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China factories

China factory - Jiangyin Chengxin Alloy Material Co., Ltd ，

Jiangyin Chengxin Alloy Material Co., Ltd ，

  • China,Changzhou ,Jiangsu
  • Verified Supplier
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  3. NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance
China NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance
China NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance

  1. China NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance
  2. China NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance
  3. China NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance

NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance

  1. MOQ： 5 kg
  2. Price： TBD
  3. Get Latest Price
Payment Terms T/T, D/P
Supply Ability 30 Tons Per Day
Delivery Time 3 days
Packaging Details Packed with waterproof paper or weave bag, into pallets or wooden case. Special packaging requirements can also be accommodated.
Product name PTC Ni-Fe Alloy Wire NF32
Material Ni, Fe
Application Applicable to various electric heaters
Diameter 0.05 mm-8 mm
Brand Name Senphus
Model Number NF32
Certification SGS, ISO9001
Place of Origin Jiangsu, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T, D/P Supply Ability 30 Tons Per Day
Delivery Time 3 days Packaging Details Packed with waterproof paper or weave bag, into pallets or wooden case. Special packaging requirements can also be accommodated.
Product name PTC Ni-Fe Alloy Wire NF32 Material Ni, Fe
Application Applicable to various electric heaters Diameter 0.05 mm-8 mm
Brand Name Senphus Model Number NF32
Certification SGS, ISO9001 Place of Origin Jiangsu, China
High Light NF32 PTC Ni-Fe Alloy Wire ，Stable Resistance Ni-Fe Alloy Wire

NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content for Stable Resistance in Various Environments Resistance 0.32

 

The product exhibits a resistivity of 0.32 at a temperature of 20°C, with a tolerance range of ±0.02.

 

NF32 PTC Ni-Fe Alloy Wire (Ni 50%-55%) is a nickel-iron alloy designed for applications requiring precise thermal and electrical properties. Its Positive Temperature Coefficient (PTC) behavior ensures that resistivity increases with temperature, making it ideal for temperature sensing, control, and overcurrent protection devices. The wire exhibits excellent magnetic properties, including high permeability and low coercivity, which make it suitable for soft magnetic applications like transformers, inductors, and magnetic shielding.
 
The alloy features high electrical resistivity, which minimizes energy losses in magnetic circuits, and offers thermal stability across a broad temperature range, ensuring consistent performance in demanding environments. Its corrosion resistance is enhanced by the nickel content, contributing to longevity in various operating conditions.
 
Mechanical properties such as good ductility and machinability allow the wire to be manufactured in precise forms for specialized uses. NF32 is widely used in precision instruments, thermistors, magnetic cores, and electronic components where stable resistive and magnetic performance is critical. Combining reliability, durability, and versatility, NF32 PTC Ni-Fe Alloy Wire is a valuable material for industrial, electrical, and electronic applications.

 

Main Chemical Composition Wt.% NF32 PTC Ni-Fe Alloy % Ni Fe
Min 50  
Max 55 Bal.

 

 

Some key features of NF32 include:

 

1. Positive Temperature Coefficient (PTC):

Exhibits increased electrical resistivity with rising temperature, making it suitable for temperature control, sensing, and overcurrent protection.

 

2. Magnetic Properties:

High permeability and low coercivity, ideal for soft magnetic applications such as magnetic cores, transformers, and inductors.
 

3. High Electrical Resistivity:

Reduces energy losses in magnetic circuits, enhancing efficiency in electrical systems.

 

4. Thermal Stability:

Provides consistent performance across a wide temperature range, making it reliable for demanding environments.

 

5. Corrosion Resistance:

The nickel content ensures resistance to oxidation and corrosion, enhancing durability in harsh conditions.
 

6. Mechanical Properties:

Good ductility and machinability, enabling manufacturing in precise forms like wires, sheets, and other components.

 

7. Versatile Applications:

Used in thermistors, precision instruments, magnetic shielding, and electronic components where consistent magnetic and resistive properties are essential.

 

8. Durability:

Combines thermal, electrical, and magnetic stability with long-lasting performance in industrial, electrical, and electronic systems.

 

 

Applications:

 

  • Temperature Sensing and Control:

    • Used in thermistors and temperature-sensitive resistors to regulate and monitor temperature in heating elements, electronic circuits, and industrial equipment.

  • Overcurrent Protection Devices:

    • Serves as a current limiter in electronic circuits by increasing resistance at higher currents or temperatures, preventing damage to components.

  • Magnetic Cores:

    • Applied in transformers, inductors, and chokes due to its soft magnetic properties, ensuring efficient energy transfer and minimal losses.

  • Magnetic Shielding:

    • Provides shielding in electronic devices to prevent interference from external magnetic fields, improving device reliability.

  • Precision Instrumentation:

    • Integrated into high-accuracy sensors and control systems requiring stable magnetic and electrical properties over varying temperatures.

  • Electronic and Automotive Components:

    • Used in resistors, sensors, and other electronic parts in automotive systems for temperature and current regulation.

  • Industrial Heating Elements:

    • Applied in self-regulating heating elements, where its PTC property ensures stable and safe operation.

  • Consumer Electronics:

    • Included in circuit protection for household appliances, protecting circuits from overheating or overcurrent conditions.

NF32’s unique combination of resistive, thermal, and magnetic properties makes it versatile for diverse industries, including electronics, automotive, and industrial manufacturing.

 

Resistance Values and Naming Conventions for PTC Ni-Fe Alloy Wires

 

Alloy brand 20℃ Resistivity The tolerance range
NF13 0.13 ±0.02
NF15 0.15 ±0.02
NF20 0.20 ±0.02
NF23 0.23 ±0.02
NF25 0.25 ±0.02
NF32 0.32 ±0.02
NF36 0.36 ±0.02
NF38 0.38 ±0.02
NF40 0.40 ±0.02
NF43 0.43 ±0.02
NF46 0.46 ±0.02
NF52 0.52 ±0.02
NF60 0.60 ±0.02

 

Chemical Composition of Different Models of PTC Ni-Fe Alloy Wire

 

Alloy brand Chemical element
Ni % Fe %
NF13 85-95 Rest
NF15 75-85 Rest
NF20 70-75 Rest
NF23 60-65 Rest
NF25 60-65 Rest
NF32 50-55 Rest
NF36 50-55 Rest
NF38 50-55 Rest
NF40 50-55 Rest
NF43 45-50 Rest
NF46 45-50 Rest
NF52 45-50 Rest
NF60 45-50 Rest

 

Temperature Coefficients of Different Models of PTC Ni-Fe Alloy Wire

 

Alloy brand 120℃ Temperature coefficient PPM The tolerance range PPM
NF13 4200 ±300
NF15 4400 ±300
NF20 4500 ±300
NF23 4800 ±300
NF25 4600 ±300
NF32 4200 ±300
NF36 3800 ±300
NF38 4000 ±300
NF40 3800 ±300
NF43 3400 ±300
NF46 3200 ±300
NF52 3000 ±300
NF60 2500 ±300

 

Mechanical properties (tensile strength)

 

Category Diameter range
mm		 Elongation rate
≥ %
Cold drawn wire 0.05 ＞ d ＜ 0.1 ≥ 18
0.1 ＞ d ＜ 0.3 ≥ 20
0.3 ＞ d ＜ 0.5 ≥ 20
0.5 ＞ d ＜ 1.0 ≥ 20

 

Size (diameter)

 

Alloy Code Diameter mm
Wire Rod Wire rod
NF13 0.05-8.0 12-30 8-14
NF15 0.05-8.0 12-30 8-14
NF20 0.05-8.0 12-30 8-14
NF23 0.05-8.0 12-30 8-14
NF25 0.05-8.0 12-30 8-14
NF32 0.05-8.0 12-30 8-14
NF36 0.05-8.0 12-30 8-14
NF38 0.05-8.0 12-30 8-14
NF40 0.05-8.0 12-30 8-14
NF43 0.05-8.0 12-30 8-14
NF46 0.05-8.0 12-30 8-14
NF52 0.05-8.0 12-30 8-14
NF60 0.05-8.0 12-30 8-14

 

Support and Services:

1. Technical Consultation

2. Product Selection

3. Time Guarantee

4. Warranty and After-Sales Support

 

Q&A:

1. Can this product be made into alloy wire?

Yes, each product model can be made in the diameter range of 0.05mm-30mm, can be customized.

2. Are your products safe and environmentally friendly?

Our products have passed the SGS test report, for the European Chemicals Agency and WTO concern SVHC content below the specified 0.1%, and passed the ISO9001 quality system certification.

3. What is the minimum quantity the customer can order?

If the stock of the required product is sufficient, we can provide a single copy as a sample, if the stock is insufficient, the minimum order quantity is 5kg.

 

 

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    2003

  • Total Annual:

    230000000-240000000

  • Employee Number:

    1400~1500

  • Ecer Certification：

    Verified Supplier

Company Overview: Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and pre... Company Overview: Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and pre...

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Get in touch with us

  • Reach Us
  • Jiangyin Chengxin Alloy Material Co., Ltd ，
  • Building 3, No. 29, Beitanghe East Road, Qinglong Street, Tianning District, Changzhou City, Jiangsu Province
  • https://www.heatingalloywire.com/

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