Chemical Composition
| Element | Weight % |
|---|---|
| Iron | Bal. |
| Carbon | ≤0.07 |
| Silicon | ≤1.0 |
| Manganese | ≤1.0 |
| Chromium | 15.0 - 17.5 |
| Nickel | 3.0 - 5.0 |
| Copper | 3.0 - 5.0 |
| Niobium | 0.15 - 0.45 |
| Phosphorus | ≤0.015 |
| Sulfur | ≤0.015 |
| Oxygen | ≤0.08 |
| Nitrogen | ≤0.1 |
Mechanical Properties
| Deposited state | After Heat treatment | |
| Yield strength | ≥1050 MPa | ≥1250 MPa |
| Tensile strength | ≥1100 MPa | ≥1310 MPa |
| Elongation | ≥15.0 % | ≥12.0 % |
Morphology
| Particle size distribution | ||
|---|---|---|
| D10 | D50 | D90 |
| ≥15 µm | 30 - 40 µm | ≤56 µm |
| Sphericity | ≥0.9 | |
| Packing density | ≥4.0 cm³ | |
| Tap density | ≥4.5cm³ | |
| Flowability | ≤20 s/50g | |
