ERNiCr-3
Our ERNiCr-3 is a premium Ni-based alloy solid welding wire designed for exceptional performance. It boasts unparalleled resistance to ductility dip cracking in weld metal, effortlessly elevating the tensile strength of the weld to match or surpass that of the base material. Its remarkable weldability makes it a top choice for demanding applications.
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 ensures superior corrosion resistance, setting the foundation for robust and long-lasting welds.
Cr 18.0-22.0 This element is key for enhancing oxidation resistance, protecting your welds in challenging environments.
Nb (+Ta) 2.0-3.0 Crucial for preventing intergranular corrosion, it stabilizes carbides for unmatched durability.
Mn 2.5-3.5 Boosts toughness and significantly reduces the risk of hot cracking, ensuring reliable welds.
Fe ≤3.0 Tight impurity control to maintain the integrity of the weld.
C ≤0.10 Minimizes the risk of carbide precipitation, safeguarding the weld's structure.
S/P ≤0.015/≤0.030 This reduces brittleness, providing a resilient and flexible weld.
2. Key Properties
Mechanical Performance:
Tensile Strength: ≥552 MPa (80,000 psi) This robust strength ensures the weld withstands high-stress applications.
Elongation: ≥30% (4d) . Offers significant flexibility, accommodating structural shifts without cracking.
High-Temperature Capabilities:
Operating Range: -196°C to +550°C (pressure vessels); Capable of maintaining performance in extreme temperatures. Oxidation resistance up to 1200°C (sulfur-free environments) Ensures longevity even in high-heat, sulfur-free settings.
Creep Rupture Strength: Exceptional strength under sustained thermal stress, ideal for long-term, high-temperature use.
Corrosion Resistance:
Outstanding resistance to oxidation, stress corrosion cracking, and pitting in harsh acids like sulfuric and phosphoric, as well as urea environments.
3. Welding Applications
Compatible Alloys:
Nickel Alloys: Perfect for seamless integration with INCONEL 600/601/690 and INCOLOY 800/800HT/330.
Dissimilar Metal Joints
Nickel alloys ↔ Carbon steel/stainless steel
INCOLOY 330 ↔ MONEL alloys.
Surface Cladding:
Ideal for corrosion-resistant overlays, enhancing the durability of carbon steel components.
Process Compatibility:
Versatile in TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW), offering diverse application possibilities.
SAW Flux Pairing: Use with INCOFLUX 4 alongside NI-ROD 99 wire; Up to 3 layers with INCOFLUX for optimal results.
4. Industry Use Cases
Aerospace: Perfect for turbine blades and combustion chambers, offering high-temperature oxidation resistance to keep aerospace components at peak performance.
Nuclear: Designed for reactor vessels and fuel piping, providing the necessary creep strength in challenging radiation environments.
Chemical Processing: Protects reactors and heat exchangers with outstanding acid corrosion resistance, crucial for maintaining efficiency and safety.
cbd87c58
| 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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