1. Specification: RO4200-1,RO4210-2
2. DiameterSize:Φ0.3mm~Φ100mm;
3. Standard:ASTM B 392 -18
4. Chemical Composition
Chemical Compositions
| Content% | ||||||||||||
| Niobium Grade | Main Compositions | Other Elements Max. | ||||||||||
| Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N | |
| Nb1 | Balance | 0.004 | 0.004 | 0.002 | 0.005 | 0.005 | 0.002 | 0.05 | 0.012 | 0.0035 | 0.0012 | 0.003 | 
| Nb2 | Balance | 0.01 | 0.01 | 0.005 | 0.02 | 0.01 | 0.004 | 0.07 | 0.015 | 0.0050 | 0.0015 | 0.008 | 
| Niobium Grade | Rm Tensile Strength Min. Lb/inch2(MPa) | Yield Strength Min. Lb/inch2(MPa) | Elongation % | 
| Rod and Bar,Diameter0.125inch(3.18mm) to2.5inch(63.5mm) | |||
| RO4200-1 | 18000(125) | 12000(85) | 25 | 
| RO4210-2 | 18000(125) | 12000(85) | 25 | 
| Wire,Diameter0.012inch(0.3048mm)to0.124inch(3.15mm) | |||
| 1 and2 Type | 18000(125) | ...... | 20 | 
| 3 and4Type | 28000(195) | ...... | 15 | 
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