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INCONEL® Filler Metal 718 (ERNiFeCr-2)
Specification
INCONEL® Filler Metal 718 is used for gas-tungsten-arc welding of INCONEL alloys 718, 706 and X-750. The weld metal is age-hardenable and has mechanical properties comparable to those of the base metals.
Specification Chart of INCONEL® Filler Metal 718
| Specifications |
AWS A5.14 ERNiFeCr-2 (UNS N07718) |
| AWS |
AWS A5.14 |
| Class |
ERNiFeCr-2 |
| Available Diameters |
- 0.030" (0.8mm)
- 0.035" (0.9mm)
- 0.040" (1.0mm)
- 0.045" (1.14mm)
- 0.047" (1.2mm)
- 0.062" (1.6mm)
- 0.093" (2.4mm)
- 0.125" (3.2mm)
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| Length |
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| Packaging (kg) |
TIG
- 0.062" (1.6mm) x 39" (1000mm) : 5.0 Kg x Pack
- 0.093" (2.4mm) x 39" (1000mm) : 5.0 Kg x Pack
MIG
- 0.035" (0.9mm): 15Kg x Spool
- 0.047" (1.2mm): 15Kg x Spool
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| Key Features |
- Used for welding alloys 718, 706 and X-750.
- Primarily for welding high-strength aircraft components and liquid rocket components involving cryogenic temperatures.
- High heat input processes such as MIG welding often result in micro fissuring. This alloy can be age-hardened to higher strengths.
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INCONEL® Filler Metal 718 Details
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 718 TIG A5.14 ERNiFeCr-2
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 718 MIG A5.14 ERNiFeCr-2
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 718 MIG A5.14 ERNiFeCr-2
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Application of INCONEL® Filler Metal 718
Key applications and industries where this welding electrode finds extensive use:
- Aerospace and Aviation Industry: ErNiFeCr-2 filler metal is commonly employed in the aerospace and aviation sectors for joining nickel-chromium-iron alloys used in critical components of aircraft engines, gas turbine parts, combustion chambers, and exhaust systems. These alloys offer exceptional high-temperature strength and resistance to corrosion, making them ideal for operating in the demanding conditions encountered in aviation applications.
- Petrochemical and Chemical Processing: In the petrochemical and chemical processing industries, ErNiFeCr-2 filler metal plays a crucial role in fabricating components that are exposed to aggressive chemical environments and elevated temperatures. Nickel-chromium-iron alloys, joined using ErNiFeCr-2, are used in reactors, heat exchangers, distillation columns, and other equipment where corrosion resistance and mechanical integrity are paramount.
- Nuclear Engineering: ErNiFeCr-2 filler metal is also extensively used in nuclear engineering due to its compatibility with nickel-chromium-iron alloys used in nuclear reactor components. These alloys exhibit excellent resistance to corrosion and maintain their mechanical properties even under the harsh conditions found in nuclear power plants.
- High-Temperature Applications: ErNiFeCr-2 filler metal is well-suited for high-temperature applications in various industries, including power generation, heat treatment, and metal refining. The welds produced with this filler metal can withstand prolonged exposure to elevated temperatures without significant loss of mechanical strength or corrosion resistance.
- Marine and Offshore Applications: In marine and offshore environments where exposure to seawater and aggressive marine atmospheres is prevalent, ErNiFeCr-2 filler metal is utilized to join nickel-chromium-iron alloys for components such as seawater piping, marine shafts, and offshore drilling equipment.
- Speciality Alloys Fabrication: ErNiFeCr-2 filler metal is suitable for welding specialty nickel-chromium-iron alloys that require precise control over composition and mechanical properties. These alloys are often tailored for specific applications in industries like electronics, aerospace, and chemical processing.
INCONEL® Filler Metal 718 Chemical Composition
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AWS A5.14
ERNiFeCr-2
UNS N07718
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Cr |
Cu |
Nb + Ta
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S |
Ni
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C
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Mn
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Si
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P
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17 - 21
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0.30 max
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4.75 - 5.50
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0.015 max
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50.0 - 55.0
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0.08 max
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0.35 max
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0.35 max
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0.015 max
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| Fe |
Zr |
Ti |
Co |
Mo |
AI |
B |
W |
Other |
Reminder
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--
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0.65 - 1.15
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1.0 max
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2.80 - 3.30
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0.20 - 0.80
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0.006 max
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--
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-- |
- Ni = Nickel
- Cr = Chromium
- Mn = Manganese
- TA = Tantalum
- Nb = Niobium
- Fe = Iron
- Ti = Titanium
- Si = Silicon
- Cu = Copper
- C = Carbon
- P = Phosphorus
- S = Sulfur
- Co = Cobalt
For more symbols click here
Mechanical Properties of INCONEL® Filler Metal 718
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Tensile Strength MPa (ksi) |
Yield Strength MPa (ksi)
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Elongation % |
| AWS Requirements |
165 Ksi / 1140 MPa typical
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Not Specified |
Not Specified |
| Typical Performance |
125Ksi / 860 MPa |
91Ksi / 630 MPa |
27% |
| Density g/cm3 |
Melting Point ℃ |
Electrical Resistivity μΩ-m |
Permeability at 70°F (21°C) and 200 oersted (15.9 kA/m) |
| 8.14 g/cm3 |
1370 - 1400 ℃ |
1.22 |
1.005 |
Typical Welding Parameters of INCONEL® Filler Metal 718
| Diameter |
Process |
Volt |
Amps
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Gas |
| .047" |
1.2mm |
TIG |
13 - 16
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80 - 110
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100% Argon |
| 1/16" |
1.6mm |
TIG |
14 - 18
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90 - 130
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| 3/32" |
2.4mm |
TIG |
15 - 20
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120 - 175
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| 1/8" |
3.2mm |
TIG |
15 - 20 |
150 - 220
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| .035" |
0.9mm |
MIG |
26 - 29
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150 - 190
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75% Argon + 25% Helium |
| .047" |
1.2mm |
MIG |
28 - 32 |
180 - 220 |
75% Argon + 25% Helium |
| 1/16" |
1.6mm |
MIG |
29 -33 |
200 - 250 |
75% Argon + 25% Helium |
| 3/32" |
2.4mm |
SAW |
28 - 30 |
275 - 350 |
Suitable Flux may be used |
| 1/8" |
3.2mm |
SAW |
29 - 32 |
350 - 450 |
Suitable Flux may be used |
| 5/32" |
4.0mm |
SAW |
30 - 33 |
400 - 550 |
Suitable Flux may be used |
Our Pricing list of INCONEL® Filler Metal 718
| Our Part No. |
ERNiFeCr-2 Filler Metal 718 Details List |
ERNiFeCr-2 Filler Metal 718 Price |
| M71809S |
718 MIG - AWS A5.14 ERNiFeCr-2 / 0.035" (0.9mm) Od - (15 Kg per spool) For welding INCONEL alloys 718, 706 and X-750 |
- US $ 260.00 x Kilogram
- US $ 3,900.00 x Spool
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| M71812S |
718 MIG - AWS A5.14 ERNiFeCr-2 / 0.047" (1.20mm) Od - (15 Kg per spool) For welding INCONEL alloys 718, 706 and X-750
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- US $ 240.00 x Kilogram
- US $ 3,600.00 x Spool
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| M71816S |
718 MIG - AWS A5.14 ERNiFeCr-2 / 0.062" (1.60mm) Od - (15 Kg per spool) For welding INCONEL alloys 718, 706 and X-750 |
- US $ 236.00 x Kilogram
- US $ 3,540.00 x Spool
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| T71816S |
718 TIG - AWS A5.14 ERNiFeCr-2 / 0.062" (1.60mm) Od - Lenght 39" (1000mm) (4.54 Kg per Pack) For welding alloy 617
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- US $ 236.00 x Kilogram
- US $ 1,071.00 x Pack
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| T71824S |
718 TIG - AWS A5.14 ERNiFeCr-2 / 0.093" (2.40mm) Od - Lenght 39" (1000mm) (4.54 Kg per Pack) For welding alloy 617 |
- US $ 236.00 x Kilogram
- US $ 1,071.00 x Pack
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Conclusion
ErNiFeCr-2 filler metal plays a significant role in welding nickel-chromium-iron alloys, enabling the construction of components with exceptional strength, corrosion resistance, and high-temperature capabilities. Its use contributes to the successful operation of critical components in industries that demand reliability and performance under challenging conditions. Welders must adhere to proper welding procedures, and exercise skills, and ensure thorough material knowledge to achieve high-quality welds that meet the stringent requirements of the industries where these materials are employed. With its unique properties and applications, ErNiFeCr-2 filler metal continues to be a valuable resource for the welding community, driving innovation and progress in various technological fields.
INCONEL® Filler Metal 718 suppliers
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