Introduction
Silver Nickel (AgNi) Wire is a high-performance electrical contact material combining the superior conductivity of pure silver with the mechanical strength and wear resistance of nickel. Engineered for low-to-medium voltage switching devices, this composite wire delivers the structural durability and anti-welding properties required by automated manufacturing lines.
Key Performance Features
Stable Interface Performance: Uniform nickel integration prevents thick, insulating surface oxide build-up, maintaining stable contact resistance and eliminating localized hotspots across millions of cycles.
Low Arc Erosion Transfer: The micro-dispersed nickel phase segmentally breaks up arc energy, minimizing molten silver migration between contact faces to preserve long-term surface planarity.
Low Temperature Rise: Superior thermal conductivity rapidly dissipates heat away from the switching junction, protecting surrounding plastic housings and electronic controls from thermal degradation.
Optimized Formability: The fibers of nickel align perfectly along the drawing axis, providing excellent structural toughness that resists splitting during aggressive head-forming.
Technical Specifications and Material Properties
|
Material Grade / Compound |
Total Nickel Content |
Electrical Conductivity |
Tensile Strength Range |
Hardness Range (HV) |
Standard Elongation |
|
AgNi10 |
9.5% – 10.5% |
≥ 86% IACS |
200 – 320 MPa |
60 – 95 HV |
15% – 30% |
|
AgNi15 |
14.5% – 15.5% |
≥ 80% IACS |
220 – 350 MPa |
70 – 110 HV |
12% – 25% |
Quality Assurance & Compliance
Automotive-Grade Manufacturing: Produced under ISO 9001:2015 and IATF 16949 standards with strict SPC loops monitoring wire tension, surface finish, and conductivity across every shift.
100% Environmental Alignment: SGS-certified for full compliance with RoHS Directive (EU) 2015/863 and REACH Regulation (EC) No 1907/2006, guaranteeing zero toxic contaminants.
Complete Batch Traceability: All shipments are traceable to the raw material melt and include an EN 10204 3.1 Mill Test Certificate detailing chemical assays, hardness ratings, and tensile profiles.
Logistics, Packaging & Delivery
Standard Packaging
Vacuum-sealed on DIN125/160/200 plastic spools in anti-oxidation bags, packed in heavy-duty export cartons.
Delivery
3–5 business days for stock items; 14–21 business days for custom alloys/dimensions.
Logistics
Air express (DHL, FedEx, UPS) and sea freight; supports FOB, CIF, and DDP terms.
After-Sales Technical Support
Full Batch Traceability: Production retains and records are securely archived for 3 years, enabling complete raw material and process tracking within 24 hours of any inquiry.
Quality Guaranteed Policy: Should any material deviate from the agreed technical datasheet, we issue a full replacement or credit refund within 30 days of delivery.
Tooling Consultation: Our materials engineers provide remote or on-site parameter optimization for your automated riveting speeds and stroke pressures to maximize your die lifespans.
Frequently Asked Questions
Q: Why is AgNi wire preferred over pure silver wire for automated relay manufacturing?
A: Pure silver is highly conductive but lacks mechanical hardness, causing it to wear down quickly and weld under high inductive loads. The addition of nickel introduces a hard, wear-resistant phase that limits arc erosion and prevents contacts from sticking or welding under load.
Q: What is your factory's exact minimum order quantity (MOQ) for custom wire specs?
A: Our minimum manufacturing run for custom chemical ratios or specific custom dimensions is 25 kilograms. For standard catalog specifications, we support initial engineering validation runs with sample quantities starting at 5 kilograms.
Q: Can we run this wire on standard automated heading machines without causing excessive die wear?
A: Yes. Our wire undergoes a specialized stress-relieving process that optimizes the material's yield strength. This enables it to cut and form smoothly in automated tooling without cracking or causing accelerated tool die wear.
Q: How does your factory ensure the nickel particles do not separate or clump inside the silver?
A: We use advanced powder metallurgy coupled with continuous horizontal casting. This maintains an ultra-fine, uniform suspension of nickel throughout the melt, preventing large clusters that can cause unexpected tool wear on your stamping dies.
Q: How do you protect the material from tarnishing or spotting during long-distance ocean transport?
A: Every spool is individually vacuum-sealed inside heavy-duty aluminum composite bags containing gas-phase corrosion inhibitors and active desiccants, ensuring the wire arrives bright and ready for immediate manufacturing.
Q: Do you provide full compliance documentation to satisfy incoming quality control (IQC) procedures?
A: Yes. Every shipment includes a full documentation pack consisting of the chemical analysis sheet, physical property test curves, and an official signed statement confirming complete compliance with RoHS and REACH standards.
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