Stay-Silv® 2LP phos-copper brazing alloy 1/8 x 1/8 x 36 in. x 1 ea. 25 lb. box.
The Harris Stay-Silv 2LP Phos-Copper Brazing Alloy - 1/8 x 1/8 in (3.2 x 3.2 mm) - 25 lb Box - 2L636S is a phosphor-copper brazing alloy (BCuP-2). Phos-copper alloys are self-fluxing on copper and copper alloys — no separate flux is required when brazing copper to copper. However, flux IS required when brazing copper to brass, bronze, or steel. These alloys are widely used in HVAC/R applications for copper tubing joints.
- Compatible families: Stay-Silv
- Available diameters: 1/8"
Brazing alloys are selected by the base-metal pairing and the joint clearance. Silver content and flux requirements drive both cost and strength of the finished joint.
Stay-Silv 2LP is an economical, Phos Copper brazing filler metal alloy. It features a lower phosphorus content than Stay-Silv 2 yielding a wider melting range. This improves the alloy's ability to fill non-uniform clearances. Complies with the EU Reach & RoHS directive. Complies with ISO 17672 CuP 279 and EN 1044 CP 105
- Cost saving, low phosphorus alloy
- Wider melting range than Stay-Silv 2
- Can fill non-uniform clearances
- Brazing range of 1350◦F - 1550◦F (732◦C - 843◦C)
- Fluidity rating 3
- Recommended joint clearance of 0.003 in. - 0.006 in. (0.08 mm - 0.15 mm)
- Corrosion resistance is generally similar to the copper base metal, but phosphorus containing alloys, including Stay-Silv 2LP, should not be used if the braze is exposed to sulfur or sulfur compounds in service
- Flux not required for copper brazing as it is self-fluxing. For brazing brass or copper-to-brass Stay-Silv white flux is suitable for most applications. Harris Eco Smart boric acid free flux, powder or paste, is an excellent choice to promote sound brazed assemblies
- Complies with the EU Reach & RoHS directive