ErNiFeCr-2 SNi7718 / Inconel 718 welding wire – High-Strength MIG/TIG Filler Metal for Heat-Resistant Applications
Price:
Bargain
MOQ:
15kg
Delivery Time:
a week
Brand:
HUONA
Product Description
ErNiFeCr-2 SNi7718 / Inconel 718 Welding Wire – High-Strength MIG/TIG Filler Metal for Heat-Resistant Applications
Product Attributes
| Attribute | Value |
|---|---|
| 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 |
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).
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.) |
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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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Huona (Shanghai) New Material Co., Ltd.
Location
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person
Roy