Superior Strength ERNiCr-3 Nickel Welding Wire for Reliable Use

• 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
This cutting-edge Ni base alloy solid welding wire, ERNiCr-3, is expertly engineered for seamless welding applications. It boasts remarkable resistance to ductility dip cracking within the weld metal, ensuring a tensile strength that meets or exceeds that of the base material. Moreover, its exceptional weldability makes it a superior choice for demanding projects.

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) This base metal is key for ensuring exceptional corrosion resistance.

Cr 18.0-22.0 Crucial for enhancing oxidation resistance, this component is indispensable.

Nb (+Ta) 2.0-3.0 Essential for preventing intergranular corrosion through effective carbide stabilization.

Mn 2.5-3.5 This element boosts toughness and significantly reduces the risk of hot cracking.

Fe ≤3.0 Controlled to maintain impurity levels at a minimum.

C ≤0.10 Minimizes the risk of carbide precipitation, enhancing material integrity.

S/P ≤0.015/≤0.030 Ensures brittleness is kept at bay for superior durability.

2. Key Properties

Mechanical Performance:

Tensile Strength: Achieve powerful resilience with a tensile strength of ≥552 MPa (80,000 psi).

Elongation: Offers impressive flexibility with an elongation of ≥30% (4d).

High-Temperature Capabilities:

Operating Range: Versatile functionality from -196°C to +550°C, perfect for pressure vessels; withstand oxidation resistance up to 1200°C in sulfur-free environments.

Creep Rupture Strength: Delivers exceptional performance under sustained thermal stress.

Corrosion Resistance:

Expertly resists oxidation, stress corrosion cracking, and pitting in acidic environments like sulfuric, phosphoric acids, and urea settings.

3. Welding Applications

Compatible Alloys:

Seamlessly joins with Nickel Alloys: INCONEL 600/601/690, INCOLOY 800/800HT/330.

Dissimilar Metal Joints

Nickel alloys ↔ Effortlessly combines with Carbon steel/stainless steel.

INCOLOY 330 ↔ Seamless with MONEL alloys.

Surface Cladding:

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

Process Compatibility:

Perfectly suited for TIG/GTAW, MIG/GMAW, and Submerged Arc Welding (SAW) processes.

SAW Flux Pairing: Optimal with INCOFLUX 4 when paired with NI-ROD 99 wire; achieves excellence with ≤3 layers using INCOFLUX.

4. Industry Use Cases

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

Nuclear: A premier choice for reactor vessels and fuel piping, ensuring reliable creep strength even in radiation-rich environments.

Chemical Processing: Our welding wire excels in crafting reactors and heat exchangers, offering unparalleled resistance to acid corrosion to ensure longevity and safety in demanding chemical environments.

Energy: Perfectly suited for boiler components and exhaust systems, this product provides exceptional thermal cycling durability, ensuring consistent performance under high temperature fluctuations.

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