Sn97Cu3 Lead-Free Solder Wire

Sn97Cu3
Sn97Cu3 lead-free solder wire is a tin-copper alloy designed for applications requiring higher process temperature and stronger solder joint performance. With a melting point of approximately 300°C and available diameter from 0.3mm, it is suitable for industrial electronics, electrical components, and applications where higher thermal resistance is needed.
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Sn97Cu3 Lead-Free Solder Wire

A high-copper Sn97Cu3 lead-free solder wire for copper and copper-alloy components, industrial metal joining and elevated-temperature soldering processes.

Sn97Cu3High-Copper Tin-Copper
Approximately 227–310°CMelting point
Flux-cored / solid optionalWire configuration
Sn97Cu3 Lead-Free Solder Wire
Sn97Cu3 Lead-Free Solder Wire

High-copper tin-copper solder wire for industrial joining

Sn97Cu3 is a silver-free tin-copper alloy with a broad melting range and higher copper content than common Sn99.3Cu0.7 wire. It is intended for specialized industrial soldering and copper-based joints where the process temperature and substrate compatibility have been validated.

01

High-Copper Sn-Cu

Tin-copper composition containing approximately 3% copper.

02

Broad Melting Range

Process setup must account for an approximately 227–310°C melting range.

03

Silver-Free Alloy

Avoids silver content for applications that specify an Sn-Cu composition.

04

Copper-Based Joints

Applicable to selected copper and copper-alloy components.

05

Industrial Processes

Suitable for specialized joining after temperature and wetting validation.

06

Custom Supply

Diameter, wire type, flux system and packaging can be discussed.

Product Specifications

Reference information for initial product selection. Final alloy tolerance, diameter, flux content, packaging and process conditions should be confirmed before ordering.

Recommended Use

Recommended for copper and copper-alloy components, industrial metal joining, specialty electrical work and elevated-temperature processes after full solderability and reliability validation.

Product Name
Sn97Cu3 Lead-Free Solder Wire
Alloy / Series
Sn97Cu3
Alloy Family
High-Copper Tin-Copper
Melting Point
Approximately 227–310°C
Wire Diameter
≥0.3 mm
Wire Type
Flux-cored / solid optional
Flux Options
Rosin core / no-clean / custom option subject to selected specification
Packaging
10 g tube; 100 g / 200 g / 250 g / 500 g / 1000 g / 2000 g spool options subject to specification

Typical Applications

Application suitability depends on substrate finish, component design, flux selection, soldering equipment and reliability requirements.

Application 01Copper Components
Application 02Industrial Joining
Application 03Electrical Hardware
Application 04Specialty Soldering

Explore Lead-Free Solder Wire Options

Compare related alloys and wire configurations within the Jufeng lead-free solder wire series.

Technical information is provided for product selection reference. Validate the selected material using the actual components, substrates, equipment and reliability requirements.

Need a lead-free solder wire specification?

Send the required alloy, diameter, flux system, spool weight, application and annual demand for technical review and quotation.

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