| 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%
This superalloy is engineered to resist pitting, crevice corrosion, and stress corrosion cracking (SCC), providing unparalleled protection in harsh acidic, alkaline, and chloride-rich environments such as marine and chemical processing sectors.
Mechanical Strength:
Boasting high tensile strength (≥750 MPa) and excellent creep resistance, it performs reliably under prolonged high-temperature stress conditions.
Weldability:
Seamlessly compatible with GTAW (TIG), GMAW (MIG), and SMAW processes.
Ensures minimal post-weld cracking thanks to its low carbon content.
Product Forms & Specifications
Available Forms:
Welding consumables include wire (0.8-4.0 mm diameter) and electrodes for versatile applications.
Mill products come in diverse forms such as round bars, sheets, plates, and coils.
Meets rigorous standards like ASTM B574 and AMS 5826 (where applicable).
Thoughtfully packaged with sealed moisture-proof packaging for welding wires and standard crating for bulk materials to ensure integrity.
Applications
Aerospace: Perfect for combustion chambers, turbine blades, and exhaust systems.
Energy: Ideal for *** core components and heat exchangers.
Oil & Gas: Essential for downhole tools, valves, and piping in challenging sour gas environments.
Chemical Processing: Robust for use in reactors, scrubbers, and piping systems tasked with handling sulfuric acid, hydrochloric acid, and seawater.
Processing & Fabrication
Machining: Employ carbide tools with low cutting speeds and plenty of coolant for optimal results.
Heat Treatment: Solution annealing at 1120-1175°C followed by rapid quenching ensures desired properties.
Welding Notes:
Preheat is not required for thin sections, providing convenience and efficiency.
Post-weld heat treatment (PWHT) is optional, offering flexibility for critical applications.
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Notes
1. Cobalt (Co) Role: Cobalt significantly enhances high-temperature strength and reduces thermal expansion, making ERNiCrCo-4 a superior choice for ultra-high-temperature environments.
2. Verification Required: Confirm exact composition and certification (e.g., EN, UNS, or proprietary grades) with suppliers to ensure precise application.
3. Alternatives: Should this alloy be unavailable, ERNiCrMo-4 (AWS A5.14 ERNiCrMo-4) or Inconel 617 (Ni-Cr-Co-Mo) may serve as effective substitutes.
| 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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