ERNiCr-3
Discover the unparalleled capabilities of our Ni base alloy solid welding wire, meticulously engineered to deliver exceptional cracking resistance, particularly against ductility dip cracking in weld metal. This advanced welding wire not only matches but can exceed the tensile strength of the base material, ensuring robust and durable welds, all while offering outstanding weldability for seamless application.
1. Basic Specifications & Composition
Adherence to Prestigious Standards:
AWS A5.14: ERNiCr-3
DIN: SG-NiCr20Nb (Werkstoff Nr. 2.4806)
ISO/BS: SNi6082 / NiCr20Mn3Nb.
Chemical Composition Delivers Excellence:
Element Content (%) Role
Ni (+Co) ≥67.0 (72.9 typical) Serves as the base metal, ensuring superior corrosion resistance.
Cr 18.0-22.0 Provides enhanced oxidation resistance for greater durability.
Nb (+Ta) 2.0-3.0 Stable carbide formation prevents intergranular corrosion.
Mn 2.5-3.5 Increases toughness and mitigates hot cracking risks.
Fe ≤3.0 Controls impurities for higher quality.
C ≤0.10 Limits carbide precipitation, enhancing performance.
S/P ≤0.015/≤0.030 Reduces brittleness for lasting strength.
2. Key Properties
Outstanding Mechanical Performance:
Tensile Strength: ≥552 MPa (80,000 psi) offers remarkable robustness.
Elongation: ≥30% (4d) ensures flexibility and durability.
Remarkable High-Temperature Capabilities:
Operating Range: -196°C to +550°C makes it ideal for pressure vessels; Exhibits oxidation resistance up to 1200°C in sulfur-free environments.
Creep Rupture Strength: Maintains excellent structural integrity under sustained thermal stress.
Exceptional Corrosion Resistance:
Effectively combats oxidation, resists stress corrosion cracking, and prevents pitting in corrosive environments such as acids (e.g., sulfuric, phosphoric) and urea.
3. Welding Applications
Seamless Integration with Compatible Alloys:
Ideal for Nickel Alloys such as INCONEL 600/601/690, INCOLOY 800/800HT/330.
Efficient Dissimilar Metal Joints:
Nickel alloys ↔ Carbon steel/stainless steel
INCOLOY 330 ↔ MONEL alloys.
Surface Cladding Excellence:
Perfect for creating corrosion-resistant overlays on carbon steel components.
Broad Process Compatibility:
Compatible with TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW) processes.
SAW Flux Pairing: Optimal with INCOFLUX 4 (combined with NI-ROD 99 wire); Apply up to ≤3 layers for maximum effectiveness with INCOFLUX.
4. Diverse Industry Use Cases
Aerospace: Ideal for turbine blades and combustion chambers, offering high-temperature oxidation resistance.
Nuclear: Perfect for reactor vessels and fuel piping, providing exceptional creep strength in challenging radiation environments.
Chemical Processing: Our ERNiCr-3 Nickel Welding Rod is the perfect choice for reactors and heat exchangers, offering exceptional resistance to acid corrosion. Trust in our product for unmatched durability in the most demanding chemical environments.
Energy: Designed specifically for boiler components and exhaust systems, our ERNiCr-3 Nickel Welding Rod ensures remarkable durability against thermal cycling. This product stands as a reliable solution for maintaining integrity under high temperature fluctuations.
| 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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