Sn97Cu3 solder bar
Sn97Cu3 Solder Bar
Sn97Cu3 solder bar is a high-copper tin alloy for specialty soldering, alloy adjustment and industrial processes requiring a significantly higher melting temperature.

High-copper solder bar for specialty alloy applications
This composition is not a general replacement for common Sn99.3Cu0.7 wave-soldering alloy. Its higher copper content and approximately 300°C melting point require process-specific equipment, flux and temperature validation.
3% Copper Content
High copper content supports specialty alloy and process requirements.
Approx. 300°C Melting Point
Designed for elevated-temperature applications rather than standard wave soldering.
Lead-Free Composition
Tin-copper chemistry without intentionally added lead.
Specialty Process Material
Suitable for controlled industrial use after validation.
Bar Form Supply
Convenient for melting, charging and alloy correction.
Engineering Confirmation
Equipment capability, flux and substrate compatibility must be confirmed before use.
Recommended Use
Recommended for specialty industrial joining, alloy adjustment, metal processing and applications where Sn97Cu3 is explicitly specified.
Product Specifications
Core data for initial product selection. Final alloy tolerance, bar size and packaging should be confirmed against the approved specification or purchase order.
Typical Applications
Application suitability depends on the substrate finish, flux, solder-bath condition, temperature profile, joint design and reliability requirements.
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