What is the Harris 4531 - Safety-Silv 45 Silver Brazing Alloy - 1/16 in (1.6 mm) - 1 toz Cup used for?

The Harris 4531 - Safety-Silv 45 Silver Brazing Alloy - 1/16 in (1.6 mm) - 1 toz Cup is a silver brazing alloy (Safety-Silv 45). Silver brazing alloys produce strong, ductile joints on ferrous metals, copper, copper alloys, and many dissimilar metal combinations. They flow at lower temperatures than conventional copper-phosphorus alloys, reducing base metal distortion. Always use the appropriate brazing flux (Harris Stay-Silv White or Black Flux) with silver brazing alloys.

What diameter is the Harris 4531 - Safety-Silv 45 Silver Brazing Alloy - 1/16 in (1.6 mm) - 1 toz Cup available in?

The Harris 4531 - Safety-Silv 45 Silver Brazing Alloy - 1/16 in (1.6 mm) - 1 toz Cup is available in 1/16 diameter. Rod or wire diameter selection depends on joint gap clearance and feeding method: narrow-gap joints with tight clearances benefit from thinner rod (easier to feed into the joint), while larger-gap joints require more filler and may work better with thicker rod. Pre-placed rings or preforms are available for production brazing of consistent joint geometries.

Does the Harris 4531 - Safety-Silv 45 Silver Brazing Alloy - 1/16 in (1.6 mm) - 1 toz Cup require brazing flux?

Silver brazing alloys require a compatible brazing flux to prevent oxidation during heating and to aid flow. Harris Stay-Silv White Flux is recommended for most silver brazing applications at brazing temperatures up to approximately 1600°F. For higher-temperature alloys or extended-cycle brazing, Stay-Silv Black Flux handles temperatures up to approximately 1800°F. Apply flux to all base metal surfaces before heating.

What is the correct technique for brazing with the Harris 4531 - Safety-Silv 45 Silver Brazing Alloy - 1/16 in (1.6 mm) - 1 toz Cup?

Proper joint preparation is critical for sound brazed joints: clean all joint surfaces to remove oil, oxide, and scale using emery cloth or a wire brush. Maintain proper joint clearance for capillary flow. Heat the base metal — not the filler rod — to brazing temperature before touching the rod to the joint. The heat-to-flow sequence ensures proper capillary action. Allow the joint to air cool before quenching to avoid thermal shock cracking.

What package size is the Harris 4531 - Safety-Silv 45 Silver Brazing Alloy - 1/16 in (1.6 mm) - 1 toz Cup available in, and how should I store it?

Brazing alloys are sold in various rod lengths and weights — common sizes include 1 lb, 5 lb, and 25 lb packages. Store in a dry location free from oil and solvent contamination. Silver brazing alloys are stable at room temperature and do not require special controlled-atmosphere storage. Keep surfaces clean to ensure proper flux adhesion and capillary flow.

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Harris Safety-Silv 45 4531 Brazing Rod 1/16"

SKU: 4531

$101.52

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Safety-Silv 45 high silver brazing alloy 1/16 in. x 1 ea. 1 toz. cup

Certification: ANSI/AWS A5.8;ASME SFA 5.8;QQ-B-654A Class BAg-5;ISO 17672 Ag 245

Overview

Safety-Silv® 45 is an excellent General Purpose silver brazing filler metal. Used for decades, this alloy is a popular choice for brazing copper, brass, steel, and stainless steel. A cadmium-free filler metal with a melting range of approximately 145◦F, Safety-Silv® 45 provides good fillet forming qualities and is suitable for filling loose connections. This filler metal has excellent joint strength and ductility at a moderately higher temperature. Preferred base metal clearance range is 0.003 in. - 0.006 in. Color is silver to light yellow. Conforms to the EU Reach & RoHS directive.

Features

General purpose, cadmium-free silver brazing alloy
Excellent joint strength and ductility at moderately higher temperature with a melting range of approximately 145◦F (63◦C)
Good ductility and capillary flow
Fillet forming qualities are suitable for filling loose connections
Recommended joint clearance of 0.003 in. - 0.006 in. (0.08 mm - 0.15 mm)
Popular choice to braze copper, brass, steel and stainless steel
Fluidity rating of 6.5
Complies with the EU Reach & RoHS directive

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Q&A

Product Overview

Features

General purpose, cadmium-free silver brazing alloy
Excellent joint strength and ductility at moderately higher temperature with a melting range of approximately 145◦F (63◦C)
Good ductility and capillary flow
Fillet forming qualities are suitable for filling loose connections
Recommended joint clearance of 0.003 in. - 0.006 in. (0.08 mm - 0.15 mm)
Popular choice to braze copper, brass, steel and stainless steel
Fluidity rating of 6.5
Complies with the EU Reach & RoHS directive

Harris Safety-Silv 45 4531 Brazing Rod 1/16"

Product Overview

Features

Product Reviews

Questions & Answers