Monel 60 (ERNiCu-7) Welding Wire Guide

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Overview

Monel 60 (AWS ERNiCu-7) is a nickel-copper welding wire for welding Monel 400 and R-405 alloys. Provides excellent corrosion resistance in seawater, hydrofluoric acid, and alkaline environments. Also used for overlay cladding on steel.

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

Monel 60 welding wire is used in a wide range of demanding applications:

• Monel 400: Welding of Monel 400 piping and components.
• Marine Engineering: Welding of seawater handling equipment.
• Chemical Processing: Welding of hydrofluoric acid equipment.
• Overlay Cladding: Corrosion-resistant overlay on carbon steel.
• Oil Refining: Welding of refinery components handling corrosive media.

Available Product Forms

Hangbo Alloy Group supplies Monel 60 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	ERNiCu-7
ISO 18274	S Ni 4060
EN ISO 18274	S Ni 4060
DIN 1736	SG-NiCu30Mn

Chemical Composition of ERNiCu-7 Welding Wire (wt%)

Element	Content (%)
Nickel (Ni)	62.0 – 69.0
Copper (Cu)	Balance
Manganese (Mn)	4.0 max
Iron (Fe)	2.5 max
Titanium (Ti)	2.0 – 3.0
Aluminium (Al)	1.25 max

Mechanical Properties of Deposited Metal

Property	Typical Value
Tensile Strength	550 MPa (80 ksi) min
Yield Strength (0.2%)	300 MPa (44 ksi) min
Elongation	30% min
Service Temperature	up to 535°C (1000°F)

Values above are typical for as-welded Monel 60 (ERNiCu-7) deposited metal under AWS A5.14 classification requirements. Actual results vary with welding process, heat input and shielding gas.

Why Choose Monel 60 Welding Wire

• Titanium deoxidation greatly reduces weld porosity — a common defect when welding copper-nickel alloys.
• Outstanding resistance to flowing sea water, brackish water and marine atmospheres.
• Resists hydrofluoric acid and anhydrous HF across a wide concentration range.
• Good strength and toughness from cryogenic temperatures to about 535°C.

Welding Best Practices

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

• Clean thoroughly; sulphur and lead cause embrittlement in the nickel-copper weld metal.
• Use argon shielding for GTAW; argon-helium blends help on thicker sections needing more heat input.
• Keep interpass temperature below 150°C (300°F) and use modest heat input to limit hot cracking.
• For cast Monel repairs, preheat to 150–200°C and peen beads to relieve restraint.

Frequently Asked Questions

Contact Us for Monel 60

Hangbo Alloy Group supplies Monel 60 (ERNiCu-7) 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.