MBO is certified ISO 9001 and IATF 16949
SIA alloy
ead-free solder alloy composed of tin and bismuth with the addition of components to improve the overall properties of the alloy.
This alloy allows for the retention of the properties and parameters used in production with standard lead-based alloys like Sn63Pb37 or Sn60Pb40.
It provides a solution to current challenges by offering a lead-free alloy with controlled production costs, thermal and mechanical properties comparable to SAC-type solutions, and cost reductions in operation (reduced energy bills and limited slag formation).
This alloy can be used in all electronic production processes: wave soldering, selective wave, surface-mount soldering (SMT), etc.
This alloy complies with the RoHS 2011/65/EU directive on eliminating lead from solder alloys.
SIA® Lead-Free Solder Alloy
Advantages
- Lead-free: Compliant with RoHS 2011/65/EU directive.
- Low melting point: Eases the soldering process and reduces energy consumption.
- Robust mechanical properties: Similar to traditional lead-based alloys.
- Excellent thermal conductivity: Ensures efficient heat transfer during soldering.
- Good wettability: Results in high-quality solder joints.
Compliance and Successful Testing
- Compliant with RoHS 2011/65/EU directive.
- Successful wettability tests according to IPC J-STD 002 standard.
Technical Characteristics
- Composition: Tin (Sn) – Balance, Bismuth (Bi) – 20 to 40%, Additive elements – 0.2 to 0.8%
- Melting Point (solidification): 180°C – 189°C
- Melting Point (DSC): 139°C – 195°C
- Density: 7.9
- Available forms: Ingots, bars, rods, solid wire, pellets.
- Other forms: Available upon request.
Recommended Applications
- Wave soldering.
- Surface-mount soldering (SMT).
- Electronic applications requiring a high-performance lead-free solder alloy.
Choosing SIA® Alloy means choosing
- A reliable, economical, and environmentally friendly soldering solution.
- A high-performance alloy offering properties comparable to traditional lead-based alloys.
- A product suitable for a variety of electronic soldering applications.
Contact MBO for more information on the SIA® Alloy.
