Tin Bar Sn63Pb37SW Kilobar – Approx. 1 kg (Price per kg)
Sn63Pb37SW from Balver Zinn is a classic leaded solder alloy developed for professional soldering processes where maximum process stability, excellent wetting properties, and beautiful solder joints are desired. The alloy consists of 63% tin and 37% lead and is one of the most widely used solder alloys in the electronics industry.
This variant is supplied as a kilobar of approx. 1 kg and is suitable for wave soldering, selective soldering, dip soldering, and tinning of wires and components.
Sn63Pb37 – the classic eutectic solder alloy
Sn63Pb37 is known as the traditional standard alloy of the electronics industry and continues to be used in a wide range of applications where leaded processes are permitted or required.
As a eutectic alloy, Sn63Pb37 has a precise melting point of 183 °C without a plastic transition range. This provides a rapid transition between liquid and solid states, contributing to high process control and reducing the risk of soldering defects.
Benefits include:
• Excellent wetting properties
• Rapid solidification
• Low risk of cold solder joints
• High process stability
• Beautiful and shiny solder joints
• Proven reliability
Suitable for wave and selective soldering
Sn63Pb37SW is developed for industrial soldering processes and is typically used for:
• Wave soldering
• Selective soldering
• Dip soldering
• Tinning of wires and components
• Electronics production
• Industrial electronics
• Automotive electronics
• Service and maintenance
The alloy can be used in both atmospheric air and nitrogen-based processes.
High solder quality and beautiful solder appearance
Sn63Pb37SW is known for delivering uniform solder joints of high quality and with a beautiful visual result.
The product contributes to:
• Shiny solder points
• Good through-hole fill
• Reduced risk of solder bridges
• Stable process over long production runs
• High reproducibility
This makes the alloy a popular choice in productions where quality and process control are crucial.
Ideal for maintenance and refilling
The kilobar is suitable for both initial filling and continuous maintenance of solder baths, where precise dosing and easy handling are desired.
Its compact size makes the product particularly useful for:
• Maintenance of smaller solder baths
• Laboratories and development departments
• Prototype production
• Service tasks
• Production lines with lower material consumption
Advantages of Sn63Pb37SW
• Classic eutectic Sn63Pb37 alloy
• Leaded solder alloy
• Excellent wetting properties
• Shiny solder joints
• High process stability
• Suitable for wave soldering and selective soldering
• Good through-hole fill
• Reduces the risk of solder bridges
• Easy handling as a kilobar
Technical specifications
Manufacturer: Balver Zinn
Product name: Sn63Pb37SW
Product type: Leaded tin bar
Delivery form: Kilobar
Weight: Approx. 1 kg
Dimensions: 325 × 28 × 15 mm
Alloy type: Sn63Pb37SW
Composition: Sn63Pb37
Tin content: 62.5-63.5 %
Lead content: Remainder
Melting point: 183 °C
Recommended working temperature: 245-300 °C
Application: Wave, selective, and dip soldering
Production standard: WBZ BaTiLoy
DIN EN ISO 9453: Alloy 102
RoHS compliant: No (leaded alloy)