SOLDERING: SOLDER, FLUXES, SOLDERING EQUIPMENT
NSL low-melting solid solder wire
Country: Germany · Model: Сплошная припой-проволока без флюса (в т.ч. легкоплавкая NSL
Flux-free solid solder wire, drawn on wire-drawing benches without surface defects, for automatic feeding systems. Low-melting Bi-Sn alloys are available.
- Type
- solid wire
- Alloys
- Sn63Pb37, Sn60Pb40, SAC305, Sn99.3Cu0.7, S-Bi58Sn42, Bi57Sn42Ag1 (NSL, 137–139 °C)
Technical specifications
| Type | solid wire |
|---|---|
| Alloys | Sn63Pb37, Sn60Pb40, SAC305, Sn99.3Cu0.7, S-Bi58Sn42, Bi57Sn42Ag1 (NSL, 137–139 °C) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Drawn to an exact diameter on special wire drawing units, this solid solder wire has a smooth surface free of irregularities. This uniformity is particularly important when the wire is processed in an automatic wire feeder, where consistent geometry ensures reliable feeding. The solid wire is produced on the same machines used for the manufacturer's flux-cored wires and passes through the same quality control.
The low-melting NSL variants are based on bismuth-tin alloys. The solid wires Bi58Sn42 (S-Bi58Sn42) and Bi57Sn42Ag1 are produced as soft solders according or analogous to DIN EN ISO 9453 (alloy number 301). With a melting range of only 137–139 °C, they allow reworking and general manual soldering at the lowest soldering temperatures. This makes them suitable where components or assemblies must be soldered with minimal thermal load.
Beyond the low-melting NSL alloys, the solid wire is available in conventional tin-lead and lead-free alloys, including Sn63Pb37, Sn63Pb37E, Sn60Pb40, Pb50Sn50, SAC305, Sn95,5Ag3,8Cu0,7, Sn96,5Ag3,0Cu0,5, Sn99.3Cu0.7 (Sn99,3Cu0,7), Sn97Cu3, Sn97,8Bi1,5Cu0,7 SN100CV and Sn98,5Bi1,5 SN100CVe. The material is an ultra-pure solder intended for challenging soldering tasks.
Two of the most common applications for solid solder wire are use in small solder baths and refilling larger solder baths. Feeding the wire slowly and continuously into the bath keeps the fill level as constant as possible without suddenly lowering the operating temperature. The precise, uniform diameter supports this continuous feeding, whether manual or through automatic wire feed equipment.
Key characteristics include a precise diameter without surface irregularities, suitability for automatic wire feeders, and ultra-pure alloy quality. The low-melting NSL alloys Bi58Sn42 and Bi57Sn42Ag1 have a melting range of 137–139 °C and are produced to or analogous to DIN EN ISO 9453 (alloy number 301). The wire is manufactured on the same production equipment and under the same quality control as flux-cored solder wires. A technical datasheet is available for detailed specifications.
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