Universal titanium alloy 6AL-4V ( ELD ) is similar to type 6AI-4V in the chemical analysis except for extra Low Interstitial gases ( ELI ) By controlling these contaminating gases the fracture toughness is greatly increased. Alloy 4956 is used to weld liquid hydrogen tankage and airframe parts requiring a high fracture toughness
The chemical composition difference
| Standards | Al | V | C | H | Fe | N | O | Other |
| AMS 4956 | <=6.75 | <=4.5 | <=0.03 | <=0.005 | <=0.2 | <=0.012 | <=0.08 | <0.1 |
| AWSA5.16 | 5.5~6.75 | 3.5~4.5 | <=0.05 | <=0.015 | <=0.22 | <=0.03 | 0.12~0.2 | - |
Mechanical properties/Mpa (room temperature) almost are the same
| Tensile strength | 896 |
| Yield | 827 |
| Elongation | 10% |
The most important is AMS 4956 has low-temperature mechanical properties requirement
Mechanical properties/Mpa -196℃
| Tensile strength | 1500 |
| Yield | 1390 |
| Elongation | 14% |
For more information about 6Al4V Eli titanium wire, and titanium welding wire, please contact our sales engineer.
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