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Rapid-Supply High Purity Copper Nickel Clad Sheet for Electrical Connectors
In the fast-paced electrical connector and electronics industry, lead time is often as critical as material quality. DLX Alloy maintains an extensive inventory of High Purity Copper-Nickel Clad Sheets, ensuring your production lines never experience downtime. Our bimetal sheets combine the ultra-high conductivity of oxygen-free copper with the superior welding and oxidation resistance of high-purity nickel.
- Overview
- Applications
- DLX Alloy
- FAQs
- Recommended Products
Product Overview of Copper Nickel Clad Sheet
Our high purity copper nickel clad sheet is a bimetallic composite material that merges the superior electrical and thermal conductivity of pure copper with the corrosion resistance, oxidation protection, and weldability of nickel. Produced through advanced cladding processes (roll bonding or equivalent), it ensures a strong, permanent metallurgical bond without delamination.
This copper nickel clad sheet is optimized for electrical connectors, offering low contact resistance, good solderability, and long-term reliability in demanding environments. Ideal for manufacturers of electrical connectors, terminals, battery tabs, and electronic components requiring consistent performance and durability.
Product Features of Copper Nickel Clad Plate Supplier
1.High purity copper core for excellent electrical conductivity and low resistance in electrical connectors
2.Nickel cladding layer providing superior corrosion resistance, oxidation protection, and enhanced surface durability
3.Strong metallurgical bond ensuring no peeling or separation during forming, stamping, or bending
4.Excellent weldability (spot, resistance, and laser) and solderability for reliable connector assembly
5.Good thermal conductivity and heat dissipation performance
6.Customizable layer ratios, thicknesses, widths, and tempers to match specific electrical connector designs
7.Smooth surface finish suitable for high-precision stamping and contact applications
Physical Properties & Chemical Composition
| Physical Properties | Pure Nickel Layer | Pure Copper Layer | Bimetal (Avg. at 20% Ni) |
|---|---|---|---|
| Density (g/cm³) | 8.89 | 8.96 | ~8.94 |
| Conductivity (% IACS) | ~22 | 100 - 101 | 82 - 88 |
| Thermal Conductivity (W/m·K) | 90.7 | 390 - 400 | ~330 |
| Elastic Modulus (GPa) | 207 | 110 - 128 | 135 - 150 |
| Material Layer | Ni (%) | Cu (%) | Fe (%) | C (%) | S (%) |
|---|---|---|---|---|---|
| Pure Nickel Side | 99.6 min | 0.10 max | 0.10 max | 0.05 max | 0.005 max |
| Pure Copper Side | - | 99.9 min | - | - | - |
Applications of Cu-Ni Clad Strip Factory
1.EV & HEV Battery Packs: Used for interconnecting 18650, 21700, and 46800 cells. The Ni side welds to the cell cap, while the Cu side serves as the main high-current busbar.
2.Power Distribution Units (PDUs): Ideal for bimetallic transition plates between copper busbars and nickel-plated aluminum or steel components in data centers and industrial power grids.
3.Consumer Electronics: Used in high-capacity laptop, smartphone, and power tool batteries where space is limited but current requirements are high.
4.Electrolytic Hydrogen Production: Serves as high-efficiency electrode connectors where both corrosion resistance and low voltage drop are paramount.
5.High-Frequency Semiconductors: Used as a substrate or lead frame material that requires both heat dissipation (Cu) and reliable wire bonding (Ni).
Key advantage：
✔Dual-Metal Synergy: Combines copper's 100% IACS conductivity with nickel’s superior spot-welding reliability.
✔Cold-Rolling Precision: Manufactured using high-precision mills to ensure cladding ratio uniformity within ±2%.
✔Automated Line Compatibility: Burr-free slitting and high flatness ensure zero jams in high-speed automated assembly equipment.
✔Transition Efficiency: Eliminates the need for transitional plating or mechanical clamping, simplifying module design.
⭐Company Intro - DLX Alloy
Changzhou DLX Alloy Co., Ltd. has redefined the supply model for the high-tech electronics and connector industries. Recognizing that market cycles are shrinking, we have moved beyond traditional "made-to-order" manufacturing to an agile, stock-driven supply chain. Our facility integrates large-scale production with a dedicated "Rapid Response Unit" that specializes in small-batch slitting and urgent prototyping. By maintaining a deep inventory of high-purity nickel-clad copper materials, we allow our global partners to reduce their own inventory carrying costs and respond instantly to new design requirements. At DLX, we don't just provide the metallurgical foundations for your connectors; we provide the speed and flexibility required to win in today’s competitive electronics landscape.
Quality & Standards : DLX implements a zero-defect quality system for battery materials. We utilize online ultrasonic testing to ensure 100% bond integrity and automated optical inspection (AOI) for surface defects. All materials are fully compliant with RoHS 3, REACH, and UL standards for electronic insulation and safety.
Forms: sheet, strips, or custom pre-cut tags.
Packaging: Vacuum-sealed anti-oxidation VCI bags inside reinforced wooden crates.
MOQ: 5kg for standard 2:8 ratio stock; 20kg for custom thickness or specific tempers.
Documentation: Full MTC (EN10204 3.1), RoHS compliance certificate, and Bond Strength Report.
FAQs:
Q1: What is the structure of this high purity copper nickel clad sheet?
A: It typically features a high-purity copper core clad with pure or high-purity nickel layers (single or double-sided). The metallurgical bond combines copper’s high conductivity with nickel’s corrosion resistance and weldability, making it ideal for electrical connectors.
Q2: Why is copper nickel clad sheet preferred for electrical connectors?
A: It delivers high electrical conductivity from the copper layer while the nickel surface provides excellent corrosion resistance, oxidation protection, low contact resistance, and superior weldability—key requirements for reliable electrical connectors and terminals.
Q3: Can the thickness ratio and dimensions be customized?
A: Yes. We offer fully customizable copper-to-nickel thickness ratios, total sheet thickness, width, length, and temper (annealed to hard) to meet the exact needs of your electrical connector production.
Q4: Is this clad sheet suitable for high-current applications?
A: Yes. The high-conductivity copper core significantly reduces electrical resistance and heat generation compared with pure nickel, while the nickel cladding maintains surface integrity and corrosion protection in electrical connectors.
