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Niobium Rod
Standard: ASTM B394-98
Grade: RO4200-1, RO4210-2
Purity: Nb >99.9% or 99.95%
Niobium Rod Applications
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Electronic industry, chemistry, electrical, and pharmaceutical industry.
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For steel, ceramics, electronics, nuclear energy industries, and superconductor technology.
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For superconductors, melted cast ingots, and alloying agents.
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Widely used in manufacturing various kinds of alloy steel, high-temperature alloy, optical glass, cutting tool, electronics, superconducting materials, and other industries.
Niobium Rod Specifications
We can supply seamless or welding niobium rods with good quality. Below are most of the standard sizes. If you do not find the niobium rod’s required size, please feel free to contact us.
Sizes/Tolerance(mm.max)
| Diameter | Diameter Tolerance | Length | Tolerance | ||
| Rotary Forging Bar | Pull Rod | Car Rod | |||
| 2.0-4.0 | – | ±0.5 | – | 500-3000 | ±0.2 |
| ≥4.0-8.0 | ±0.06 | – | – | 50-3000 | ±0.2 |
| ≥8.0-12.0 | ±0.08 | – | – | 50-3000 | ±0.2 |
| ≥12.0-36 | ±0.1 | – | – | 50-1600 | ±0.2 |
| ≥36-50 | – | – | ±0.5 | 50-1400 | ±0.2 |
| ≥50-65 | – | – | ±0.5 | 50-1400 | ±0.2 |
Special requirements to be agreed upon by the supplier and buyer
Chemical Composition of Niobium Rod
| Grade | Chemical Composition, Max | ||||||||||||
| Fe | Si | Mo | W | Ti | Cr | Ta | Ni | O | C | H | N | Nb | |
| Nb1 | 0.005 | 0.005 | 0.01 | 0.001 | 0.002 | 0.002 | 0.1 | 0.005 | 0.015 | 0.01 | 0.001 | 0.01 | Balance |
| Nb2 | 0.01 | 0.005 | 0.01 | 0.02 | 0.005 | 0.005 | 0.25 | 0.005 | 0.025 | 0.03 | 0.005 | 0.025 | Balance |
Niobium Rod Properties
| Grade | Tensile Strength δbpsi (MPa) ≥ | Yield Strength δ0.2, psi (MPa) ≥ | Elongation in 1″/2″ Gage Length, ％, >=0.010 | Elongation in 1″/2″ Gage Length, ％, <0.010 |
| RO4200-1 | 18000 (125) | 12000 (85) | 25 | 20 |
| RO4210-2 |
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