Durable Constantan Alloy 6J40 Strip for Industrial Sensors and Resistors

The Constantan Alloy 6J40 Strip is one of the most reliable resistance alloys for industrial and electronic applications. Known for its stable electrical resistivity across a wide range of temperatures, it has become a cornerstone material in the design of industrial sensors, resistors, and precision instruments. With its balanced composition of copper and nickel, Constantan 6J40 offers exceptional resistance consistency, making it a trusted solution where long-term performance is critical.

At DLX, we specialize in producing Durable Constantan Alloy 6J40 Strip with tight dimensional tolerances and outstanding mechanical properties. This ensures that our products integrate seamlessly into advanced systems, from delicate measuring instruments to heavy-duty industrial equipment.

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The demand for Constantan 6J40 has been steadily growing, driven by the expansion of the global electronics industry, renewable energy technologies, and the aerospace sector. As industries shift toward higher precision and automation, the need for reliable resistance alloys has intensified.

• Electronics: With the miniaturization of devices, materials must deliver precise electrical stability in increasingly compact forms.

• Aerospace and Automotive: Modern aerospace and automotive systems rely heavily on high-accuracy sensors, where even slight resistance variations can compromise safety.

• Renewable Energy: From wind turbines to solar energy converters, accurate measurement and monitoring systems depend on reliable alloys like Constantan 6J40.

• Industrial Automation: As factories move toward Industry 4.0, resistance-based control devices require materials that can perform consistently under fluctuating loads and temperatures.

Constantan 6J40 is ideally suited to these needs because of its unparalleled ability to maintain stable resistance, even in demanding environments.

Parameter:

Properties Material	Resistivity 200c μΩ.m	Max working temperature (℃)	Tensile strength (Mpa)	Melting point (℃）	Density (g/cm3)	TCR *10-6/℃ (20-600℃）	EMF vs Cu (μV/℃） （0-100℃）
CuNi1	0.03	200	210	1085	8.9	＜100	-8
CuNi2	0.05	200	220	1090	8.9	＜120	-12
CuNi6	0.1	220	250	1095	8.9	＜60	-18
CuNi8	0.12	250	270	1097	8.9	＜57	-22
CuNi10	0.15	250	290	1100	8.9	＜50	-25
CuNi14	0.2	300	310	1115	8.9	＜30	-28
CuNi19	0.25	300	340	1135	8.9	＜25	-32
CuNi23	0.3	300	350	1150	8.9	＜16	-34
CuNi30	0.35	350	400	1170	8.9	＜10	-37
CuNi34	0.4	350	400	1180	8.9	0	-39
CuNi44	0.5	400	420	1200	8.9	＜-6	-43

Size Range
Wire	0.08-7.5mm
Ribbon	(0.05-0.35)*(0.5-6.0)mm
Strip	(0.50-2.5)*(5-180)mm
Rod	8-50mm

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The versatility of Constantan 6J40 Strip makes it suitable for a wide range of applications:

• Resistors and Rheostats: Ensures reliable resistance for precision electronic devices.

• Industrial Sensors: Provides stability in resistance-based sensors used in manufacturing and engineering.

• Strain Gauges: Preferred for its consistency under mechanical stress, enabling accurate strain measurement.

• Thermocouples: Functions effectively as a compensating material in thermocouple systems.

• Aerospace Instrumentation: Supports high-precision devices exposed to variable atmospheric conditions.

• Automotive Applications: Integrated into control units and diagnostic systems for reliable data collection.

This broad spectrum of applications highlights why Constantan 6J40 remains a material of choice for critical performance requirements.

DLX Company Advantages

When it comes to resistance alloys, DLX stands apart from typical suppliers. Our advantage lies in precision, customization, and consistency.

• Precision Manufacturing: We maintain tight dimensional tolerances, ensuring every strip meets exact industry requirements.

• Custom Solutions: We work closely with clients to develop tailored products, whether for specialized sensors or high-volume resistor manufacturing.

• Quality Assurance: Our production process incorporates rigorous testing to guarantee consistent performance and long-term reliability.

• Flexible Production Capacity: Whether you require large-scale supply or small-batch specialized orders, we can deliver efficiently without compromising quality.

• Technical Support: Our engineers provide expertise and guidance to ensure clients maximize the performance of our alloys in their specific applications.

These strengths make DLX the preferred partner for companies seeking more than just materials—they seek dependable solutions that contribute directly to performance and innovation.

Comparison Table: Constantan 6J40 vs Other Similar Alloys

The global market for resistance alloys like Constantan 6J40 is expected to grow steadily due to increasing demand for advanced electronics, automation, and energy systems. Some key trends include:

• Miniaturization of Electronics: Pushing demand for alloys with stable resistance in smaller forms.

• Smart Manufacturing: Driving the need for high-accuracy sensors and resistors made with Constantan 6J40.

• Sustainability Focus: Encouraging industries to adopt longer-lasting, corrosion-resistant materials to reduce waste.

• Global Infrastructure Growth: Expanding opportunities for alloys in aerospace, automotive, and industrial sensor applications.

DLX is well-positioned to serve these markets by continually enhancing production technology and ensuring our materials remain aligned with emerging industry needs.

DLX vs. Generic Suppliers

While many suppliers offer copper-nickel alloys, not all can provide the consistency and customization that industries now demand. Generic suppliers often deliver standard-grade materials that may not meet the stringent requirements of aerospace, scientific, or precision electronics sectors.

At DLX, we go beyond basic supply. We offer application-driven materials that are specifically manufactured and tested for the environments in which they will be used. This makes our Constantan 6J40 Strip not just a commodity, but a high-performance component in the success of our clients’ projects.

The Durable Constantan Alloy 6J40 Strip for Industrial Sensors and Resistors represents a material that bridges reliability, accuracy, and long-term performance. Its ability to deliver stable resistance under varying conditions makes it indispensable across industries, from advanced electronics to aerospace engineering.

DLX continues to set the standard in producing Constantan 6J40 Strip by focusing on quality, customization, and customer satisfaction. By combining technical expertise with modern production capabilities, we ensure our clients have access to a product that not only meets specifications but also empowers innovation.

As industries demand more precision and reliability, DLX remains committed to delivering resistance alloys that perform where it matters most.

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About Us:

Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. 

For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQs:

• What is Constantan 6J40 Strip made of?
  It is composed mainly of copper and nickel, typically around 55% copper and 45% nickel.

• What is the resistivity of Constantan 6J40?
  It has a resistivity of approximately 0.48 Ω·mm²/m.

• Does Constantan 6J40 maintain stable properties under temperature variations?
  Yes, it provides excellent temperature stability for electrical resistance applications.

• Where is Constantan 6J40 commonly used?
  It is used in resistors, strain gauges, thermocouples, and industrial sensors.

• Is Constantan 6J40 Strip corrosion resistant?
  Yes, it has good resistance to oxidation and atmospheric corrosion.

• Can Constantan 6J40 be welded or processed easily?
  Yes, it offers good machinability, weldability, and workability.

• Which industries use Constantan 6J40?
  Electronics, instrumentation, aerospace, automotive, and industrial manufacturing.

• Why choose DLX for Constantan 6J40 Strip?
  Because we provide precise dimensions, consistent quality, and customized production solutions.