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% (enhances oxidation resistance)
Cobalt (Co): 10-15% (improves high-temperature stability)
Molybdenum (Mo): 8-10% (resists localized corrosion)
Iron (Fe): ≤5%
This material is engineered to resist pitting, crevice corrosion, and stress corrosion cracking (SCC) even in the harshest environments like acidic, alkaline, and chloride-rich conditions, perfect for marine and chemical processing industries.
Mechanical Strength:
Featuring high tensile strength (≥750 MPa), this material excels in creep resistance, efficiently handling prolonged high-temperature stress.
Weldability:
Seamlessly compatible with multiple welding processes including GTAW (TIG), GMAW (MIG), and SMAW, ensuring versatility in application.
The low carbon content significantly reduces post-weld cracking, enhancing the overall integrity of the weld.
Product Forms & Specifications
Available Forms:
Versatile welding consumables such as wire ranging from 0.8-4.0 mm diameter and electrodes.
Extensive mill products including round bars, sheets, plates, and coils cater to diverse industrial needs.
Standards: ASTM B574, AMS 5826 (if applicable).
Thoughtful packaging with sealed moisture-proof options for welding wires and standard crating for bulk materials ensures safety and integrity during transportation.
Applications
Aerospace: Ideal for high-performance components like combustion chambers, turbine blades, and exhaust systems.
Energy: Ensures reliable performance in *** core components and heat exchangers.
Oil & Gas: Perfectly suited for downhole tools, valves, and piping in challenging sour gas environments.
Chemical Processing: Durable and resistant for reactors, scrubbers, and piping handling sulfuric acid, hydrochloric acid, and seawater.
Processing & Fabrication
Machining: Employ carbide tools, maintaining low cutting speeds with ample coolant to ensure precision and longevity.
Heat Treatment: Achieve optimal results with solution annealing at 1120-1175°C followed by rapid quenching.
Welding Notes:
Thin sections do not require preheating, streamlining the welding process.
Post-weld heat treatment (PWHT) is optional for critical applications, offering flexibility in fabrication.
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Notes
1. Cobalt (Co) Role: Cobalt is integral in enhancing high-temperature strength and minimizing thermal expansion, making ERNiCrCo-4 a top choice for ultra-high-temperature applications.
2. Verification Required: Always confirm the exact composition and certification, including EN, UNS, or proprietary grades, with your suppliers to ensure compliance and performance.
3. Alternatives: In the event of unavailability, consider ERNiCrMo-4 (AWS A5.14 ERNiCrMo-4) or Inconel 617 (Ni-Cr-Co-Mo) as viable substitutes, ensuring continuity in your operations.
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 |