ERNiCr-3
Introducing the Ni base alloy solid welding wire designed to deliver exceptional performance for welding applications. This remarkable wire boasts outstanding resistance to ductility dip cracking in weld metals, ensuring seamless and robust joins. Not only does it elevate the tensile strength of the weld metal to match or exceed that of the base material, but it also offers superior weldability for effortless and reliable application.
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) The backbone of the material, providing outstanding corrosion resistance.
Cr 18.0-22.0 Boosts oxidation resistance, ensuring longevity under intense conditions.
Nb (+Ta) 2.0-3.0 Crucial for preventing intergranular corrosion, enhancing stability.
Mn 2.5-3.5 Key for improving toughness and minimizing risks of hot cracking.
Fe ≤3.0 Strict impurity control for optimal performance.
C ≤0.10 Essential for minimizing unwanted carbide precipitation.
S/P ≤0.015/≤0.030 Ensures reduced brittleness for a durable finish.
2. Key Properties
Mechanical Performance:
Tensile Strength: ≥552 MPa (80,000 psi) - showcasing its ability to withstand rigorous strain.
Elongation: ≥30% (4d) - offering flexibility and resilience in demanding conditions.
High-Temperature Capabilities:
Operating Range: -196°C to +550°C for pressure vessels, demonstrating extreme versatility; Offers oxidation resistance up to 1200°C in sulfur-free environments, ensuring high durability.
Creep Rupture Strength: Provides outstanding performance under sustained thermal stress.
Corrosion Resistance:
Remarkable resistance to oxidation, stress corrosion cracking, and pitting in harsh environments, such as sulfuric, phosphoric acids, and urea solutions.
3. Welding Applications
Compatible Alloys:
Perfectly pairs with Nickel Alloys like INCONEL 600/601/690, INCOLOY 800/800HT/330.
Dissimilar Metal Joints
Nickel alloys ↔ Carbon steel/stainless steel
INCOLOY 330 ↔ MONEL alloys.
Surface Cladding:
Ideal for creating corrosion-resistant overlays on carbon steel components, enhancing longevity.
Process Compatibility:
Versatile compatibility with TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW).
SAW Flux Pairing: Efficiently paired with INCOFLUX 4 when using NI-ROD 99 wire; Allows for up to 3 layers with INCOFLUX.
4. Industry Use Cases
Aerospace: Perfect for turbine blades and combustion chambers, providing high-temperature oxidation resistance.
Nuclear: Suitable for reactor vessels and fuel piping, offering excellent creep strength in radiation environments.
Chemical Processing: Ideal for reactors and heat exchangers, providing outstanding resistance to acid corrosion.
460bae31
| 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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