What diameter is the Harris Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K available in?

Brazing rod diameter selection depends on joint gap and application method. For torch brazing, 1/16 in and 3/32 in rod diameters are most common for HVAC/R copper tube joints. Larger diameter rods (1/8 in+) suit bigger joints and higher-production fill requirements. The filler should flow into the joint by capillary action — correct joint clearance (typically 0.001–0.005 in for tight-fit joints) is more important than rod size for capillary flow.

Does the Harris Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K require brazing flux?

A compatible brazing flux is required for most brazing operations to prevent oxidation on base metal and filler surfaces during heating. Apply flux to joint surfaces before heating. After brazing, remove all flux residue with warm water and a brush — flux residue is corrosive and will attack the joint over time if not cleaned.

What is the correct technique for brazing with the Harris Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K?

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 Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K 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 Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K

Q: What is the Harris Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K used for?

The Harris Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K is a brazing filler metal used in torch brazing, induction brazing, and furnace brazing applications. Brazing produces strong, leak-tight joints on a wide range of base metals at temperatures above 840°F (450°C) but below the base metal's melting point. Select the filler alloy based on base metal type, service temperature, and required joint strength.

SKU: 1070K

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Al-Braze® 1070 cadmium-free aluminum brazing alloy kit with wire and flux

Overview

Harris Al-Braze 1070 Aluminum Brazing Alloy Kit - 1070K

Al-Braze 1070 is a cadmium-free aluminum-silicon brazing filler metal designed for flame brazing aluminum-to-aluminum. It is formulated to melt below the melting point of brazeable aluminum base metals and its narrow melting range provides rapid flow into the capillary. The kit includes 1/16 in. diameter wire and 1/3 oz. Al-Braze EC brazing flux. Complies with the EU Reach & RoHS directive.

Features

Cadmium-free aluminum-silicon brazing alloy
Free-flowing with excellent capillary attraction due to its narrow melting range
Excellent ductility and penetration
Melts below the melting point of brazeable aluminum base metals
Excellent corrosion resistance
Ideal for joining aluminum-to-aluminum.
Not recommended for brazing aluminum directly to non-aluminum alloys as the joint may become brittle
Complies with the EU Reach & RoHS directive
The kit includes 1/16 in. (1.6 mm) 4047 aluminum brazing wire, 1/3 oz. (9.5 g) Al-Braze EC brazing flux

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