Martensitic aging steel for additive manufacturing
Die-casting molds often operate continuously in environments with impact loads, alternating hot and cold temperatures, or corrosion. This places high demands on the mold’s overall mechanical properties, requiring not only high tensile strength but also a certain degree of toughness and ductility, especially impact toughness.
18Ni 300 maraging steel is a low-carbon, high-strength steel with high hardness (> 50 HRC), toughness, and strength.
It exhibits high dimensional stability and low deformation. It also possesses excellent machinability and maintains its properties even at temperatures reaching ~400°C, making it widely used in the manufacture of high-performance die-casting molds.
Range of chemical composition
| C | Ni | Co | Mo | Ti | Al |
|---|---|---|---|---|---|
| ≤0.01 | ≤18.0 | ≤9.0 | ≤5.0 | ≤0.7 | ≤0.1 |
Physical properties
| Granularity range | 15-53 µm |
|---|---|
| Hardness after heat treatment | 50-56 HRC |
| Hallflow rate | ≤18s / 50 g |
| Loose packing density | 4.82 g/cm3 |
| Heat conductivity | 20 W/m.K |
| Impact energy (920°C + 490°C x 2) | 11 J |
| Ensile strength (920°C + 490°C x 2) | 1930 MPa |
Download the TFM 18Ni 300 datasheet (PDF)
More grades: Metal Powders. Where to buy: Service Network.
