Product Description
Ferromolybdenum is an iron-molybdenum alloy primarily composed of molybdenum (Mo: 50%-75%) and iron, with trace impurities like carbon, silicon, sulfur, and phosphorus. It is produced by reducing molybdenum ores (e.g., molybdenite) with iron and carbon in submerged arc furnaces, serving as a key additive in steelmaking to introduce molybdenum into alloys efficiently.
- High melting point (~1800°C), for high-temperature steelmaking.
- Boosts steel’s hardness, strength, and creep resistance via stable carbide formation.
- Enhances corrosion/oxidation resistance; balances strength and toughness in alloys.
- Low impurities (S, P ≤0.05%) to protect steel quality.
Applications
- Steelmaking:
- HSLA steels (bridges, pipelines) for added strength.
- Heat-resistant steels (boilers, turbines) for high-temperature stability.
- Stainless steels (316/317 grades) for corrosion resistance.
- Tool steels for improved wear resistance.
- Cast irons: Refines structure for stronger automotive parts (e.g., crankshafts).
- Superalloys: Used in aerospace (jet engines) for high-temperature performance.
Specifications
| Grades | Chemical Composition(%) | |||||
| Mo | Si≤ | S≤ | P≤ | C≤ | Cu≤ | |
| FeMo70 | 65.0 – 75.0 | 1.5 | 0.1 | 0.05 | 0.1 | 0.5 |
| FeMo70Cu1 | 65.0 – 75.0 | 2 | 0.1 | 0.05 | 0.1 | 1 |
| FeMo70Cu1.5 | 65.0 – 75.0 | 2.5 | 0.2 | 0.1 | 0.1 | 1.5 |
| FeMo60 – A | 55.0 – 65.0 | 1 | 0.1 | 0.04 | 0.1 | 0.5 |
| FeMo60 – B | 55.0 – 65.0 | 1.5 | 0.1 | 0.05 | 0.1 | 0.5 |
| FeMo60 – C | 55.0 – 65.0 | 2 | 0.15 | 0.05 | 0.2 | 1 |
| FeMo60 | ≥60.0 | 2 | 0.1 | 0.05 | 0.15 | 0.5 |
| FeMo55 – A | ≥55.0 | 1 | 0.1 | 0.08 | 0.2 | 0.5 |
| FeMo55 – B | ≥55.0 | 1.5 | 0.15 | 0.1 | 0.25 | 1 |