What is the correct technique for brazing with the Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R?

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.

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Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R

Q: What is the Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R used for?

The Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R 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.

Q: What diameter is the Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R available in?

The Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R is available in 1/8 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.

Q: Does the Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R require brazing flux?

When brazing copper to copper with phos-copper alloy, the phosphorus content acts as a deoxidizer and eliminates the need for separate flux. When joining copper to dissimilar metals (brass, bronze, steel), a compatible brazing flux (such as Harris Stay-Silv White Flux) must be applied to all surfaces that the alloy will contact.

Q: What package size is the Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R available in, and how should I store it?

The Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R is available in 25 lb packages. Store brazing rod in a clean, dry location away from oils and solvents. Silver alloys are stable at room temperature with no special storage requirements. Protect rod surfaces from contamination that could interfere with flux wetting and flow during brazing.

SKU: 6H636R

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Stay-Silv 6HP phos-copper brazing alloy 1/8 x 36 in. x 1 ea. 25 lb. box

Overview

The Heavy Duty Welding Gloves are made of premium shoulder split cowhide which provides exceptional durability and abrasion protection. The FlameSoft three layer hand design combines premium cowhide, flame retardant foam and soft flame retardant cotton. This supremely comfortable design offers excellent heat resistance and unique safety features. The Kevlar stitching and continuous welted seams increase the service life of the glove. Available in sizes Medium to Extra Large.

Features

Premium black & tan split cowhide provides superior durability and abrasion protection
FlameSoft three layer design focused on increased burn protection, heat resistance and comfort
Double reinforced thumb enhances wear resistance in high stress areas
Continuous welting and 5-ply Kevlar stitching to increase longevity
6 inch soft twill cotton inner cuff absorbs moisture

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Product Overview

Features

Premium black & tan split cowhide provides superior durability and abrasion protection
FlameSoft three layer design focused on increased burn protection, heat resistance and comfort
Double reinforced thumb enhances wear resistance in high stress areas
Continuous welting and 5-ply Kevlar stitching to increase longevity
6 inch soft twill cotton inner cuff absorbs moisture

Harris Stay-Silv 6HP Phos-Copper Brazing Alloy - 1/8 in (3.2 mm) - 25 lb Box - 6H636R

Product Overview

Features

Product Reviews

Questions & Answers