DZX Alloy 182 AWS A5.11 Electrode ENiCrFe-3 350mm Heat Exchanger

Product Information
The AWS A5.11 Electrode ENiCrFe-3 is a high-performance welding electrode made from a combination of nickel, chromium, and iron alloys. This electrode is designed for use in the Shielded Metal Arc Welding (SMAW) process and is commonly used for welding Heat Exchangers and other equipment in industries where high strength, corrosion resistance, and excellent weldability are required.

Also known as:

• Nickel-Chromium-Iron Electrode

• AWS A5.11 ENiCrFe-3

• UNS W86112 Electrode

• Heat Exchanger Electrode

  

Material Composition

• Nickel (Ni) ≥ 55%

• Chromium (Cr) 19–23%

• Iron (Fe) Balance

• Manganese (Mn) ≤ 2%

• Silicon (Si) ≤ 0.50%

• Carbon (C) ≤ 0.10%

• Phosphorus (P) ≤ 0.03%

• Sulfur (S) ≤ 0.03%

• Cobalt (Co) ≤ 1.0%

• Copper (Cu) ≤ 0.50%

• Tungsten (W) ≤ 0.10%

• Trace elements: Molybdenum (Mo), Vanadium (V), and others.

Appearance / Color
The ENiCrFe-3 electrode features a light gray to tan flux coating. The core of the electrode consists of high-quality steel with a solid, smooth finish, providing optimal welding characteristics.

Core Wire Diameter

• Diameter: 3.2 mm, 4.0 mm, and 5.0 mm (Available upon request: custom diameters).

Flux Coating

• The flux coating is formulated to provide a stable arc, reduce spatter, and prevent cracking in high-temperature applications. It ensures excellent weld quality, even in harsh conditions.

Packaging

• Packaging: Typically packed in 5 kg sealed boxes, ensuring safe and convenient storage and handling.

Characteristics

• Corrosion Resistance: ENiCrFe-3 is highly resistant to general corrosion, localized corrosion (pitting, crevice corrosion), and oxidation at elevated temperatures. This makes it ideal for welding components that will be exposed to harsh environments.

• High-Temperature Performance: This electrode is specifically designed for high-temperature applications, making it suitable for welding heat exchangers, steam pipes, and other parts exposed to high heat cycles.

• Weldability: The electrode is easy to use and provides smooth, stable arcs with low spatter. It produces clean and consistent welds, even in the most demanding welding positions.

• Strength: The weld metal exhibits good tensile strength, making it suitable for use in pressure vessels and other critical components.

Technology
The ENiCrFe-3 electrode is produced through advanced manufacturing processes, such as vacuum induction melting (VIM) and vacuum arc remelting (VAR), ensuring high purity and consistency in the alloy. These processes minimize impurities, which contributes to the exceptional performance and long service life of the electrode. The formulation of the flux coating ensures a low-hydrogen output, which minimizes the risk of cracking and ensures strong, durable welds.

Theory
The ENiCrFe-3 electrode is composed of a high-nickel alloy with chromium and iron to provide outstanding resistance to corrosion, oxidation, and heat. The addition of chromium enhances oxidation resistance, while the iron content ensures strong, stable welds. This combination of elements creates a balanced electrode that performs excellently in high-temperature environments, making it ideal for applications such as welding heat exchangers, pressure vessels, and piping in power plants, chemical plants, and more.

Application/Usage

1. Heat Exchangers
   The primary application of ENiCrFe-3 electrodes is in the welding of heat exchangers. These electrodes provide the necessary strength and resistance to corrosion and oxidation, which are critical for ensuring the longevity of heat exchangers in industries such as power generation, petrochemicals, and HVAC systems.

2. Pressure Vessels
   ENiCrFe-3 is also ideal for welding pressure vessels used in high-temperature and high-pressure environments, as it provides excellent strength and corrosion resistance.

3. Piping and Steam Systems
   These electrodes are commonly used to weld piping systems in steam circuits, where the material is exposed to high temperatures and pressure over extended periods.

Specification Table

Item	Specification	Standard	Surface Condition
Material	ENiCrFe-3	AWS A5.11 / ASME SFA A5.11	Bright, Polished
Diameter	3.2 mm, 4.0 mm, 5.0 mm		Smooth, Clean
Tensile Strength	≥800 MPa		Polished / Turned
Yield Strength	≥550 MPa		Smooth Finish
Elongation	≥20%		Custom Finish Available
Temperature Resistance	Up to 1000°C (1832°F)
Packaging	5.0 kg sealed boxes

Advantages

• Superior Corrosion Resistance: ENiCrFe-3 electrodes are highly resistant to both general corrosion and localized corrosion (such as pitting and crevice corrosion), ensuring a long service life in harsh environments.

• High-Temperature Performance: This electrode performs exceptionally well in high-temperature applications, such as welding heat exchangers and piping systems.

• Easy Weldability: The electrode is easy to use and delivers smooth, stable arcs with minimal spatter, ensuring high-quality welds.

• Versatility: Suitable for SMAW, TIG, and MIG welding methods, making it versatile for various welding techniques and applications.

• Available in Multiple Sizes: Common diameters available (3.2 mm, 4.0 mm, 5.0 mm) with the option for custom sizes upon request.

Service

• Customization Available: We offer custom sizes and formulations to meet specific customer needs.

• Technical Support: Our team of welding experts is available to provide guidance on electrode selection, welding parameters, and troubleshooting.

• Quick Delivery: We ensure timely delivery to meet your project deadlines.

• Quality Assurance: Our products undergo strict quality control processes to ensure consistency and reliability.

• After-Sales Service: We offer continuous support after the purchase to assist with any issues or questions related to the product.

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