ERNiCr-3
Introducing our Ni base alloy solid welding wire, a pinnacle of innovation crafted for superior welding outcomes. This remarkable wire boasts outstanding resistance to ductility dip cracking in weld metal, ensuring seamless and robust joins. It enhances the tensile strength of weld metal, meeting or exceeding that of the base material, all while offering exceptional weldability for smooth and reliable performance.
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 foundation of strength and corrosion resistance in our alloy.
Cr 18.0-22.0 Acts as a shield, enhancing oxidation resistance.
Nb (+Ta) 2.0-3.0 Essential for preventing intergranular corrosion through effective carbide stabilization.
Mn 2.5-3.5 Adds toughness and minimizes hot cracking for durability.
Fe ≤3.0 Carefully controlled to minimize impurities.
C ≤0.10 Strategically low to prevent excessive carbide precipitation.
S/P ≤0.015/≤0.030 Precisely limited to reduce brittleness.
2. Key Properties
Mechanical Performance:
Tensile Strength: ≥552 MPa (80,000 psi) A testament to its unparalleled strength.
Elongation: ≥30% (4d) Demonstrates exceptional flexibility and adaptability.
High-Temperature Capabilities:
Operating Range: -196°C to +550°C Specifically designed for pressure vessels, ensuring performance across a vast temperature range. Oxidation resistance up to 1200°C Perfect for sulfur-free environments.
Creep Rupture Strength: Outstanding performance under continuous thermal stress.
Corrosion Resistance:
Defends against oxidation and stress corrosion cracking, thriving in acidic environments like sulfuric, phosphoric, and urea.
3. Welding Applications
Compatible Alloys:
Nickel Alloys: Seamlessly pairs with INCONEL 600/601/690, and INCOLOY 800/800HT/330 for optimal performance.
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, ensuring longevity and protection.
Process Compatibility:
Versatile across welding processes like TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW).
SAW Flux Pairing: Perfectly pairs with INCOFLUX 4 when used alongside NI-ROD 99 wire. ≤3 layers with INCOFLUX, guaranteeing optimal results.
4. Industry Use Cases
Aerospace: An essential choice for turbine blades and combustion chambers, offering high-temperature oxidation resistance.
Nuclear: Ideal for reactor vessels and fuel piping, providing creep strength in radiation-prone environments.
Chemical Processing: Perfect for reactors and heat exchangers, offering unbeatable acid corrosion resistance.
251924e9
| 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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