Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs

Product Details
Customization: Available
Type: Rolling Wire
Material: CO2
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  • Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs
  • Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs
  • Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs
  • Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs
  • Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs
  • Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs
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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: An Expert's Technical Summary

1. Classification & Overview

  • AWS A5.8 Designation: RBCuZn-D (historically revered as 'Naval Brass')

  • Material Type: A sophisticated Copper-Zinc alloy (Cu-Zn-Sn system), thoughtfully infused with tin to significantly boost corrosion resistance.

  • Key Use: Ideal for joining copper alloys, steel, and cast iron in environments where protection against seawater or chemical corrosion is paramount.

2. Chemical Composition

Table 1: Detailed 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): Boosts resistance to seawater-driven dezincification.

  • Fe (Iron): Contributes to enhanced strength and superior wear resistance.

  • Low Pb/Si: Key in minimizing hot cracking risks during welding.

3. Mechanical Properties

  • As-Deposited:

    • Tensile Strength: Ranges from 410-510 MPa, ensuring robust performance.

    • Hardness: An impressive 85-105 HB for enduring applications.

    • Melting Range: 885-900°C, offering a precise solidus-liquidus transition.

  • Corrosion Resistance: Exhibits exceptional resilience in seawater, marine atmospheres, and when exposed to mild acids or alkalis.

4. Applications

  • Marine Engineering: Perfect for crafting ship propellers, seawater piping, and condenser tubes, delivering unmatched durability.

  • Industrial: Essential for heat exchangers, pump components, and valve bodies, ensuring optimal functionality.

  • Repair: Suited for joining or building up manganese bronzes and high-tensile brasses, providing robust repair solutions.

5. Welding & Brazing Guidelines

  • Process Compatibility:

    • Oxy-Acetylene Welding (OAW): Highly recommended for effective cast iron repairs.

    • Gas Tungsten Arc Welding (GTAW/TIG): Ideal for precise joints, utilizing DCEN polarity for optimal results.

  • Parameters:

    • Flux Requirement: Mandated use of AWS Type FB3-A or borax-based flux to prevent oxidation and ensure quality.

    • Preheat: Recommended 150-260°C, especially for thick sections or cast iron, to achieve best outcomes.

    • Interpass Temp.: Keep ≤200°C to effectively avoid Zn fuming.

6. Handling & Safety

  • Zinc Fume Hazard: A Priority for Safety: Ensure the utmost safety by utilizing state-of-the-art local exhaust ventilation (LEV) systems along with OSHA-approved respirators to protect against zinc fume exposure.

  • Optimal Storage Guidelines: Store in sealed containers with humidity levels below 40% to effectively prevent oxidation and maintain product integrity.

  • Versatile Form Availability: Available in rods ranging from 3 to 6 mm in diameter, as well as in convenient coil form to suit diverse welding applications.

7. Distinguished 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: Essential Usage Clarification:
RBCuZn-D is distinctly not interchangeable with silicon bronzes such as ERCuSi-A or nickel alloys. It is specifically designed for exclusive use with Cu-Zn base metals or for dissimilar joints that demand exceptional seawater resistance.

For comprehensive specifications and detailed guidelines, refer to AWS A5.8:2021 (Specification for Brazing Filler Metals).

Top-Grade RBCuZn-D TIG Welding Rod for Expert Fabrication Needs

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