ERNiCr-3
Discover the remarkable ERNiCr-3 MIG Welding Wire—a Ni base alloy solid welding wire that excels in performance! Known for its outstanding resistance to ductility dip cracking, this welding wire ensures impeccable weld integrity. It enhances the tensile strength of weld metal, matching or exceeding that of the base material. Its exceptional weldability guarantees superior results every time.
1.Basic Specifications & Composition
Standards Compliance:
AWS A5.14: ERNiCr-3
DIN: SG-NiCr20Nb (Werkstoff Nr. 2.4806)
ISO/BS: SNi6082 / NiCr20Mn3Nb.
Chemical Composition:
Element Content (%) Role
Ni (+Co) ≥67.0 (72.9 typical) This base metal provides robust corrosion resistance, ensuring longevity and reliability in challenging environments.
Cr 18.0-22.0 This element enhances the wire's oxidation resistance, making it ideal for high-temperature applications.
Nb (+Ta) 2.0-3.0 Prevents detrimental intergranular corrosion by stabilizing carbides, ensuring durability.
Mn 2.5-3.5 Improves the overall toughness of the weld and mitigates risks of hot cracking.
Fe ≤3.0 Carefully controlled to prevent impurities from compromising the weld quality.
C ≤0.10 Minimization of carbide precipitation for enhanced performance and integrity.
S/P ≤0.015/≤0.030 These elements are kept to a minimum to reduce brittleness and enhance ductility.
2. Key Properties
Mechanical Performance:
Tensile Strength: Ensures a robust tensile strength of ≥552 MPa (80,000 psi) for dependable welds.
Elongation: Offers an impressive elongation of ≥30% (4d) for flexible and reliable welding performance.
High-Temperature Capabilities:
Operating Range: Versatile performance in temperatures from -196°C to +550°C for pressure vessels. Capable of resisting oxidation up to 1200°C in sulfur-free environments, ensuring longevity at high temperatures.
Creep Rupture Strength: Exhibits excellent performance under sustained thermal stress, ensuring reliability in demanding conditions.
Corrosion Resistance:
Boasts remarkable resistance to oxidation, stress corrosion cracking, and pitting in harsh environments like sulfuric and phosphoric acids, as well as urea environments.
3. Welding Applications
Compatible Alloys:
Seamlessly compatible with Nickel Alloys such as INCONEL 600/601/690 and INCOLOY 800/800HT/330, ensuring versatile application possibilities.
Dissimilar Metal Joints
Nickel alloys ↔ Capable of joining carbon steel and stainless steel, offering flexibility in material selection.
INCOLOY 330 ↔ MONEL alloys, enabling diverse and robust welding options.
Surface Cladding:
Ideal for creating corrosion-resistant overlays on carbon steel components, enhancing longevity and performance.
Process Compatibility:
Compatible with TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW), offering versatile and comprehensive welding solutions.
SAW Flux Pairing: Perfectly pairs with INCOFLUX 4 (with NI-ROD 99 wire) for seamless welding. Capable of up to ≤3 layers with INCOFLUX, ensuring comprehensive coverage and durability.
4. Industry Use Cases
Aerospace: Perfect for turbine blades and combustion chambers, providing high-temperature oxidation resistance for critical components.
Nuclear: Ideal for reactor vessels and fuel piping, offering exceptional creep strength, even in radiation-heavy environments.
Chemical Processing: Our ERNiCr-3 MIG Welding Wire is perfectly suited for applications such as reactors and heat exchangers, where its outstanding resistance to acid corrosion ensures long-lasting reliability and performance.
Energy: Trust our ERNiCr-3 MIG Welding Wire for critical applications like boiler components and exhaust systems, where its exceptional durability during thermal cycling offers unmatched resilience and longevity.
| AWS A5.4 |
ERNi-1 |
ERNiCu-7 |
ERNiCr-3 |
ERNiCrFe-5 |
ERNiCrMo-3 |
ERNiCrMo-4 |
ERNiFeCr-1 |
Tensile Strength
(N/mm2) |
514 |
541 |
671 |
651 |
819 |
729 |
602 |
Elongation
(%) |
44 |
39 |
41 |
45 |
39 |
45 |
33 |
| C |
0.02 |
0.02 |
0.03 |
0.06 |
0.037 |
0.012 |
0.02 |
| Mn |
0.24 |
3.21 |
3.05 |
0.51 |
0.06 |
0.5 |
0.5 |
| Si |
0.34 |
0.68 |
0.12 |
0.14 |
0.11 |
0.01 |
0.11 |
| P |
0.34 |
1.53 |
2.4 |
1.99 |
3.37 |
0.23 |
0.81 |
| Ti |
0.34 |
1.53 |
/ |
/ |
/ |
/ |
0.81 |
| S |
0.14 |
0.47 |
1.41 |
6.82 |
3.9 |
5.4 |
28.24 |
| Cr |
/ |
/ |
19.86 |
14.79 |
21.55 |
15.9 |
22.61 |
| Ni |
95.5 |
65.68 |
72.8 |
75.06 |
61.65 |
REM |
42.91 |
| Cu |
0.01 |
REM |
0.03 |
0.03 |
/ |
/ |
/ |
| Mo |
0.01 |
REM |
0.03 |
0.03 |
8.49 |
16 |
2.67 |
| Nb |
/ |
|
2.4 |
1.99 |
3.37 |
/ |
|
| V |
/ |
|
|
|
|
0.23 |
|
| Fe |
0.14 |
0.47 |
1.41 |
6.82 |
3.9 |
5.4 |
28.24 |
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