1.Material: RO4200-1, RO4210-2
2.Size: 4~100mm
3.Standard: As per ASTM B392-98
4.Purity: >=99.9% or 99.95%
5. Grade: Nb1,Nb2
6 Characteristic:
Melting Point: 2468°C
Boiling Point :4742°C
Density: 8.57g/cm3
7. Certificate: ISO9001
8. Product Feature: High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion..
9.Application:widely used for steel, ceramics, electronics, nuclear energy industries and superconductor technology.
Chemical Element (weight %, max.) |
UNS | Type | C | O | N | H | Ta | Fe | Ti | W | Mo | Si | Ni | Zr | Nb |
R04210 | Pure | 0.004 | 0.015 | 0.003 | 0.0015 | 0.05 | 0.004 | 0.002 | 0.005 | 0.005 | 0.004 | 0.002 | / | Bal. |
R04261 | Nb-Zr | 0.004 | 0.015 | 0.003 | 0.0015 | 0.05 | 0.004 | 0.002 | 0.005 | 0.005 | 0.004 | 0.002 | 1.00 | Bal. |
/ | Nb-Zr | 0.004 | 0.015 | 0.003 | 0.0015 | 0.05 | 0.004 | 0.002 | 0.005 | 0.005 | 0.004 | 0.002 | 10.0 | Bal. |
Table.1 Chemical composition:
Chemistry % |
Designation | Chief component | Impurities maxmium |
Nb | Fe | Si | Ni | W | Mo | Ti | Ta | O | C | H | N |
Nb1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.004 | 0.002 | 0.07 | 0.015 | 0.004 | 0.0015 | 0.002 |
Nb2 | Remainder | 0.02 | 0.02 | 0.005 | 0.02 | 0.02 | 0.005 | 0.15 | 0.03 | 0.01 | 0.0015 | 0.01 |
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Table 2. Mechanical requirements (annealed condition)
Grade | Tensile strength δbpsi (MPa), ≥ | Yield strength δ0.2, psi (MPa),≥ | Elongation in 1"/2" gage length, %, ≥ |
RO4200-1 RO4210-2 | 18000 (125) | 12000 (85) | 25 |
Customized are welcome, and please feel free to contact us for more information. Our motto is to provide you the best product and service.
Hengxin metal is specialized in supplying high purity tantalum niobium zirconium titanium and other refractory metal and their semi-finished products such as plate, sheet, rod, tube, wire, fasteners, crucible, sputtering target, etc. for chemical, high temperature, electronics and other industy.
Pure metal: Niobium (99.9%, 99.95%), Tantalum (99.9%, 99.95%)
Alloy: Nb-1%Zr, Nb-10%Zr, Nb-47%Ti, Ta-2.5%W, Ta-10%W
Shape: rod, bar, plate, sheet, foil, tube, wire, crucible, boat, fastener, sputtering target, customer-design shape
Standards: ASTM B392, 393, 394, ASTM B708, 365, 521...
Our Advantage
1. Our strengths over other suppliers.
2. Reliable quality on the base of the same price.
3. Competitive price
4. Professional service to cut much purchasing costs down..
Special requirements to be agreed on by the supplier and buyer of negotiation
welcome you arrive on any time and we are
willing to become long-term partners!
