95/5 Tin-Antimony Solder

95/5 tin-antimony solder is a lead-free alloy identified as ASTM B32 Sb5, used in soft soldering when higher mechanical strength than common tin-lead alloys is required and compatibility is needed with copper, refrigeration, heating and technical networks. Antimony modifies tin behavior to obtain a firmer joint, so this reference is often specified in installations where lead is not desired and industrial performance is required. It differs from 95/5 tin-silver because it does not contain silver, and from 99/1 tin-copper because its main alloying element is antimony. It must not be confused with brazing solders; the procedure, flux and working temperature correspond to soft soldering.

The values in this table are nominal reference data. Before using them in engineering decisions, review the technical notice at the end of this page and your project's welding procedure specification (WPS).

Selection guide

• Choose 95/5 Sb5 when the specification requires lead-free tin-antimony.
• Compare with 99/1 tin-copper if the main criterion is cost in copper piping.
• Compare with 95/5 tin-silver if the project requires silver in the alloy.
• Do not use it on galvanized material if the flux manufacturer's procedure restricts it.
• Avoid using it on brass: alloy Sb5 data sheets do not recommend it for that base metal.

Use recommendations

• Prepare clean, fitted and oxide-free surfaces before applying heat.
• Use flux compatible with tin-antimony and the base metal.
• Heat uniformly to avoid areas without wetting or excess residue.
• Clean the joint after cooling and verify continuity or leak tightness according to service.

SoldaForce handles orders for 95/5 tin-antimony solder for industrial maintenance and technical installation. We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp with quantity, packaging and application.