ERNiCr-3 CO2 Welding Rod: Superior Strength and Durability Guaranteed

• Customization: Available
• Type: Rolling Wire
• Material: Nickel / Nickel Alloy
• Model NO.: ERNiCr-3
• Flux Containing: Not Containing Flux
• Slag Characteristic: Acidic
• Extended Length: >20mm
• Transport Package: 1kg/5kg/15kg/Spool(Tube)
• Specification: 0.6/0.8/1.0/1.2/1.6/2.0/2.5/3.2/4.0mm
• Trademark: Jiuzhou
• Origin: China
• HS Code: 7505220000
• Production Capacity: 200000kg/Year

Product Description

ERNiCr-3
Our ERNiCr-3 Ni base alloy solid welding wire is engineered for excellence in welding, showcasing unparalleled resistance to ductility dip cracking. It enhances the tensile strength of the weld metal to match or exceed that of the base material while ensuring superb weldability.

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) Serves as the base metal, ensuring exceptional corrosion resistance.

Cr 18.0-22.0 Catalyzes enhanced oxidation resistance.

Nb (+Ta) 2.0-3.0 Stabilizes carbides, preventing intergranular corrosion.

Mn 2.5-3.5 Elevates toughness and minimizes hot cracking.

Fe ≤3.0 Control impurity levels effectively.

C ≤0.10 Limits carbide precipitation efficiently.

S/P ≤0.015/≤0.030 Reduces brittleness for improved weld quality.

2. Key Properties

Mechanical Performance:

Tensile Strength: ≥552 MPa (80,000 psi), ensuring exceptional durability.

Elongation: ≥30% (4d), offering flexibility and resilience.

High-Temperature Capabilities:

Operating Range: -196°C to +550°C, ideal for pressure vessels. Boasts oxidation resistance up to 1200°C in sulfur-free environments.

Exhibits excellent creep rupture strength under prolonged thermal stress.

Corrosion Resistance:

Defends against oxidation, stress corrosion cracking, and pitting in challenging environments such as sulfuric, phosphoric acids, and urea.

3. Welding Applications

Compatible Alloys:

Perfectly pairs with Nickel Alloys: INCONEL 600/601/690, INCOLOY 800/800HT/330.

Ideal for Dissimilar Metal Joints

Nickel alloys ↔ Carbon steel/stainless steel

INCOLOY 330 ↔ MONEL alloys.

Surface Cladding:

Effective for corrosion-resistant overlays on carbon steel components.

Process Compatibility:

Compatible with TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW).

Pairs with SAW Flux: INCOFLUX 4 (with NI-ROD 99 wire); Utilize ≤3 layers with INCOFLUX for optimal results.

4. Industry Use Cases

Aerospace: Ideal for turbine blades and combustion chambers, offering high-temperature oxidation resistance.

Nuclear: Suited for reactor vessels and fuel piping, withstanding creep strength in radiation environments.

Chemical Processing: Excellent for reactors and heat exchangers, resisting acid corrosion expertly.

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AWS A5.4	ERNi-1	ERNiCu-7	ERNiCr-3	ERNiCrFe-5	ERNiCrMo-3	ERNiCrMo-4	ERNiFeCr-1
Tensile Strength (N/mm^2)	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