ERNiCrMo-4 is a specialized nickel-chromium-molybdenum alloy widely used in welding applications. With its exceptional resistance to corrosion and high mechanical strength, this alloy is designed for Gas Metal Arc Welding (GMAW) and Gas Tungsten Arc Welding (GTAW) of Hastelloy C276 and similar base materials. It meets stringent standards across various specifications, ensuring reliability and performance in demanding environments.
Specifications
ERNiCrMo-4 complies with both Chinese and international standards, ensuring its suitability for a global range of applications:
Chinese Specification: GB/T 15620, SNi6276
International Standards: AWS A5.14, ERNiCrMo-4; ASME II, SFA-5.14, ERNiCrMo-4; Werkstoff Nr.2.4886; UNS N10276
Chemical Composition
The alloy's main chemical composition highlights its exceptional properties:
Element | Ni | C | Si | S | P | Mn | Fe | Cr | Mo | Cu | W | V |
% | ≥50 | ≤0.02 | ≤0.08 | ≤0.015 | ≤0.02 | ≤1.0 | 4.0–7.0 | 14.5–16.5 | 15–17 | ≤0.50 | 3.0–4.5 | ≤0.13 |
The alloy contains over 50% nickel, with significant amounts of chromium and molybdenum, which provide enhanced resistance to corrosion in aggressive environments, such as chemical processing plants and marine applications.
Mechanical Properties
ERNiCrMo-4 demonstrates excellent mechanical strength, making it suitable for high-performance applications:
Tensile Strength: 100,000 Psi (690 MPa)
Product Forms
ERNiCrMo-4 is available in various forms to accommodate diverse welding needs:
Precision Layer Wound Spools: Ensures uniformity and ease of use.
Cut Straight Lengths: Available in straight rods for TIG welding, with diameters ranging from 1.2 mm to 3.2 mm.
Spooled Wire: For MIG welding, diameters range from 0.8 mm to 1.2 mm.
Applications
ERNiCrMo-4 is primarily used for welding Hastelloy C276 and other nickel-chromium-molybdenum-based materials. Its corrosion resistance and durability make it ideal for:
Chemical and petrochemical industries
Marine environments
Power generation systems
Pulp and paper processing
Key Benefits
Corrosion Resistance: Excels in harsh chemical and high-temperature environments.
Versatility: Suitable for both GMAW and GTAW welding processes.
High Strength: Meets the demands of high-pressure and high-stress applications.
Conclusion
ERNiCrMo-4 is a versatile and reliable welding alloy for challenging industrial applications. Its compliance with international and Chinese standards, combined with its outstanding chemical and mechanical properties, ensures optimal performance in a wide range of environments.