Stay-Silv® 6HP Brazing Alloy HARRIS

Stay-Silv® 6HP is a medium melting range silver brazing filler metal developed primarily for copper-to-copper brazing applications. It can also be used for joining copper to brass when proper brazing flux is applied.

The higher phosphorus content creates a highly fluid alloy with lower working temperature characteristics, making it especially suitable for manual brazing as well as applications using brazing rings or automated wire feed systems. Its fluid behavior allows efficient joint filling and penetration in production and installation environments.

The alloy is not recommended for brazing steel or other ferrous base metals since phosphorus promotes brittle compound formation with ferrous materials.

Corrosion resistance is generally comparable to copper base metals; however, phosphorus-containing alloys should not be used where brazed joints are exposed to sulfur or sulfur compounds during service.

Key Benefits

Designed for copper-to-copper brazing applications
Suitable for copper-to-brass joints with proper flux use
Highly fluid alloy supports rapid joint filling
Suitable for manual and automated brazing operations
Performs well with brazing rings and wire feed systems
Provides reliable performance in HVAC and plumbing installations

Specifications

Product Name: Stay-Silv® 6HP
Product Type: Copper-Phosphorus-Silver Brazing Alloy
Suitable Materials: Copper and copper-to-brass joints with flux
Self-Fluxing Feature: Yes, for copper-to-copper brazing
Not Suitable For: Steel and ferrous metals
Flow Behavior: Highly fluid alloy for efficient penetration
Corrosion Behavior: Similar to copper base metals; avoid sulfur exposure
Recommended Flux: No flux required for copper; Stay-Silv® white or ECO SMART® flux recommended for brass applications
Available Forms: Standard wire diameters, preform rings, and spooled wire
Specification Compliance: AWS A5.8 BCuP-4, ASME SFA 5.8 Class BCuP-4, ISO 17672 CuP 283

Applications

Copper piping and plumbing assemblies
HVAC and refrigeration installations
Copper-to-copper joint brazing
Copper-to-brass component joining
Manual and automated brazing operations

FAQs

Is Stay-Silv® 6HP self-fluxing on copper joints?
Yes, no flux is required for copper-to-copper brazing.

Can it be used on brass?
Yes, when proper brazing flux is used.

Can it be used on steel?
No, phosphorus-containing alloys are not recommended for ferrous metals.

Why is it suitable for automated brazing?
Its highly fluid behavior allows consistent feeding and joint filling in automated processes.