High Temperature Resistance Nickel-iron Alloy Welding Rod Electrode ENiFe-CI Ni55 Cast Iron Repair

Product Information
ENiFe-CI Ni55 is a high-performance electrode designed for welding cast iron materials with a nickel-based composition. This electrode is ideal for Shielded Metal Arc Welding (SMAW) and is widely used for repairing and rebuilding cast iron components that are subject to high mechanical stress. It is known for its excellent weldability, high strength, and resistance to wear and corrosion, making it the perfect choice for repairing broken or worn-out cast iron parts.

Also known as:

• Nickel-Iron Cast Iron Electrode

• AWS A5.15 ENiFe-CI Ni55

• UNS W86225 Electrode

Material Composition:

• Nickel (Ni) 55%

• Iron (Fe) 40%

• Carbon (C) 3.0% max

• Manganese (Mn) 2.0% max

• Silicon (Si) 1.0% max

• Phosphorus (P) 0.05% max

• Sulfur (S) 0.05% max

• Chromium (Cr) ≤ 1.0%

Appearance / Color:
The ENiFe-CI Ni55 electrode features a solid nickel-iron core with a dark gray to black flux coating, providing a clean and smooth welding process.

Core Wire Diameter:

• 2.5 mm, 3.2 mm, 4.0 mm, and 5.0 mm (custom sizes available upon request)

Flux Coating:
The flux coating is specifically formulated to provide a stable arc, reduce spatter, and ensure strong, crack-resistant welds. It offers low hydrogen output, which is essential in producing high-quality welds for cast iron materials.

Packaging:
Electrodes are typically packed in 5.0 kg sealed boxes to maintain their integrity during transport and storage.

Characteristics

• High Nickel Content: ENiFe-CI Ni55 electrodes contain 55% nickel, providing excellent corrosion resistance and high mechanical properties for cast iron repairs.

• Wear Resistance: The electrode ensures high wear resistance, ideal for parts subjected to mechanical friction and stress, such as engine blocks and machinery components.

• Versatile Application: Suitable for welding both gray iron and ductile iron, as well as repairs involving cast iron and steel.

• Good Crack Resistance: Its low hydrogen content minimizes the risk of cracking, ensuring that welds maintain their integrity under dynamic loads.

• Easy to Use: Provides smooth arc characteristics with minimal spatter, allowing for an easy and efficient welding experience.

Technology
ENiFe-CI Ni55 electrodes are produced using advanced manufacturing techniques to ensure a uniform nickel-iron alloy composition. The core wire is designed for optimum weldability, offering easy arc ignition and consistent performance. The flux coating is developed to protect the weld pool from atmospheric contamination and stabilize the arc, ensuring clean, high-quality welds.

The electrode is engineered to provide superior bonding with cast iron materials, with excellent mechanical strength and corrosion resistance. The coating also ensures that the arc remains smooth, reducing the likelihood of weld defects and improving the overall efficiency of the welding process.

Theory
The ENiFe-CI Ni55 electrode operates on the principle of arc welding, where electrical energy is used to create an arc between the electrode and the workpiece. The flux coating helps maintain the stability of the arc and protects the weld pool from contamination during the welding process. The nickel-iron alloy in the electrode fuses with the base metal, creating a durable bond with excellent resistance to wear, stress, and corrosion.

The electrode is ideal for repairing cast iron parts because the nickel content helps to achieve strong, crack-resistant welds, particularly under high-stress conditions. Additionally, the low hydrogen content in the flux coating ensures that the welds are less prone to cracking, a common problem when welding cast iron.

Application/Usage

1. Cast Iron Repair:
   ENiFe-CI Ni55 electrodes are perfect for welding gray iron, ductile iron, and other cast iron materials. They are commonly used for repairing cracks in cast iron engine blocks, cylinder heads, gears, and machinery parts.

2. Industrial Equipment:
   These electrodes are widely used in the maintenance and repair of industrial equipment where cast iron components experience wear and tear. This includes parts like pumps, valves, and compressors used in heavy-duty applications.

3. Automotive and Engine Applications:
   Suitable for automotive repairs, including cast iron engine blocks and cylinder heads. The high nickel content ensures excellent welds that can withstand high mechanical stresses and high temperatures.

4. Marine and Offshore Use:
   ENiFe-CI Ni55 electrodes are also ideal for marine and offshore applications, where components are exposed to harsh conditions like saltwater corrosion and extreme mechanical stress.

Specification Table

Advantages / Selling Points

• Corrosion Resistance: The high nickel content ensures excellent resistance to corrosion, particularly in marine and industrial environments.

• Wear Resistance: Suitable for high-stress applications, providing long-lasting, durable repairs for components exposed to wear and mechanical stress.

• Strong and Reliable Welds: The low hydrogen coating minimizes cracking and ensures high-quality welds.

• Easy to Use: Smooth arc with minimal spatter, making the welding process easier and faster.

• Versatility: Suitable for welding various types of cast iron, including gray iron and ductile iron, in addition to steel.

Service

• Custom Sizes: We offer customized electrode sizes and lengths to meet your specific welding needs.

• Quality Assurance: Our electrodes are manufactured to the highest standards, with strict quality control checks to ensure reliability and performance.

• Technical Support: Our experienced team is available to provide expert technical advice and support to optimize your welding results.

• Packaging and Delivery: Electrodes are carefully packaged in sealed boxes to prevent moisture and contamination during storage and transport. We provide timely and reliable delivery options.

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