What is the Harris 50NCW07520L - Safety-Silv 50NCW Flux-Cored Silver Brazing Alloy - 0.075 in (1.9 mm) - 15 toz Tube used for?

The Harris 50NCW07520L - Safety-Silv 50NCW Flux-Cored Silver Brazing Alloy - 0.075 in (1.9 mm) - 15 toz Tube is a silver brazing alloy (Safety-Silv 50N). 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 50NCW07520L - Safety-Silv 50NCW Flux-Cored Silver Brazing Alloy - 0.075 in (1.9 mm) - 15 toz Tube available in?

The Harris 50NCW07520L - Safety-Silv 50NCW Flux-Cored Silver Brazing Alloy - 0.075 in (1.9 mm) - 15 toz Tube is available in 5/64 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 50NCW07520L - Safety-Silv 50NCW Flux-Cored Silver Brazing Alloy - 0.075 in (1.9 mm) - 15 toz Tube 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 50NCW07520L - Safety-Silv 50NCW Flux-Cored Silver Brazing Alloy - 0.075 in (1.9 mm) - 15 toz Tube?

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 50NCW07520L - Safety-Silv 50NCW Flux-Cored Silver Brazing Alloy - 0.075 in (1.9 mm) - 15 toz Tube 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.

Harris Safety-Silv 50NCW Flux-Core Wire 0.075"

SKU: 50NCW07520L

$1,972.20

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Safety-Silv 50N flux-cored high silver brazing alloy 0.075 x 20 in. x 1 ea. 15 toz. tube/box

Overview

Safety-Silv 50NCW high silver, Flux Cored, brazing filler metal is engineered for brazing copper, brass, steel, nickel alloys, and Stainless Steel. This alloy contains a continuous internal core of brazing flux. No additional flux is required. Safety-Silv 50NCW exhibits improved corrosion resistance on Stainless Steel compared to other silver brazing alloy deposits. It is frequently used to braze tungsten carbide to steel and tool steel for cutting tips, drill bits, and saw blades. The 2% nickel addition improves wetting and strength. Conforms to the EU Reach & RoHS directive.

Features

Cadmium-free brazing alloy is good replacement for cadmium-bearing alloys
The 2% nickel addition improves wetting and strength
Low melting braze alloy with good flow characteristics
Exhibits improved corrosion resistance on Stainless Steel compared to other silver braze alloy deposits
Engineered for brazing copper, brass, steel, nickel alloys, and Stainless Steel
Frequently used to braze tungsten carbide to steel and tool steel for cutting tips, drill bits, and saw blades
Complies with the EU Reach & RoHS directive
Flux inner core means no manual flux application is required providing significant cost savings

Reviews

Q&A

Product Overview

Features

Cadmium-free brazing alloy is good replacement for cadmium-bearing alloys
The 2% nickel addition improves wetting and strength
Low melting braze alloy with good flow characteristics
Exhibits improved corrosion resistance on Stainless Steel compared to other silver braze alloy deposits
Engineered for brazing copper, brass, steel, nickel alloys, and Stainless Steel
Frequently used to braze tungsten carbide to steel and tool steel for cutting tips, drill bits, and saw blades
Complies with the EU Reach & RoHS directive
Flux inner core means no manual flux application is required providing significant cost savings

Harris Safety-Silv 50NCW Flux-Core Wire 0.075"

Product Overview

Features

Product Reviews

Questions & Answers