Nickel 61 (ERNi-1) Welding Wire Guide

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Overview

Nickel 61 (AWS ERNi-1) is a commercially pure nickel welding wire for welding Nickel 200 and 201. Provides excellent corrosion resistance in caustic and reducing environments. The titanium addition helps control porosity and improve weld quality.

Welding Parameters

Parameter	GTAW	GMAW
Shielding Gas	Argon (99.995%)	Ar + 2% He or Ar + 2% CO2
Gas Flow Rate	8-15 L/min	15-25 L/min
Wire Diameter	1.6-3.2 mm	0.8-1.6 mm
Current Type	DCEN	DCEP
Welding Position	All positions	Flat / Horizontal

Applications

Nickel 61 welding wire is used in a wide range of demanding applications:

• Nickel 200/201: Welding of pure nickel piping and vessels.
• Caustic Service: Welding of caustic soda processing equipment.
• Chemical Processing: Welding of reducing acid equipment.
• Electronics: Welding of electronic and battery components.
• Overlay Cladding: Nickel overlay on steel for corrosion protection.

Available Product Forms

Hangbo Alloy Group supplies Nickel 61 welding wire in the following forms:

• TIG Wire: Straight lengths 1000 mm, diameters 1.6 mm, 2.0 mm, 2.4 mm, 3.2 mm.
• MIG Wire: Precision-wound spools (D200, D300), diameters 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm.
• SAW Wire: Coils for submerged arc welding, diameters 2.4 mm, 3.2 mm, 4.0 mm.

Related Standards

Standard	Description
AWS A5.14	ERNi-1
ISO 18274	S Ni 2061
EN ISO 18274	S Ni 2061
DIN 1736	SG-NiTi3

Chemical Composition of ERNi-1 Welding Wire (wt%)

Element	Content (%)
Nickel (Ni)	93.0 min
Titanium (Ti)	2.0 – 3.5
Manganese (Mn)	1.0 max
Iron (Fe)	1.0 max
Copper (Cu)	0.25 max
Carbon (C)	0.15 max

Mechanical Properties of Deposited Metal

Property	Typical Value
Tensile Strength	480 MPa (70 ksi) min
Yield Strength (0.2%)	240 MPa (35 ksi) min
Elongation	30% min
Service Temperature	up to 600°C (1110°F)

Values above are typical for as-welded Nickel 61 (ERNi-1) deposited metal under AWS A5.14 classification requirements. Actual results vary with welding process, heat input and shielding gas.

Why Choose Nickel 61 Welding Wire

• Titanium deoxidation produces sound, porosity-free welds in commercially pure nickel.
• Excellent resistance to caustic soda (NaOH) and other alkaline media across all concentrations.
• Low carbon and controlled silicon help avoid graphitisation and embrittlement at elevated temperature.
• Ideal for cladding and surfacing steel with a corrosion-resistant pure nickel layer.

Welding Best Practices

Follow these practical guidelines to obtain sound, corrosion-resistant welds with this filler metal:

• Remove all sulphur, lead and phosphorus contamination — nickel weld metal is very sensitive to these elements.
• Use DCEN polarity with argon shielding for GTAW; keep the arc short and the filler within the shield.
• No preheat required for thin sections; heavy restrained joints benefit from 100–150°C.
• For caustic service, avoid sulphur-bearing cutting fluids during joint preparation.

Frequently Asked Questions

Contact Us for Nickel 61

Hangbo Alloy Group supplies Nickel 61 (ERNi-1) welding wire with full material certifications. We ensure consistent wire quality with precise diameter control, clean surface finish, and uniform feeding performance.

For quotations, material certifications, or technical consultation, contact our sales team or call +86 166 2109 2936.