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ErNiFeCr-2 SNi7718 / Inconel 718 welding wire – High-Strength MIG/TIG Filler Metal for Heat-Resistant Applications
ErNiFeCr-2 SNi7718 / Inconel 718 welding wire – High-Strength MIG/TIG Filler Metal for Heat-Resistant Applications
Specifications
Brand Name :
HUONA
Model Number :
WIRE
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
15kg
Price :
Bargain
Payment Terms :
T/T
Supply Ability :
1000ton /year
Delivery Time :
a week
Packaging Details :
Case
Diameter Range :
0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm, 2.4 mm, 3.2 mm (custom sizes available)
Welding Methods :
MIG (GMAW), TIG (GTAW)
Form :
Spool, Coil, Straight Rod
Packaging :
5kg/10kg/15kg Spools or 5kg Rod Packs
OEM Service :
Available (labels, logos, etc.)
Tensile Strength :
≥1240 MPa
Description

Product Description

ErNiFeCr-2 (AWS A5.14 classification) is a solid nickel-based filler metal specifically designed for welding Inconel 718, Inconel X-750, and similar precipitation-hardened high-strength alloys. It offers excellent weldability and mechanical properties, even in extreme temperature environments, making it ideal for aerospace, gas turbine, cryogenic, and high-pressure applications.

Also referred to as SNi7718 in Chinese standards, this alloy delivers exceptional strength, oxidation resistance, and stress rupture performance after post-weld heat treatment (PWHT).

ErNiFeCr-2 SNi7718 / Inconel 718 welding wire – High-Strength MIG/TIG Filler Metal for Heat-Resistant Applications

Common Names / Designations

  • AWS Specification: ErNiFeCr-2

  • UNS Number: N07718

  • Chinese Code: SNi7718

  • Trade Names: Inconel® 718 Welding Wire, Alloy 718 Wire

  • Other Names: Nickel 718 TIG Wire, Nickel 718 MIG Wire, NiFeCr Alloy Wire

Key Features

  • Designed for welding precipitation-hardened nickel alloys like Inconel 718 and X-750

  • Excellent high-temperature strength and corrosion resistance

  • Good weldability and crack resistance

  • Maintains integrity in cryogenic to elevated temperature ranges (–253°C to +700°C)

  • Suitable for PWHT (Aging/Heat Treatment)

  • Used in MIG (GMAW) and TIG (GTAW) processes

Typical Applications

  • Aerospace engines and turbine blades

  • Nuclear and gas power plants

  • High-pressure vessels and piping

  • Cryogenic equipment

  • Oil & gas components

  • Jet engine parts and fasteners

Chemical Composition (% Typical)

Element Content (%)
Nickel (Ni) 50.0 – 55.0
Chromium (Cr) 17.0 – 21.0
Iron (Fe) 17.0 – 21.0
Niobium (Nb+Ta) 4.75 – 5.50
Molybdenum (Mo) 2.80 – 3.30
Titanium (Ti) 0.65 – 1.15
Aluminum (Al) 0.20 – 0.80
C, Mn, Si, S Trace (≤0.10%)

Mechanical Properties (Post Heat Treatment)

Property Value
Tensile Strength ≥1240 MPa
Yield Strength ≥1035 MPa
Elongation ≥12%
Hardness ~331 HB
Operating Temp –253°C to 700°C

Available Specifications

Item Detail
Diameter Range 0.8 mm – 3.2 mm
Welding Methods MIG (GMAW), TIG (GTAW)
Form Spool, Coil, Straight Rod
Packaging 5kg/10kg/15kg Spools or 5kg Rod Packs
OEM Service Available (labels, logos, etc.)

Note

We provide full traceability, mill test certificates (MTC), and export packaging. Custom solutions for aerospace and critical-use customers available on request.

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ErNiFeCr-2 SNi7718 / Inconel 718 welding wire – High-Strength MIG/TIG Filler Metal for Heat-Resistant Applications

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Product Detail
Brand Name :
HUONA
Model Number :
WIRE
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
15kg
Price :
Bargain
Contact Supplier
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ErNiFeCr-2 SNi7718 / Inconel 718 welding wire – High-Strength MIG/TIG Filler Metal for Heat-Resistant Applications

Huona (Shanghai) New Material Co., Ltd.

Verified Supplier
1 Years
shanghai, shanghai
Since 2008
Business Type :
Manufacturer, Exporter
Main Products :
Low Expansion Alloy, Soft Magnetic Alloy, Elastic Alloy
Total Annual :
8000000-100000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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