Welding Brazing Rods RBCuZn-C & Why Choose Xinxin CJ301 Flux

       Xinxin RBCuZn-C welding brazing rod is a high-quality low-fuming bronze brazing rod compliant with AWS A5.8 standard, specially designed for reliable joining of carbon steel, copper alloys, cast iron, nickel alloys and stainless steel. With excellent mechanical properties and stable welding performance, it is widely recognized in industrial welding scenarios. To maximize its brazing effect, matching it with Xinxin CJ301 flux is highly recommended, rather than using borax alone. Below is a detailed introduction to the product and the reasons for choosing CJ301 flux.

       About Xinxin RBCuZn-C Welding Brazing Rod

       Xinxin RBCuZn-C brazing rod is manufactured through strict and sophisticated production processes, ensuring consistent quality and reliable performance for every batch. The core production steps include:

       • High-purity raw material selection and strict component testing to ensure no impurities and accurate composition;

       • Precision batching and closed mixing to guarantee uniform distribution of all components;

       • High-temperature smelting (1100-1200℃) and continuous casting to form dense, uniform billets;

       • Multi-pass cold drawing and heat treatment (400-500℃) to reach standard size (1.6mm-5.0mm) and enhance ductility;

       • Strict quality inspection and professional polishing, packaging, and warehousing to ensure product qualification and stability.

       Why Choose Xinxin CJ301 Flux Instead of Borax Alone?

       CJ301 flux is tailor-made to match Xinxin RBCuZn-C brazing rods, solving the limitations of using borax alone and ensuring optimal welding results. Its key advantages are as follows:

       1. Perfect Compatibility with Brazing Temperature: RBCuZn-C brazing rods work at 850-1150℃. CJ301 flux has a melting point of 650℃, which melts in advance to exert its effect. Borax, with a melting point of 741℃, has poor fluidity below 800℃, failing to match the brazing rod’s melting rhythm and affecting efficiency.

       2. Superior Deoxidation for Stable Welds: CJ301 is a scientific mixture of borax (25-35%) and boric acid (65-75%), with stronger deoxidation activity than pure borax. It efficiently removes oxide films on workpieces and brazing rods, avoiding defects like loose welds and sandholes caused by residual oxides from borax alone.

       3. Safer Operation & Easier Post-Treatment: Pure borax produces toxic fumes at high temperatures and leaves insoluble glassy residues that corrode welds. CJ301 reduces toxic fumes and has easily cleanable residues, lowering post-welding difficulty and corrosion risks.

       4. Versatile for Multi-Material Brazing: RBCuZn-C is used for various materials, and CJ301 perfectly adapts to these scenarios. Borax is only suitable for single materials like iron alloys, with narrow applicability.

       Xinxin adheres to the concept of "Quality First, Precision Manufacturing", providing high-quality RBCuZn-C brazing rods and CJ301 flux, along with professional technical support, to meet your industrial welding needs.