Copper Nickel CuNi6 CuNi8 Bar for Precision Instruments and Connectors

When working in industries where precision, reliability, and durability are non-negotiable, the choice of materials becomes critical. Copper Nickel alloys, particularly CuNi6 and CuNi8, have proven themselves to be among the most reliable options for precision instruments and connectors. Their unique balance of copper and nickel offers a set of mechanical, physical, and chemical properties that make them indispensable for high-performance industrial applications. At DLX, we have built our reputation on manufacturing and supplying high-quality CuNi6 and CuNi8 bars that meet the needs of diverse global industries.

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CuNi6 and CuNi8 are low-nickel copper alloys that stand out because of their balance between performance and cost. CuNi6, with about 6% nickel, is designed to offer mechanical stability and resistance to oxidation, while CuNi8, with 8% nickel, enhances strength and corrosion resistance even further. Together, these alloys are excellent for precision instruments and connectors where accuracy, reliability, and durability are crucial.

At DLX, our CuNi6 and CuNi8 bars are produced under strict quality standards, ensuring exceptional consistency in chemical composition and physical properties. This consistency allows customers to rely on these alloys for critical applications in aerospace, marine, and precision manufacturing.

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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CuNi6 and CuNi8 are particularly valuable for:

• Precision Instruments: Their dimensional stability ensures accurate measurements and consistent performance in sensitive devices.

• Connectors and Terminals: With good electrical conductivity and strength, they are ideal for electrical connectors in aerospace, automotive, and industrial sectors.

• Marine Equipment: Their resistance to seawater corrosion makes them suitable for shipboard systems and offshore platforms.

• Aerospace Electronics: CuNi8 in particular provides enhanced reliability in harsh operating conditions.

• Industrial Components: Used in low-resistance applications, resistors, and specialized mechanical parts.

Industry Analysis

The demand for copper nickel alloys like CuNi6 and CuNi8 is increasing, driven by multiple sectors:

• Electronics Industry: With the growing complexity of aerospace and automotive electronics, reliable connectors and precision instruments are in high demand.

• Marine and Offshore: Resistance to seawater corrosion makes these alloys indispensable for naval and offshore engineering projects.

• Renewable Energy: Wind and solar projects require durable connectors and components that withstand tough environments.

• Global Manufacturing Trends: As industries prioritize sustainability, copper nickel alloys remain popular due to their recyclability and long service life.

The market for CuNi alloys is projected to grow steadily, with Asia-Pacific leading the expansion. DLX has strategically positioned itself with advanced production capabilities to cater to this rising global demand.

Comparison Table

Many companies can supply copper nickel bars, but at DLX, we differentiate ourselves in several key areas:

• Advanced Manufacturing: We use cutting-edge equipment to ensure consistent quality and precise tolerance control.

• Customization Options: DLX offers CuNi6 and CuNi8 bars in customized dimensions, lengths, and surface finishes to meet project-specific requirements.

• Strict Quality Control: Every batch undergoes rigorous testing to comply with international standards, ensuring safety and reliability.

• Global Reach: With an established supply chain and worldwide shipping network, we deliver quickly and efficiently to customers across the globe.

• Technical Expertise: Our team provides technical guidance, helping clients choose the right alloy for their application.

• Sustainability Commitment: DLX emphasizes environmentally responsible practices and ensures our copper nickel alloys support long-lasting, sustainable solutions.

Compared to general suppliers in the market, DLX consistently provides higher precision, better testing documentation, and faster delivery. Many suppliers may offer copper nickel alloys, but few can match our dedication to tailored solutions, reliability, and global support. DLX bridges the gap between industrial demand and high-quality alloy supply, ensuring clients receive not just material, but confidence in their critical applications

Copper Nickel CuNi6 and CuNi8 bars are more than just industrial materials; they are the backbone of precision and reliability in sectors where failure is not an option. With properties like excellent corrosion resistance, stable mechanical strength, and high machinability, these alloys are perfect for use in precision instruments and connectors.

At DLX, we are proud to be at the forefront of delivering high-performance CuNi6 and CuNi8 bars to our global customers. By combining advanced manufacturing, strict quality control, and customer-oriented service, we ensure that our products support innovation and long-term reliability across industries.

Whether you are building marine equipment, aerospace electronics, or precision industrial instruments, our CuNi6 and CuNi8 bars offer the performance you need. With DLX as your partner, you can be confident that your materials will meet and exceed expectations, driving success in every project.

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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 the composition of CuNi6 and CuNi8 bars?
  CuNi6 contains approximately 6% nickel, while CuNi8 contains around 8% nickel, with the balance being copper.

• Why are CuNi6 and CuNi8 bars used in precision instruments?
  They offer excellent dimensional stability, machinability, and resistance to corrosion, ensuring accurate performance.

• Are CuNi6 and CuNi8 bars suitable for electrical connectors?
  Yes, their good electrical conductivity and mechanical strength make them ideal for connectors and terminals.

• How do CuNi6 and CuNi8 differ in properties?
  CuNi8 provides slightly higher strength and corrosion resistance than CuNi6 due to its higher nickel content.

• Can these bars be customized for specific dimensions?
  Yes, DLX manufactures CuNi6 and CuNi8 bars in custom sizes, lengths, and surface finishes.

• What industries most commonly use CuNi6 and CuNi8?
  They are widely used in precision instruments, aerospace electronics, marine equipment, and industrial connectors.

• Are these alloys resistant to seawater?
  Yes, both CuNi6 and CuNi8 offer good resistance to seawater and brine solutions.

• Does DLX provide testing and certification for these bars?
  Yes, DLX supplies full material certification and testing to meet international standards.