ERNiCr-3
Discover the unparalleled welding excellence with our Ni base alloy solid welding wire, ERNiCr-3. Designed to deliver outstanding performance, it showcases remarkable resistance to ductility dip cracking and fortifies the tensile strength of the weld metal, surpassing that of the base material. A masterpiece in weldability, this wire guarantees precision and reliability.
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 robust base metal, championing corrosion resistance.
Cr 18.0-22.0 - Elevates oxidation resistance to new heights.
Nb (+Ta) 2.0-3.0 - The guardian against intergranular corrosion through effective carbide stabilization.
Mn 2.5-3.5 - Enhances toughness and expertly mitigates hot cracking.
Fe ≤3.0 - Keeps impurities at bay with precision.
C ≤0.10 - Curbs carbide precipitation for optimal performance.
S/P ≤0.015/≤0.030 - Diminishes brittleness, ensuring durability.
2. Key Properties
Mechanical Performance:
Tensile Strength: ≥552 MPa (80,000 psi) - Exceptional strength for demanding applications.
Elongation: ≥30% (4d) - Offers flexibility and resilience.
High-Temperature Capabilities:
Operating Range: -196°C to +550°C (pressure vessels) - Versatility that defies temperature limits; oxidation resistance up to 1200°C (sulfur-free environments) - Outstanding protection under extreme conditions.
Creep Rupture Strength: Demonstrates unrivaled endurance under sustained thermal stress.
Corrosion Resistance:
Offers formidable resistance to oxidation, stress corrosion cracking, and pitting, even in demanding acidic and urea environments.
3. Welding Applications
Compatible Alloys:
Nickel Alloys: INCONEL 600/601/690, INCOLOY 800/800HT/330 - Seamlessly compatible for superior joint strength.
Dissimilar Metal Joints
Nickel alloys ↔ Carbon steel/stainless steel
INCOLOY 330 ↔ MONEL alloys.
Surface Cladding:
Ideal for corrosion-resistant overlays on carbon steel components, ensuring extended life and performance.
Process Compatibility:
Compatible with TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW), offering versatility for diverse welding needs.
SAW Flux Pairing: INCOFLUX 4 (with NI-ROD 99 wire); ≤3 layers with INCOFLUX, optimizing efficiency and results.
4. Industry Use Cases
Aerospace: Perfect for turbine blades and combustion chambers, offering remarkable high-temperature oxidation resistance.
Nuclear: Robust choice for reactor vessels and fuel piping, providing impressive creep strength in radiative environments.
Chemical Processing: A trusted ally for reactors and heat exchangers, ensuring superior acid corrosion resistance.
bfa1b356
| 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 |
Audited Supplier 
){kind=link}