Nickel 61 (ERNi-1) Welding Wire Guide

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What is Nickel 61 (ERNi-1) Welding Wire Guide?

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.

What welding parameters are recommended for Nickel 61 (ERNi-1) Welding Wire Guide?

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

Where is Nickel 61 (ERNi-1) Welding Wire Guide used?

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.

Which product forms are available for Nickel 61 (ERNi-1) Welding Wire Guide?

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.

Which standards cover Nickel 61 (ERNi-1) Welding Wire Guide?

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

General references: Nickel Institute · AMPP · SAE International · ASTM International

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

What are the mechanical properties of Nickel 61 (ERNi-1) Welding Wire Guide 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.

What are the best practices for welding Nickel 61 (ERNi-1) Welding Wire Guide?

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.

How do you select the right filler wire for Nickel 61 (ERNi-1) Welding Wire Guide?

Nickel 61 (ERNi-1) is the matching filler for its base alloy and is specified for joints where its particular corrosion or high-temperature performance is required. Match the wire form and diameter to the welding process and section thickness:

• GTAW: 1.6-2.4 mm wire for root passes and thin sections; 3.2 mm for heavier fill.
• GMAW: 0.8-1.6 mm spools for high-deposition fabrication and nickel overlay.
• SAW: 2.4-4.0 mm coils for long seams and cladding of steel.

Use Nickel 61 for welding pure nickel such as Nickel 200 and Nickel 201; the titanium addition controls porosity, which is essential for sound caustic-service welds.

Which base metals are compatible with Nickel 61 (ERNi-1) Welding Wire Guide?

ERNi-1 is the matching filler for commercially pure Nickel 200 and 201, and it is a classic consumable for repairing cast iron by GTAW or GMAW, because the nickel weld metal absorbs carbon without forming brittle martensite. It is also used for cladding steel with a corrosion-resistant pure-nickel layer in caustic service. See our caustic soda alloy selection guide for matching materials.

How should Nickel 61 (ERNi-1) Welding Wire Guide be stored, handled and certified?

Nickel-alloy filler metals are sensitive to moisture, surface contamination and trace impurities, so proper storage and handling are essential to weld integrity:

• Store spools and cut lengths in a clean, dry area and keep original packaging sealed until use to avoid condensation and humidity pickup.
• Remove oil, grease, sulphur, lead and phosphorus before welding — these impurities can cause hot cracking or embrittlement in nickel weld metal.
• Use dedicated stainless-steel wire brushes and tools reserved for nickel alloys only, to prevent iron contamination.
• For GTAW, keep the filler within the argon shield and maintain a short arc to prevent oxidation of the hot weld pool.

Hangbo Alloy Group supplies Nickel 61 (ERNi-1) welding wire with full EN 10204 3.1 material certificates, cast/lot traceability and chemical and mechanical test reports. Contact our sales team for batch-specific certification or technical support.

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 13611656360.