| Customization: | Available |
|---|---|
| Type: | Rolling Wire |
| Material: | Nickel / Nickel Alloy |
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ERNiCrCo-4 Product Description
Material Type: Nickel-Chromium-Cobalt-Molybdenum Superalloy
AWS Specification: AWS A5.14
Key Characteristics
1. Chemical Composition (Typical):
Nickel (Ni): Base element (≥50%)
Chromium (Cr): 20-23% (enhances oxidation resistance)
Cobalt (Co): 10-15% (improves high-temperature stability)
Molybdenum (Mo): 8-10% (resists localized corrosion)
Iron (Fe): ≤5%
Resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in acidic, alkaline, and chloride-rich environments (e.g., marine, chemical processing).
Mechanical Strength:
High tensile strength (≥750 MPa) and superior creep resistance even under prolonged high-temperature stress.
Weldability:
Compatible with GTAW (TIG), GMAW (MIG), and SMAW processes.
Minimal post-weld cracking due to low carbon content, ensuring robust and reliable joints.
Product Forms & Specifications
Available Forms:
Welding consumables: Wire (0.8-4.0 mm diameter), electrodes.
Mill products: Round bars, sheets, plates, coils.
Standards: ASTM B574, AMS 5826 (if applicable).
Packaging: Sealed moisture-proof packaging for welding wires; standard crating for bulk materials, ensuring optimal protection.
Applications
Aerospace: Ideal for combustion chambers, turbine blades, and exhaust systems, ensuring supreme durability.
Energy: Perfect for *** core components and heat exchangers, providing unmatched reliability.
Oil & Gas: Suited for downhole tools, valves, and piping in sour gas environments, guaranteeing dependable performance.
Chemical Processing: Essential for reactors, scrubbers, and piping when dealing with sulfuric acid, hydrochloric acid, and seawater.
Processing & Fabrication
Machining: Use carbide tools with low cutting speeds and ample coolant to achieve precision results.
Heat Treatment: Employ solution annealing at 1120-1175°C followed by rapid quenching to attain optimal properties.
Welding Notes:
Preheat unnecessary for thin sections, simplifying the welding process.
Post-weld heat treatment (PWHT) optional for critical applications, offering flexibility in processes.
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Notes
1. Cobalt (Co) Role: Cobalt enhances high-temperature strength and reduces thermal expansion, making ERNiCrCo-4 suitable for ultra-high-temperature environments.
2. Verification Required: Confirm exact composition and certification (e.g., EN, UNS, or proprietary grades) with suppliers to ensure authenticity and compliance.
3. Alternatives: If unavailable, ERNiCrMo-4 (AWS A5.14 ERNiCrMo-4) or Inconel 617 (Ni-Cr-Co-Mo) may serve as substitutes, maintaining performance standards.
| AWS A5.4 | ERNi-1 | ERNiCu-7 | ERNiCr-3 | ERNiCrFe-5 | ERNiCrMo-3 | ERNiCrMo-4 | ERNiCrMo-7 |
| TS(N/mm2) | 460 | 541 | 671 | 560 | 790 | 729 | 780 |
| EL(%) | 30 | 39 | 39 | 30 | 43 | 33 | 35 |
| C | 0.02 | 0.02 | 0.03 | 0.03 | 0.0037 | 0.002 | 0.05 |
| Mn | 0.3 | 1.7 | 3.05 | 1 | 0.03 | 0.12 | 0.6 |
| Si | 0.16 | 0.44 | 0.37 | 0.04 | 0.029 | 0.07 | 0.02 |
| P | 0.0012 | 0.007 | / | 0.004 | 0.003 | 0.003 | 0.003 |
| Ti | 2.3 | / | 0.01 | / | 0.088 | / | / |
| S | 0.005 | 0.008 | / | 0.002 | 0.001 | 0.0015 | |
| Cr | / | / | 19.86 | 15.7 | 21.95 | 15.9 | 16.7 |
| Ni | 96.5 | 65.68 | 72.8 | 75.06 | 64.65 | REM | REM |
| Cu | / | REM | 0.06 | 0.03 | 0.009 | 0.008 | / |
| Mo | / | / | / | 0.03 | 9.04 | 15.9 | 15.8 |
| Nb | / | / | 2.4 | 2.3 | 3.61 | / | / |
| V | / | / | / | / | / | 0.01 | / |
| Fe | / | 0.7 | 0.23 | 7.9 | 0.19 | 4.12 | 2.2 |
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