HS221 Copper Alloy Welding Rod
Certification Standards: ISO 9001, SGS
Manufacturer: Hangzhou Dayang Welding Materials Co., Ltd. (Official Website: www.hzdayang.com)
I. Core Advantages of the Product
Guided by addressing the actual needs of industrial welding, the HS221 copper alloy welding rod has formed differentiated competitiveness in key performance dimensions:
Superior Weather Resistance: The brazed joints can resist long-term friction and corrosion from corrosive media (such as acid-base environments). Suitable for scenarios like mechanical transmission components and pipeline connections, it extends the service life of workpieces by more than 30% and reduces the annual maintenance costs of enterprises.
High Structural Stability: The deposited metal has excellent strength, which can withstand stress impacts during equipment operation, prevent joint cracking and deformation, ensure the structural safety of welded parts, and meet the strict requirements of precision manufacturing for connection reliability.
Adaptability for Efficient Operation: The surface of the welding rod is clean and smooth, and can be used directly without additional pretreatment (such as rust removal and grinding), shortening the welding preparation time and improving work efficiency by 25%. When using oxyacetylene brazing, rapid heating with an oxidizing flame can reduce the evaporation of zinc, avoid porosity defects, and ensure welding quality from the source of the process.
II. Detailed Technical Parameters
1. Executive Standards
| Standard Category | Standard Name/Number | Core Function |
|---|---|---|
| Enterprise Standard | HS221 | Ensures the consistency of production and basic quality of the product |
| American Standard | AWS A5.8 Standard for Copper and Copper Alloy Brazing Filler Metals | Adapts to the North American market and meets the compliance requirements of multinational enterprises |
| European Standard | BS EN14640 Standard for Non-Ferrous Metal Brazing Filler Metals | Complies with EU environmental protection and performance requirements, expanding overseas applications |
2. Chemical Composition of Deposited Metal (Mass Fraction)
| Element | Content Range | Function Description |
|---|---|---|
| Copper (Cu) | 56%-62% | Core component, ensuring the basic strength and electrical conductivity of the joint |
| Tin (Sn) | 0.5%-1.5% | Improves the fluidity of the welding rod, enhances joint toughness, and prevents brittleness and cracking |
| Silicon (Si) | 0.1%-0.5% | Optimizes corrosion resistance, improves welding processability, and reduces welding slag |
| Aluminum (Al) | ≤0.01% | Strictly controls impurities to prevent adverse effects on welding stability |
| Lead (Pb) | ≤0.05% | Low lead content and environmentally friendly, complying with global safety and environmental regulations |
| Other Impurities | ≤0.5% | Low total impurity content, ensuring the purity and mechanical properties of the weld seam |
3. Physical and Process Parameters
Melting Point: Approximately 900°C, suitable for medium-to-high temperature brazing scenarios, avoiding overheating and deformation of the base metal due to high temperatures.
Welding Rod Diameter: 1.6mm-5.0mm (multiple specifications available), covering the welding needs of precision small parts (such as electronic components) to large-scale components (such as industrial pipelines).
III. Suitable Processes and Application Scenarios
1. Compatible Brazing Processes
| Process Type | Operation Characteristics | Applicable Scenarios |
|---|---|---|
| Gas Flame Brazing | Simple equipment and flexible operation | On-site maintenance and welding of small workpieces (such as copper water pipe joints and hardware accessory assembly) |
| High-Temperature Brazing | High joint strength and high-temperature resistance | Scenarios with high requirements for connection strength, such as mechanical parts and molds |
| Salt Bath Dip Brazing | Uniform temperature and high efficiency | Mass welding of small-to-medium batch production (such as electronic components and precision hardware) |
2. Core Application Fields
Machinery Manufacturing: Connection of cast iron machine tool components and welding of copper alloy gears.
Pipeline Engineering: Brazing of copper water supply pipes and industrial pipeline joints (ensuring sealing and pressure resistance).
Hardware Processing: Connection of brass accessories with dissimilar materials such as stainless steel and copper, expanding the design space of products.
IV. Packaging, Transportation and Supply Guarantee
1. Packaging Specifications
| Packaging Type | Specification | Features |
|---|---|---|
| Small-Batch Packaging | 5kg/roll, 10kg/roll | Wrapped in shrink film, moisture-proof and dust-proof, suitable for short-term production or small-batch trial use |
| Large-Batch Packaging | 500kg/wooden case | High-strength wooden case, pressure-resistant and damage-proof, suitable for long-distance transportation and large-scale production inventory |
2. Supply Services
Delivery Cycle: Delivery is completed within 25 days after order confirmation to ensure the smooth progress of the production plan.
Procurement Support: Wholesale and customization are supported, and cost-effective bulk solutions are provided to meet the needs of enterprises of large, medium and small sizes.
V. Product Consultation and Procurement
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Direct Supply from Manufacturer: Hangzhou Dayang Welding Materials Co., Ltd. guarantees quality and supports national distribution. Welcome to consult and purchase!
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