Project Description
ERNiFeCr-2
* Specification
AWS/ASME Spec 5.14
AWS Class ERNiFeCr-2
UNS N07718
* Chemical Composition,%
| C | Mn | Si | Cr | S | P | Ni | Fe | Cu | Al | Mo | Ti | Nb+Ta |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤0.35 | ≤0.35 | 17-21 | ≤0.015 | ≤0.015 | 50-55 | Rest | ≤0.3 | 0.2-0.8 | 2.8-3.3 | 0.65-1.15 | 4.75-5.5 |
* Typical Welding Parameter & Mechanical Property
| Diameter | Process | Volt | Amps | Shielding Gas | |
|---|---|---|---|---|---|
| In | mm | ||||
| 0.035 | 0.9 | GMAW | 26-29 | 150-190 | Spray Transfer 100% Argon |
| 0.045 | 1.2 | GMAW | 28-32 | 180-220 | |
| 1/16 | 1.6 | GMAW | 29-33 | 200-250 | |
| 1/16 | 1.6 | GTAW | 14-18 | 90-130 | 100% Argon |
| 3/32 | 2.4 | GTAW | 15-20 | 120-175 | 100% Argon |
| 1/8 | 3.2 | GTAW | 15-20 | 150-220 | 100% Argon |
| Tensile Strength MPa(ksi) | Yield Strength MPa(ksi) | Elongation % | |
|---|---|---|---|
| AWS requirement | 1140(165) | Not specified | Not specified |
| Typical results as welded | 860(125) | 630(91) | 27 |
* Feature
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.
* Application
Used for welding alloys 718, 706 and X-750.
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