SMAW
ENiCrFe-2 is a nickel-Chromium-iron flux-coated electrode designed primarily for protection metal arc welding of forged or cast forms of carbon steel, austenitic and ferritic stainless steel, and nickel-chrome Inconel 600 mutual Incoloy 800 with self or 9% nickel steel. Alloy A Welding Electrode is ideal for surfacing nickel-chromium alloy on steel.
Product Detail
- Used for welding of nickel-chromium-iron alloys to themselves as well as for dissimilar welding between various nickel alloys to a steel or stainless steels.
- Overlay cladding where a similar composition is needed.
- Diverse applications ranging from cryogenic temperature up to 1500°F.
| C | Mn | Fe | P | S | Si | Cu | Ni | Cr | Nb+Ta | Mo | Other |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.1 | 1.0-3.5 | ≤12 | ≤0.03 | ≤0.02 | ≤0.75 | ≤0.5 | ≤62 | 13.0-17.0 | 0.5-3.0 | 0.5-2.5 | ≤0.5 |
| Condition | Tensile strength Mpa (Ksi) | Yield strength Mpa (Ksi) | Elongation % |
|---|---|---|---|
| AWS Reaulrement | 55（80）min | Not specified | 30 min |
| Typical Results as weled | 610（88） | 550（73） | 36 |
| Process | Diameter in | Voltage (V) | Flat | Vertical and Overhead |
|---|---|---|---|---|
| SMAW | 3/32 (2.4mm) | 24 – 28 | 70 – 85 | 65 – 75 |
| SMAW | 1/8 (3.2mm) | 26 – 30 | 85 – 110 | 80 – 90 |
| SMAW | 5/32 (4.0mm) | 28 – 32 | 110 – 140 | 100 – 120 |
| SMAW | 3/16 (4.8mm) | 28 – 32 | 120 – 160 | 110 – 130 |
| Diameter in(mm) | Length in(mm) | Packaging |
|---|---|---|
| 3/32 (2.4) | 12 (229) | 10lbs (4.54kgs) |
| 1/8 (3.2) | 14 (356) | 10lbs (4.54kgs) |
| 5/32 (4.0) | 14 (356) | 10lbs (4.54kgs) |
| 3/16 (4.8) | 14 (356) | 10lbs (4.54kgs) |
The designation ENiCrFe-2 refers to a specific type of welding electrode used in arc welding, commonly classified under the American Welding Society (AWS) system. This classification system helps identify the composition and intended applications of welding consumables, such as electrodes, wires, or rods.
Breaking down the designation ENiCrFe-2:
- “E”: Denotes that it is an electrode, used for manual or automatic arc welding.
- “Ni”: Indicates that the primary base metal of the electrode is nickel.
- “Cr”: Represents chromium, an alloying element in the electrode.
- “Fe”: Stands for iron, which is another constituent of the electrode.
- “-2”: The numerical designation typically signifies a specific variation or composition within the classification.
Characteristics and Composition:
ENiCrFe-2 electrodes generally contain a blend of nickel, chromium, iron, and possibly other alloying elements. These electrodes are primarily designed for welding nickel-based alloys, such as Inconel, Monel, and Hastelloy, which are known for their high-temperature strength and corrosion resistance properties.
Applications:
These electrodes are commonly employed in various industries and applications:
- Aerospace and Aviation: Used in welding components for aircraft engines, gas turbine parts, and other high-temperature applications.
- Petrochemical Industry: Suitable for welding parts in chemical processing plants, refineries, and pipelines that require resistance to corrosion and high temperatures.
- Power Generation: Used for welding components in power plants, particularly in high-temperature environments.
- Marine Engineering: Applied to welding marine equipment and structures exposed to harsh marine environments.
Welding Characteristics:
- Corrosion Resistance: It offers excellent resistance to corrosion, making it suitable for use in aggressive environments.
- High-Temperature Strength: Maintains mechanical properties at elevated temperatures, crucial for applications subjected to high heat conditions.
- Versatility: Well-suited for welding dissimilar metals and joining nickel-based alloys to themselves or to other materials.
Welding Considerations:
When utilizing ENiCrFe-2 electrodes, adherence to proper welding techniques and parameters is essential to achieving sound welds with the desired mechanical properties. Following manufacturer recommendations regarding current, polarity, shielding gas, and other parameters is crucial to ensuring the quality and integrity of the welds.
These electrodes are chosen for their ability to create strong, corrosion-resistant welds in applications where nickel-based alloys are joined or repaired. However, the exact composition and specific applications may vary based on the manufacturer’s specifications and intended use. Therefore, it’s advisable to consult manufacturer guidelines and welding procedures before utilizing ENiCrFe-2 electrodes for specific welding tasks.
