Customization: | Available |
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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% - This robust addition significantly boosts oxidation resistance, ensuring durability.
Cobalt (Co): 10-15% - Enhances stability at high temperatures, vital for demanding conditions.
Molybdenum (Mo): 8-10% - Offers exceptional resistance to localized corrosion, safeguarding integrity.
Iron (Fe): ≤5%
Remarkably resists pitting, crevice corrosion, and stress corrosion cracking (SCC) in challenging environments like acidic, alkaline, and chloride-rich settings, including marine and chemical processing areas.
Mechanical Strength:
Exhibits high tensile strength (≥750 MPa) and incredible creep resistance, even under prolonged high-temperature stress.
Weldability:
Seamlessly compatible with GTAW (TIG), GMAW (MIG), and SMAW processes, offering versatile application possibilities.
Minimal post-weld cracking attributed to its low carbon content, enhancing reliability.
Product Forms & Specifications
Available Forms:
Welding consumables: Wire (0.8-4.0 mm diameter), electrodes.
Mill products: Includes round bars, sheets, plates, and coils for diverse applications.
Standards: Complies with ASTM B574, AMS 5826 when applicable.
Packaging: Features sealed moisture-proof packaging for welding wires and standard crating for bulk materials, ensuring product integrity.
Applications
Aerospace: Perfect for combustion chambers, turbine blades, and exhaust systems, ensuring superior performance.
Energy: Ideal for *** core components and heat exchangers, providing unmatched reliability.
Oil & Gas: Engineered for downhole tools, valves, and piping in sour gas environments.
Chemical Processing: Suitable for reactors, scrubbers, and piping handling aggressive substances like sulfuric acid, hydrochloric acid, and seawater.
Processing & Fabrication
Machining: Utilize carbide tools with low cutting speeds and ample coolant to ensure precision and quality.
Heat Treatment: Solution annealing at 1120-1175°C followed by rapid quenching ensures optimal material properties.
Welding Notes:
Preheat is unnecessary for thin sections, simplifying the process.
Post-weld heat treatment (PWHT) is optional for critical applications, providing flexibility.
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Notes
1. Cobalt (Co) Role: Cobalt significantly enhances high-temperature strength and reduces thermal expansion, making ERNiCrCo-4 a top 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 compliance and quality.
3. Alternatives: In case of unavailability, ERNiCrMo-4 (AWS A5.14 ERNiCrMo-4) or Inconel 617 (Ni-Cr-Co-Mo) may serve as robust substitutes, offering similar exceptional performance.
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 |