1. Chemical Composition

Note: Special grades such as Low Aluminum (Al ≤ 1.0%) and Low Silicon (Si ≤ 1.0%) are available upon request.

2. Physical Specifications

3. Key Characteristics & Applications

• Characteristics:

  • Grain Refinement: Forms carbides and nitrides that strongly inhibit austenite grain growth, refining the final microstructure of steel - its core function.

  • Precipitation Strengthening: Fine Nb(C, N) precipitates provide significant strengthening.

  • Toughness Improvement: Enhances low-temperature toughness and impact resistance concurrently with strength increase via grain refinement.

  • Weldability Enhancement: Refines grains in the heat-affected zone (HAZ), preventing coarsening and improving the strength and toughness of welded joints.

• Applications:

  • High-Strength Low-Alloy Steel (HSLA): Primary application for products like pipeline steel, structural steel, and automotive beam steel.

  • Stainless Steel: Stabilizes carbon in austenitic stainless steels to prevent intergranular corrosion; improves properties in duplex stainless steels.

  • Engineering Machinery Steel: Enhances strength and durability in wear-resistant and high-strength structural steels.

  • Steel Castings: Improves strength and toughness in castings.

4. Packaging & Storage

• Packaging: Typically supplied in moisture-proof woven bags or jumbo bags with inner plastic liners. Steel drums are available upon request.

• Storage: Store in a dry, ventilated, and clean warehouse. Protect from moisture, oxidation, and contamination.

5. Health & Safety

• Ferroniobium is a stable solid at room temperature and poses no specific health hazards.

• Standard personal protective equipment (PPE) such as gloves and safety glasses should be worn during handling to prevent injury from sharp edges.