Customizable pure niobium alloy bar manufacturer - Zhenan
The pure nb alloy bar we produce are mainly cold-processed and annealed bars, and the surface should be free of cracks, folds, pores, metal and non-metal inclusions, heavy skin, residual lubricants, oxides and other dirt.
Related introduction of pure niobium bar
Product name: Niobium rod
Implementation standard: ASTM B392-98
Grade: RO4200-1, RO4210-2
Purity: >99.95%
Specifications: p3-p120mm
State: Annealed or hardened
Appearance: The surface of cold-processed and annealed niobium rods should be free of cracks, folds, pores, metal and non-metallic inclusions, heavy skin, residual lubricants, oxides and other dirt. Technology: The surface of hot-processed niobium rods should be free of cracks, folds, heavy skin and other defects that affect subsequent processing. The surface of the bar is allowed to have grooves, pits, scratches and marks with a depth not exceeding half of the diameter tolerance.
Detailed mechanical properties of Niobium Square Bar products
The mechanical properties of Nb Square Bar are as follows:
Tensile strength: The minimum tensile strength of Niobium alloy Square Bar is 125 MPa.
Yield strength: The minimum yield strength of niobium rods is 85 MPa.
Elongation: The minimum elongation of Nb alloy Square Bar is 25%.
These mechanical property data are applicable to niobium rods with grades R04200 and R04210, with purities of ≥99.95% and 99.99% respectively, in accordance with ASTM B392 standard.
In addition, the density of niobium rods is 8.57 g/cm³, the size range is 3.0~95mm in diameter, and the length can be customized according to needs. The states of niobium rods include hard, semi-hard and soft states, which are suitable for different application scenarios.
Tolerance of nb alloy bar (mm)
| Diameter | Diameter tolerance | Length tolerance |
| 3～4.5 | 0.05 | ±2 |
| 4.5～6.5 | 0.05 | ±2 |
| 6.5～10.0 | 0.10 | ±2 |
| 10.0～16.0 | 0.15 | ±2 |
| 16.0～18.0 | 0.15 | ±2 |
| 18.0～25.0 | 0.30 | ±2 |
| 25.0～40.0 | 0.50 | ±2 |
| 40.0～50.0 | 0.60 | ±2 |
| 50.0～65.0 | 0.70 | ±2 |
| 65.0～95.0 | 1.00 | ±2 |
Zhen'an's advantages
Reliable production team
Scientific and rigorous quality management
Innovation, learning, mutual trust
Sincerely provide customers with good products and services.
Niobium Rod Product Picture Display
We look forward to cooperating with you, if you have any questions or needs about our products and services, please feel free to contact us:sales@zanewmetal.com.