Sn42Bi57.6Ag0.4 Flux-Cored Lead-Free Solder Wire
Sn42Bi57.6Ag0.4
Flux-Cored
Lead-Free Solder Wire
Sn42Bi57.6Ag0.4 flux-cored lead-free solder wire is a low-temperature tin-bismuth-silver solder alloy designed for heat-sensitive electronic applications. With a melting point of approximately 138°C and available diameter from 0.6mm, it enables low-temperature soldering, reduced thermal stress, and convenient operation for repair, rework, and compact PCB assembly.
A low-temperature flux-cored solder wire with silver addition.
Sn42Bi57.6Ag0.4 solder wire is suitable for low-temperature soldering processes where heat-sensitive components and substrates require careful thermal control. Its flux-cored structure improves soldering convenience, while the silver-containing alloy helps support stable joint performance.
Low Thermal Stress
Low melting point helps reduce heat impact during soldering.
Flux-Cored Convenience
Built-in flux core supports easier manual soldering and repair.
Silver-Modified Alloy
Silver addition helps improve solder joint behavior and reliability.
Compact PCB Friendly
Suitable for small boards, delicate parts, and repair operations.
Sn42Bi57.6Ag0.4 Flux-Cored solder wire specifications.
Core product parameters for quick evaluation and RFQ communication.
| Item | Specification | Description |
|---|---|---|
| Product Name | Sn42Bi57.6Ag0.4 Flux-Cored Lead-Free Solder Wire | Low-temperature SnBiAg solder wire |
| Alloy Composition | Sn42 / Bi57.6 / Ag0.4 | Tin-bismuth-silver lead-free alloy |
| Melting Point | 138°C | Low-temperature solder alloy |
| Minimum Diameter | ≥0.6mm | Suitable for flux-cored solder wire production |
| Wire Type | Flux Cored | Built-in flux for convenient soldering |
| Flux Type | Rosin Core / No-Clean Optional | Flux formulation available on request |
| Surface | Bright and smooth | Supports stable feeding and soldering |
| Packaging | Tube / Spool / Carton | 10g per tube; 100g–2000g per roll; carton packaging available |
Designed for low-temperature soldering of sensitive electronics.
Sn42Bi57.6Ag0.4 flux-cored solder wire is suitable for applications requiring reduced thermal stress and convenient soldering operation.
Compact PCB Assembly
Suitable for small boards and dense components.
SMT Repair
Used for low-temperature rework and maintenance.
Sensitive Components
Helps reduce overheating risks during soldering.
Electronic Maintenance
Convenient for repair stations and manual soldering tasks.
Flexible packaging for sampling and production.
Packaging can be selected according to wire diameter, order quantity, and shipping requirements.
Tube Packaging
10g per tube, suitable for samples, maintenance, and small-quantity use.
Spool Packaging
100g / 200g / 250g / 500g / 1000g / 2000g per roll available.
Carton Packaging
10 rolls per box; carton size can be arranged according to export shipment needs.
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