X-L is a gold-reduced casting alloy with a golden yellow colour. The coordinated material properties allow successful clinical use in various different areas of indication.
| Composition (%): | Au 61.7 | Pd 3.0 | Ag 25.2 | Cu 9.6 | In <1.0, Ir <1.0 |
| ISO | 22674:2016 |
| ADA Type | High Noble |
| Type / Color | 4 / Yellow |
| Density (g/cm³) | 14.0 |
| Melting Range (Solidus/Liquidus): | 890 - 950 °C |
| Elastic Modulus (GPa): | 105 |
| As Cast Softened Hardened | |
| Vickers Hardness: | 150 125 240 |
| Tensile Strength (MPa): | 500 410 660 |
| 0.2% Proof Stress (MPa): | 390 270 515 |
| Elongation (%): | 26 35 18 |
| Investment Material: | Phosphate-bonded / Gypsum-bonded |
| Preheating / Burn- out Temperature: | 650 - 760 °C |
| Crucible | Carbon crucible / Ceramic crucible |
| Casting Temperature: | 1010 - 1070 °C |
| Laser Welding Wire: | Laser C&B Yellow |
*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES