absolutely, its oxidation-resistant nichrome properties ensure reliability in harsh environments, such as chemical plants or marine applications, supporting global industrial resistance wire needs.
