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ERNiCu-7 Welding Wire (SNi4060 / Monel 400) – Nickel-Copper Alloy MIG/TIG Filler Metal

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ERNiCu-7 Welding Wire (SNi4060 / Monel 400) – Nickel-Copper Alloy MIG/TIG Filler Metal

Name: ERNiCu7 Welding Wire SNi4060 Monel 400 NickelCopper Alloy MIGTIG Filler Metal
Brand: HUONA
Price: 1 USD

Brand Name : HUONA

Model Number : WIRE

Certification : ISO9001

Place of Origin : CHINA

MOQ : 15

Price : Bargain

Payment Terms : T/T

Supply Ability : 1000ton/year

Delivery Time : a week

Packaging Details : Case

Tensile Strength : ≥550 MPa

Yield Strength : ≥240 MPa

Elongation : ≥30%

Wire Diameter : 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm, 2.4 mm, 3.2 mm (customizable)

Welding Process : TIG (GTAW), MIG (GMAW)

OEM Service : Private label, barcode, customized packaging

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Product Description

ERNiCu-7 (AWS A5.14) welding wire is a solid solution nickel-copper alloy filler metal designed for welding Monel 400 and other similar Ni-Cu alloys. It provides excellent corrosion resistance in seawater, brine, salt, and acidic environments, making it ideal for marine, chemical, and food processing industries.

The wire is widely used for TIG (GTAW) and MIG (GMAW) welding processes. Its stable arc, low spatter, and ease of use make it a preferred choice for both fabrication and maintenance welding in harsh conditions.

SNi4060 is the corresponding Chinese designation for ERNiCu-7, compliant with GB/T standards.

ERNiCu-7 Welding Wire (SNi4060 / Monel 400) – Nickel-Copper Alloy MIG/TIG Filler Metal

Common Names / Designations

AWS Specification: ERNiCu-7
Chinese Designation: SNi4060
UNS Number: N04400 (related base metal)
Trade Names: Monel 400 Welding Wire, Alloy 400 Filler Wire
Other Aliases: Nickel-Copper Welding Wire, NiCu Welding Wire

Key Features

High corrosion resistance to seawater, acids, alkalis, and brine
Excellent resistance to pitting and stress corrosion cracking
Suitable for dissimilar welding between Ni-Cu and carbon or low alloy steels
Good arc stability and weld bead appearance
Ideal for both fabrication and repair welding

Typical Applications

Marine structures and shipbuilding
Offshore oil & gas pipelines
Heat exchangers and condensers
Pump shafts, valves, and seawater equipment
Food processing and chemical handling systems
Dissimilar metal joints (Monel to steel)

Chemical Composition (% Typical)

Element	Content (%)
Nickel (Ni)	62.0 – 69.0
Copper (Cu)	29.0 – 33.0
Iron (Fe)	≤2.5
Manganese (Mn)	≤2.5
Carbon (C)	≤0.15
Silicon (Si)	≤1.25
Sulfur (S)	≤0.015

Mechanical Properties (Typical)

Property	Value
Tensile Strength	≥550 MPa
Yield Strength	≥240 MPa
Elongation	≥30%
Hardness (HB)	~140–180
Operating Temperature	Up to ~500°C

Available Specifications

Item	Detail
Wire Diameter	0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm, 2.4 mm, 3.2 mm (customizable)
Welding Process	TIG (GTAW), MIG (GMAW)
Spool Packaging	5kg / 10kg / 15kg / 20kg
Surface Finish	Bright, Cleaned, Anti-rust Coated
OEM Service	Private label, barcode, customized packaging

Note

Also available: Monel K500, Inconel 625, Hastelloy C276, and other nickel alloy wires. Free samples and technical support can be provided upon request.

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