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High-Performance RBCuZn-D TIG Welding Wire for Expert Results1
Welding Soldering SuppliesHigh-Performance WireTIG Welding Wire
JIANGSU JIUZHOU NEW MATERIAL TECHNOLOGY CO., LTD.
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Product Description RBCuZn-D Brass Welding/Brazing Filler Metal: Technical Summary1. Classification & OverviewAWS A5.8 Designation: RBCuZn-D, traditionally known as 'Naval Brass,' represents a superior choice for demanding applications.Material Type: This Copper-Zinc alloy (Cu-Zn-Sn system) is ingeniously enhanced with tin, providing extraordinary protection against corrosion.Key Use: Expertly designed for joining copper alloys, steel, and cast iron , particularly where resistance to seawater and chemical corrosion is of paramount importance.2. Chemical CompositionTable 1: Composition (Weight %)CuZnSnFePbSiImpurities58.0-61.0%Rem.0.5-1.5%0.25-1.0%≤0.10%0.04-0.25%≤0.50% totalKey Elements:Sn (Tin): Perfectly enhances resistance against seawater-induced dezincification.Fe (Iron): Increases overall strength and provides outstanding wear resistance.Low Pb/Si: Reduces the risk of hot cracking during the welding process.3. Mechanical PropertiesAs-Deposited:Tensile Strength: An impressive range of 410-510 MPa, ensuring reliability and durability.Hardness: Rated between 85-105 HB for robust performance.Melting Range: Wide melting range at 885-900°C, covering solidus to liquidus phases.Corrosion Resistance: Exhibits outstanding resistance in seawater, marine atmospheres, and also against mild acids and alkalis.4. ApplicationsMarine Engineering: Ideal for ship propellers, seawater piping, and condenser tubes, ensuring lasting performance.Industrial: Perfect for use in heat exchangers, pump components, and valve bodies, offering superior functionality.Repair: Efficiently joins and builds up manganese bronzes and high-tensile brasses, providing strength and resilience.5. Welding & Brazing GuidelinesProcess Compatibility:Oxy-Acetylene Welding (OAW): Particularly preferred for meticulous cast iron repairs.Gas Tungsten Arc Welding (GTAW/TIG): Ideal for precision joints, recommended to use DCEN polarity for optimal results.Parameters:Flux Requirement: Utilization of AWS Type FB3-A or borax-based flux is crucial to prevent oxidation during the process.Preheat: Maintain 150-260°C, particularly beneficial for thick sections and cast iron.Interpass Temp.: Should not exceed 200°C, effectively preventing Zn fuming, ensuring safety and quality.6. Handling & Safety GuidelinesCaution: Zinc Fume Hazard: Ensure the use of local exhaust ventilation (LEV) systems and OSHA-approved respirators to maintain a safe working environment.Proper Storage Conditions: Store in sealed containers with less than 40% humidity to effectively prevent oxidation and maintain optimal product quality.Form Availability Options: Available in rods ranging from 3-6 mm in diameter, as well as in convenient coil formats.7. In-Depth Comparison to Similar FillersFillerCompositionKey Use CaseRBCuZn-DCu-Zn-Sn-FeMarine corrosion resistanceRBCuZn-CCu-Zn-Si (no Sn/Fe)General-purpose brazingERCuSn-ACu-Sn (phosphor bronze)Bronze welding, bearingsCritical Note: Essential Information:RBCuZn-D is precisely designed for specialized applications and is not interchangeable or compatible with silicon bronzes (e.g., ERCuSi-A) or nickel alloys. It should be exclusively used for Cu-Zn base metals or for dissimilar joints that require superior seawater resistance.For comprehensive specifications and detailed technical guidelines, please refer to AWS A5.8:2021 (Specification for Brazing Filler Metals), a trusted industry standard..
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