Description
ERNiFeCr-2 is used for gas-tungsten-arc welding of Inconel alloy 718, 706 and X-750. The weld metal is age hardenable and has mechanical properties comparable to those of the base metals.. It can equivalent to: Oxford Alloy 718 FM 718, Techalloy 718.
Applications
ERNiFeCr-2 mainly used for welding high-strength aircraft components, and liquid rocket components involving cryogenic temperatures. This alloy can be age hardened to higher strengths.
Product Details
Chemical composition
| Grade |
Chemical composition(%) |
| ERNiFeCr-2 |
C |
S |
P |
Si |
Mn |
Ni |
Co |
| ¡Ü0.08 |
¡Ü0.015 |
¡Ü0.015 |
¡Ü0.35 |
¡Ü0.35 |
50~55 |
¡Ü1.0 |
| Al |
Cu |
Mo |
Ti |
Fe |
Cr |
Nb+Ta |
| 0.2~0.8 |
¡Ü0.3 |
2.8~3.3 |
0.65~1.15 |
Bal |
¡¡17~21 |
4.75~5.5 |
Mechanical properties
| Tensile Strength |
Yield Strength |
Elongation |
| 860Mpa |
630Mpa |
27 |
Welding paramaters
| Process |
Diameter |
Voltage |
Amperage |
Gas |
| TIG |
.045¡± (1.2mm) |
13-16 |
80-110 |
100% Argon |
| 1/16¡± (1.6mm) |
14-18 |
90-130 |
100% Argon |
| 3/32¡± (2.4mm) |
15-20 |
120-175 |
100% Argon |
| 1/8¡± (3.2mm) |
15-20 |
150-220 |
100% Argon |
| MIG |
.045¡± (1.2mm) |
28-32 |
180-220 |
75% Argon + 25% Helium |
| 1/16¡± (1.6mm) |
29-33 |
200-250 |
75% Argon + 25% Helium |
| SAW |
3/32¡± (2.4mm) |
28-30 |
275-350 |
Suitable Flux may be used |
| 1/8¡± (3.2mm) |
29-32 |
350-450 |
Suitable Flux may be used |
| 5/32¡± (4.0mm) |
30-33 |
400-550 |
Suitable Flux may be used |
Specifications
AWS A5.14, ERNiFeCr-2 ASME II, SFA-5.14, ERNiFeCr-2 UNS N07718 ISO SNi7718 DIN 1736 SG-NiCr19NbMoTi Europe NiFe19Cr19Nb5Mo3
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