ERNiCr-3 Nickel Welding Wire with Premium Strength and Durability

• 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 Nickel Welding Wire is a superior Ni-based alloy solid welding wire engineered to perform with remarkable prowess. Its formulation ensures outstanding resistance to ductility dip cracking in weld metal, boosting the tensile strength to match or surpass the base material's strength. Additionally, it offers exceptional weldability for flawless and robust joint formations.

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) Base metal, offers premium corrosion resistance properties.

Cr 18.0-22.0 Augments oxidation resistance for durability in hostile conditions.

Nb (+Ta) 2.0-3.0 Thwarts intergranular corrosion by stabilizing carbides.

Mn 2.5-3.5 Enhances toughness and mitigates the risk of hot cracking.

Fe ≤3.0 Maintains purity by controlling impurities.

C ≤0.10 Restricts carbide precipitation for structural integrity.

S/P ≤0.015/≤0.030 Minimizes brittleness, ensuring ductility.

2. Key Properties

Mechanical Performance:

Tensile Strength: ≥552 MPa (80,000 psi) for a robust hold and endurance.

Elongation: ≥30% (4d) for flexibility and adaptability under stress.

High-Temperature Capabilities:

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

Creep Rupture Strength: Remarkable performance under continuous thermal stress.

Corrosion Resistance:

Exhibits superior resistance against oxidation, stress corrosion cracking, and pitting, especially in acidic environments such as sulfuric, phosphoric, and urea solutions.

3. Welding Applications

Compatible Alloys:

Seamlessly pairs with Nickel Alloys like 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 applying corrosion-resistant overlays on carbon steel components.

Process Compatibility:

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

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

4. Industry Use Cases

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

Nuclear: Suitable for reactor vessels and fuel piping, providing creep strength under radiation exposure.

Chemical Processing: Exceptional for reactors and heat exchangers due to its acid corrosion resistance.

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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