Welded Surface ECoCr-A
Core Positioning: A cobalt-based surfacing solution with wear resistance and corrosion resistance for high-temperature (650°C) and high-pressure environments
1. Basic Product Information
| Item | Specification |
|---|---|
| Brand Name | Ocean Welding |
| Model Standard | AWS ECoCr-A |
| Place of Origin | Zhejiang Province, China (Mainland) |
| Electrode Type | Titanium-calcium type cobalt-chromium-tungsten alloy core cobalt-based surfacing electrode |
| Diameter Specification | 2.5mm, 3.2mm, 4.0mm |
| Length Range | 300mm - 500mm |
| Welding Current/Temperature | Compliant with international standards (compatible with mainstream welding equipment) |
| Welding Polarity Requirement | DC Reverse Connection |
2. Core Performance Advantages
1. Triple Protection: High-Temperature Resistance + Wear Resistance + Corrosion Resistance
High-Temperature Stability: The deposited metal maintains excellent mechanical properties at a high temperature of 650°C, with no risk of hardness attenuation or cracking.
Strong Wear Resistance: Rockwell hardness (HRC) ≥ 40, reinforced by 3.0%-6.0% tungsten (W) element, which can resist high-frequency friction loss of components.
Corrosion Resistance: With a chromium (Cr) content of 25%-32%, it effectively resists high-temperature oxidation and medium corrosion, suitable for complex working conditions in chemical, electric power and other industries.
2. Strong Process Compatibility
Complies with international general welding parameters, no need for special equipment modification, and even novices can master it quickly.
The deposited metal has a smooth formation, and the content of manganese (Mn) and silicon (Si) is ≤ 2.0%, reducing welding defects such as pores and slag inclusions.
3. Chemical Composition of Deposited Metal (Mass Fraction)
| Element | Content Range (%) | Function Description |
|---|---|---|
| C | 0.7 - 1.4 | Improves weld hardness and structural strength |
| Mn | ≤2.0 | Optimizes welding fluidity and reduces defects |
| Si | ≤2.0 | Enhances the oxidation resistance of deposited metal |
| Cr | 25 - 32 | Core anti-corrosion element, resists oxidation |
| W | 3.0 - 6.0 | Enhances wear resistance and extends component service life |
| Co | Remainder | Ensures matrix stability and improves toughness |
| HRC | ≥40 | Rockwell hardness standard to measure wear resistance |
4. Application Scenarios
Designed specifically for working conditions of high temperature, high pressure, strong impact, and alternating hot and cold, the core application fields include:
Energy Industry: Surfacing of high-temperature and high-pressure valves, boiler pipe joints;
Metallurgical Industry: Repair of hot shearing blades and wear-resistant components of hot rolling mills;
Machinery Manufacturing: Strengthening of high-temperature molds and vulnerable parts of forging equipment;
Chemical Industry: Welding of sealing surfaces of high-temperature reaction kettles and corrosion-resistant pipelines.
5. Packaging & Delivery
1. Packaging Specification
Inner Layer: 1kg/plastic box (moisture-proof and anti-collision, protecting the electrode coating);
Outer Layer: 20kg/corrugated carton (facilitates warehouse stacking and reduces logistics loss).
2. Delivery Cycle
Under the condition of meeting the Minimum Order Quantity (MOQ), delivery will be completed within 20 days;
Urgent production for bulk orders is supported, and specific details can be negotiated with the manufacturer.
6. Procurement Support
Wholesale Cooperation: Provides enterprise-level bulk procurement plans, with higher discount rates for larger order quantities;
Quality Assurance: Each batch of products is accompanied by an SGS test report, supporting ex-factory quality traceability;
Service Connection: A professional technical team provides welding process guidance to solve technical problems during use.
Contact Us: For quotations, samples or technical materials, please visit the official website www.hzdayang.com or contact the manufacturer's sales team directly
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