Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results

Product Details
Customization: Available
Type: Rolling Wire
Material: CO2
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  • Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results
  • Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results
  • Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results
  • Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results
  • Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results
  • Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results
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Basic Info.

Model NO.
RBCuZn-D
Flux Containing
Not Containing Flux
Slag Characteristic
Acidic
Extended Length
>20mm
Transport Package
1kg/5kg/12.5/15kg/Spool
Specification
0.6/0.8/1.0/1.2/1.6/2.0/3.2/4.0mm
Trademark
Jiuzhou
Origin
China
HS Code
7223000
Production Capacity
200000kg/Year

Product Description

RBCuZn-D Brass Welding/Brazing Filler Metal: Technical Summary

1. Classification & Overview

  • AWS A5.8 Designation: RBCuZn-D (formerly known as "Naval Brass") - A time-tested material favored for its exceptional performance in demanding environments.

  • Material Type: Copper-Zinc alloy (Cu-Zn-Sn system) with added tin for enhanced corrosion resistance - a robust choice for superior durability.

  • Key Use: Joining copper alloys, steel, and cast iron where seawater/chemical corrosion resistance is critical - ensuring longevity in harsh conditions.

2. Chemical Composition

Table 1: Composition (Weight %)

Cu Zn Sn Fe Pb Si Impurities
58.0-61.0% Rem. 0.5-1.5% 0.25-1.0% ≤0.10% 0.04-0.25% ≤0.50% total

Key Elements:

  • Sn (Tin): Improves seawater dezincification resistance - a key factor for longevity in marine applications.

  • Fe (Iron): Enhances strength and wear resistance - vital for the durability of welded joints.

  • Low Pb/Si: Minimizes hot cracking during welding - ensuring seamless and robust connections.

3. Mechanical Properties

  • As-Deposited:

    • Tensile Strength: 410-510 MPa - offering substantial resistance to tensile forces.

    • Hardness: 85-105 HB - ensuring a solid and resilient surface.

    • Melting Range: 885-900°C (solidus-liquidus) - providing a wide thermal processing window.

  • Corrosion Resistance: Excellent in seawater, marine atmospheres, and mild acids/alkalis - ideal for environments where other materials fail.

4. Applications

  • Marine Engineering: Ship propellers, seawater piping, condenser tubes - pivotal components of marine structures.

  • Industrial: Heat exchangers, pump components, valve bodies - essential for industrial fluid handling and processing.

  • Repair: Joining/building up manganese bronzes and high-tensile brasses.

5. Welding & Brazing Guidelines

  • Process Compatibility:

    • Oxy-Acetylene Welding (OAW): Preferred for cast iron repairs - ensuring high-quality bonds in challenging materials.

    • Gas Tungsten Arc Welding (GTAW/TIG): For precision joints (use DCEN polarity) - ideal for creating intricate and precise welds.

  • Parameters:

    • Flux Requirement: AWS Type FB3-A or borax-based flux (mandatory to prevent oxidation) - critical for pristine weld quality.

    • Preheat: 150-260°C (for thick sections/cast iron) - optimizing material readiness and consistency.

    • Interpass Temp.: ≤200°C to avoid Zn fuming - essential for maintaining a safe and efficient welding atmosphere.

6. Handling & Safety

  • Zinc Fume Hazard: Employ effective control measures such as local exhaust ventilation (LEV) and ensure the use of OSHA-approved respirators to maintain a safe working environment.

  • Storage: Store in sealed containers with less than 40% humidity to effectively prevent oxidation and maintain the product's superior quality.

  • Form Availability: Available in convenient forms such as rods with diameters ranging from 3-6 mm and in coil form for versatile application needs.

7. Comparison to Similar Fillers

Filler Composition Key Use Case
RBCuZn-D Cu-Zn-Sn-Fe Marine corrosion resistance
RBCuZn-C Cu-Zn-Si (no Sn/Fe) General-purpose brazing
ERCuSn-A Cu-Sn (phosphor bronze) Bronze welding, bearings

Critical Note:
RBCuZn-D is not interchangeable with silicon bronzes like ERCuSi-A or nickel alloys. It should be used exclusively for Cu-Zn base metals or in dissimilar joints that demand seawater resistance, ensuring optimal performance.

For complete specifications, please refer to AWS A5.8:2021 (Specification for Brazing Filler Metals) for authoritative guidance..

Superior Quality RBCuZn-D MIG Welding Wire for Optimal Results

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