Exceptional ERNiCr-3 Welding Rod with Superior Strength and Quality

• 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
Introducing our Ni base alloy solid welding wire, expertly designed for superior welding performance. This exceptional wire resists cracking, particularly ductility dip cracking, offering enhanced reliability in weld metal. It ensures that the tensile strength of the weld metal meets or exceeds that of the base material, providing unmatched weld ability 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) Provides the foundation for excellent corrosion resistance as the base metal.

Cr 18.0-22.0 Adds robust oxidation resistance characteristics.

Nb (+Ta) 2.0-3.0 Ensures protection against intergranular corrosion by stabilizing carbides.

Mn 2.5-3.5 Enhances toughness while minimizing the risks of hot cracking.

Fe ≤3.0 Maintains purity by controlling impurities.

C ≤0.10 Reduces the likelihood of carbide precipitation.

S/P ≤0.015/≤0.030 Essential in minimizing brittleness.

2. Key Properties

Mechanical Performance:

Tensile Strength: ≥552 MPa (80,000 psi), ensuring robust structural integrity.

Elongation: ≥30% (4d), providing excellent flexibility under stress.

High-Temperature Capabilities:

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

Creep Rupture Strength: Outstanding performance under continuous thermal stress.

Corrosion Resistance:

Resilient against oxidation, stress corrosion cracking, and pitting in aggressive environments such as sulfuric and phosphoric acids, as well as urea.

3. Welding Applications

Compatible Alloys:

Perfectly suited for 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:

Exceptional for creating corrosion-resistant overlays on carbon steel components.

Process Compatibility:

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

SAW Flux Pairing: Optimal with INCOFLUX 4 (using NI-ROD 99 wire); Suitable for up to ≤3 layers with INCOFLUX.

4. Industry Use Cases

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

Nuclear: Ideal for reactor vessels and fuel piping, providing excellent creep strength in radiation-dense environments.

Chemical Processing: Essential for reactors and heat exchangers, delivering exceptional resistance to acid corrosion.

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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