ERNiCr-3 Nickel Welding Wire - Superior 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
Ni base alloy solid welding wire for welding which has excellent cracking resistance to ductility dip cracking in weld metal, can increase the tensile strength of the weld metal to not less than the tensile strength of the base material, and has excellent weld ability.
 

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, ensures corrosion resistance

Cr 18.0-22.0 Enhances oxidation resistance

Nb (+Ta) 2.0-3.0 Prevents intergranular corrosion via carbide stabilization

Mn 2.5-3.5 Improves toughness and reduces hot cracking

Fe ≤3.0 Impurity control

C ≤0.10 Minimizes carbide precipitation

S/P ≤0.015/≤0.030 Reduces brittleness

2. Key Properties

Mechanical Performance:

Tensile Strength: ≥552 MPa (80,000 psi)

Elongation: ≥30% (4d) .

High-Temperature Capabilities:

Operating Range: -196°C to +550°C (pressure vessels); oxidation resistance up to 1200°C (sulfur-free environments)

Creep Rupture Strength: Excellent under sustained thermal stress.

Corrosion Resistance:

Resists oxidation, stress corrosion cracking, and pitting in acids (e.g., sulfuric, phosphoric) and urea environments .

3. Welding Applications

Compatible Alloys:

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

Dissimilar Metal Joints

Nickel alloys ↔ Carbon steel/stainless steel

INCOLOY 330 ↔ MONEL alloys.

Surface Cladding:

Used for corrosion-resistant overlays on carbon steel components .

Process Compatibility:

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

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

4. Industry Use Cases

Aerospace: Turbine blades, combustion chambers (high-temperature oxidation resistance) .

Nuclear: Reactor vessels, fuel piping (creep strength in radiation environments) .

Chemical Processing: Reactors, heat exchangers (acid corrosion resistance) .

Energy: Boiler components, exhaust systems (thermal cycling durability) .

 

 

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