TIG FILLER WIRE TOBIN BRONZE RBCUZN-A 1.6MM
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Product Overview
This 1.6mm TIG Filler Wire (RBCuZn-A – Tobin Bronze) is a premium copper-zinc brazing alloy rod engineered for high-strength, low-fuming braze welding applications. Also known as low-fuming bronze filler rod, this wire is specifically formulated with silicon and manganese additions to significantly reduce zinc fume emission during welding, making it a safer and more efficient choice for TIG brazing, oxy-acetylene brazing, and braze-welding of dissimilar and similar metals.
Manufactured to meet AWS A5.7 / ASME SFA-5.7 classification standards, this filler wire delivers consistent arc performance, excellent wetting action, and strong, ductile joints across a wide range of base metals.
Key Specifications
| Specification | Detail |
|---|---|
| Classification | RBCuZn-A (AWS A5.7 / ASME SFA-5.7) |
| Common Name | Tobin Bronze / Low Fuming Bronze |
| Diameter | 1.6mm (0.063") |
| Base Composition | Copper-Zinc alloy with Silicon (Si) & Iron (Fe/Mn) additions |
| Process Compatibility | TIG (GTAW), Oxy-Acetylene, Braze Welding |
| Color | Bright bronze/gold finish |
| Standard Length | 1 meter straight lengths (typical packaging) |
| Melting Point | Approx. 870–895°C |
Key Features & Benefits
- Low Fuming Formula – Reduced zinc oxide fume generation compared to standard bronze filler rods, improving operator safety and weld visibility
- High Tensile Strength – Produces braze joints with excellent mechanical strength, typically exceeding 370 MPa (54,000 psi)
- Excellent Wetting & Flow – Smooth puddle control and superior flow characteristics for clean, uniform bead appearance
- Versatile Joining Capability – Ideal for joining dissimilar metals including steel-to-cast iron, galvanized steel, and copper alloys
- Corrosion Resistant – Strong resistance to atmospheric and marine corrosion, suitable for outdoor and industrial environments
- Ductile Deposits – Maintains flexibility and impact resistance in the finished joint, reducing cracking risk
- Precision 1.6mm Diameter – Ideal for thin-to-medium gauge material braze welding requiring controlled heat input
Applications
This TIG filler wire is widely used across:
- Automotive repair – exhaust systems, brackets, and body panel brazing
- Sheet metal fabrication – galvanized steel and thin-gauge joints
- Cast iron repair – engine blocks, machine housings, pump bodies
- Pipe and tank fabrication – brass and bronze fittings
- General maintenance & repair welding – tool repair, hardfacing surfaces, build-up applications
- HVAC and plumbing fabrication – brass and copper component joining
- Shipbuilding and marine fabrication – due to strong corrosion resistance
Compatible Base Metals
Steel, galvanized steel, cast iron, copper, brass, bronze, and nickel alloys — making this one of the most versatile filler wires for cross-metal joining projects.
Why Choose This TIG Filler Wire?
Whether you're a professional welder, fabrication shop, or DIY metalworking enthusiast, this 1.6mm Tobin Bronze RBCuZn-A filler wire offers the reliability, strength, and low-fume safety profile needed for demanding braze welding jobs. Its precise diameter makes it ideal for TIG torch feeding, ensuring consistent, professional-grade weld beads with minimal spatter and porosity.
This product is priced “per KG”. The minimum quantity available to purchase is shown in the "Pack Qty".