High Precision Constantan 6J40 Strip for Electrical Resistance Applications

The Constantan 6J40 Strip is a high-precision copper-nickel alloy widely recognized for its exceptional stability in electrical resistance. Its composition of approximately 55% copper and 45% nickel provides a balanced combination of excellent resistivity, corrosion resistance, and durability. At DLX, we manufacture Constantan 6J40 Strip to meet the stringent requirements of industries where precision is not just expected but demanded.

This strip is particularly designed for applications in resistance measurement, strain gauges, thermoelectric devices, and sensitive instrumentation. Unlike standard alloys, Constantan 6J40 Strip ensures performance stability even when exposed to varying temperatures, making it indispensable in environments where accuracy cannot be compromised.

The demand for resistance alloys like Constantan 6J40 continues to grow, driven by advancements in electronics, precision measurement, and aerospace engineering. With the global push toward high-efficiency devices and automation, industries now require materials that not only perform under pressure but also ensure long-term stability.

Constantan 6J40 stands out in this context because of its reliable resistance properties. Compared to other copper-nickel alloys, it offers enhanced temperature stability, which is critical in high-end electronics and measuring devices. Furthermore, the trend toward miniaturization and precision-based equipment further solidifies the importance of materials like Constantan 6J40 in global markets.

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The applications of Constantan 6J40 Strip are diverse, cutting across multiple industries:

• Electrical Resistance Components: Used in resistors and rheostats where stable resistance is critical.

• Strain Gauges: A preferred material for strain gauge manufacturing due to its consistent resistivity.

• Thermoelectric Devices: Ensures accurate performance in thermal measurement systems.

• Aerospace Systems: Provides stability in sensors and instruments exposed to fluctuating conditions.

• Scientific Research Instruments: Enables precision in experimental setups requiring consistent electrical output.

These applications demonstrate why Constantan 6J40 remains an essential material for modern engineering solutions.

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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When comparing DLX with other suppliers, our edge is clear. While many companies may provide Constantan strips, DLX ensures precision, reliability, and customization. Our manufacturing process is optimized for accuracy, ensuring that every strip we deliver meets the tightest tolerances in thickness, width, and resistivity.

We also offer flexibility in production, allowing us to tailor Constantan 6J40 Strip to specific customer requirements. This is particularly valuable for clients in aerospace, research, and high-tech electronics, where off-the-shelf solutions often fall short. Our in-house quality assurance systems, combined with advanced testing methods, guarantee long-term reliability of our products.

Another strength lies in our ability to manage large-scale and small-batch orders with equal efficiency. Whether our clients need bulk shipments for industrial applications or custom solutions for experimental projects, DLX is capable of delivering with speed and consistency.

Comparison Table: Constantan 6J40 vs. Other Copper-Nickel Alloys

The market for Constantan 6J40 Strip is expected to expand as global industries move toward higher standards of precision and durability. In electronics, as devices become smaller and more sensitive, the need for stable alloys increases. Similarly, aerospace and defense sectors are increasingly demanding materials that can withstand harsh conditions without compromising performance.

DLX has positioned itself at the forefront of this trend. By continuously upgrading our manufacturing technology and expanding our research capabilities, we ensure that our Constantan 6J40 products are aligned with the evolving needs of the global market.

Choosing DLX for Constantan 6J40 Strip means choosing a partner who understands the complexity of precision alloys. Our strength lies not only in producing high-quality materials but also in providing technical support, fast delivery, and long-term cooperation. We work closely with clients, from engineers to purchasing managers, ensuring that our products integrate seamlessly into their systems.

Our extensive experience across various industries allows us to anticipate customer needs and provide solutions that add real value. By investing in both our technology and our people, DLX guarantees products that not only meet but exceed expectations.

The High Precision Constantan 6J40 Strip is more than just a material—it is a foundation for accuracy, stability, and reliability in critical applications. From electrical resistance components to aerospace instrumentation, its performance underpins industries where precision is paramount.

At DLX, we take pride in delivering Constantan 6J40 Strip that reflects our commitment to excellence. With superior quality control, tailored production, and a deep understanding of industry demands, we offer clients a product that truly stands out in the marketplace.

As industries evolve, DLX remains a trusted partner, ensuring that our customers always have access to the best materials for their most demanding applications.

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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 a copper-nickel alloy primarily composed of about 55% copper and 45% nickel.

• What is the main feature of Constantan 6J40?
  It offers very stable electrical resistance over a wide range of temperatures.

• Where is Constantan 6J40 Strip commonly used?
  It is widely used in electrical resistance components, strain gauges, and precision instruments.

• How does Constantan 6J40 perform in high-temperature conditions?
  It maintains stable resistance even under elevated temperatures.

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

• Can Constantan 6J40 Strip be easily processed?
  Yes, it has excellent machinability, weldability, and workability.

• What industries rely on Constantan 6J40?
  Electronics, instrumentation, aerospace, and scientific research.

• Why choose DLX for Constantan 6J40 Strip?
  Because we offer precise dimensions, reliable quality, and customized production for specialized projects.