| 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%
Experience superior resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in environments rich in acids, alkalis, and chlorides, making it ideal for maritime and chemical processing applications.
Mechanical Strength:
Delivers exceptional tensile strength (≥750 MPa) and outstanding creep resistance, even under prolonged exposure to high-temperature stress conditions.
Weldability:
Seamlessly integrates with GTAW (TIG), GMAW (MIG), and SMAW processes, ensuring versatility across welding applications.
Minimal risk of post-weld cracking thanks to its low carbon content, enhancing reliability.
Product Forms & Specifications
Available Forms:
Flexibility in product forms: Wire (0.8-4.0 mm diameter), electrodes, catering to diverse welding needs.
Mill products include round bars, sheets, plates, and coils, offering comprehensive material solutions.
Standards: Complies with ASTM B574, AMS 5826 (where applicable), ensuring quality and reliability.
Packaging: Features sealed moisture-proof packaging for welding wires and standard crating for bulk materials, maintaining product integrity.
Applications
Aerospace: Perfect for combustion chambers, turbine blades, and exhaust systems, providing high-performance solutions.
Energy Sector: Optimal for *** core components and heat exchangers, ensuring durability and reliability.
Oil & Gas: Ideal for downhole tools, valves, and piping in challenging sour gas environments.
Chemical Processing: Exceptional for reactors, scrubbers, and piping designed for sulfuric acid, hydrochloric acid, and seawater applications.
Processing & Fabrication
Machining: Employ carbide tools with low cutting speeds complemented by ample coolant for precision and efficiency.
Heat Treatment: Achieve optimal properties through solution annealing at 1120-1175°C followed by rapid quenching.
Welding Notes:
Preheating is unnecessary for thin sections, streamlining the welding process.
Post-weld heat treatment (PWHT) is optional for critical applications, allowing flexibility in application-based decisions.
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Notes
1. Cobalt (Co) Role: Cobalt significantly boosts high-temperature strength and minimizes thermal expansion, rendering ERNiCrCo-4 perfect for ultra-high-temperature venues.
2. Verification Required: Confirm precise composition and certification (e.g., EN, UNS, or proprietary grades) with suppliers to ensure compliance.
3. Alternatives: In case of unavailability, ERNiCrMo-4 (AWS A5.14 ERNiCrMo-4) or Inconel 617 (Ni-Cr-Co-Mo) may serve as suitable alternatives.
| 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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