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1.Tantalum board
2brand: R05200, R05400
3. Purity: ≥99.95%4. Specifications: Processed according to customer requirements
5. Process: cold rolling, pickling, shearing.
6. Technical conditions: Conform to GB3269-83(Tantalum and tantalum alloy sheet, strip and Foil),
Tantalum and tantalum alloy foilASTM B708-92(Tantalum and Tantalum Alloy Foil, Thin sheet, Strip and Foil)
7. Application: It is used to make heating parts, heat insulation parts and charging vessels for vacuum blast furnaces. It can be
used to make cookers, heaters, coolers, various utensils and devices in chemical industry, and is widely used in aviation,
aerospace industry, medical instruments and other fields.
Specification
| Thickness | Permissible thickness deviation Ⅰ | Permissible thickness deviation Ⅱ | Width | Permissible width deviation | Length | Allowable length deviation |
| 0.025～0.07 | ±0.005 | ±0.006 | 70～150 | ±2.0 | ≥1000 | — |
| >0.07～0.09 | ±0.006 | ±0.008 | 70～150 | ±2.0 | ≥1000 | — |
| 0.1～0.20 | ±0.015 | ±0.02 | 50～300 | ±2.0 | 100～2000 | ±3.0 |
| >0.2～0.30 | ±0.02 | ±0.03 | 50～300 | ±2.0 | 100～2000 | ±3.0 |
| >0.30～0.50 | ±0.03 | ±0.04 | 50～500 | ±2.0 | 100～2000 | ±3.0 |
| >0.50～0.80 | ±0.04 | ±0.06 | 50～500 | ±2.0 | 50～1200 | ±3.0 |
| >0.80～1.0 | ±0.06 | ±0.08 | 50～500 | ±2.0 | 50～1200 | ±3.0 |
| >1.0～1.5 | ±0.08 | ±0.10 | 50～500 | ±3.0 | 50～1200 | ±4.0 |
| >1.5～2.0 | ±0.12 | ±0.14 | 50～500 | ±3.0 | 50～1200 | ±4.0 |
| >2.0～3.0 | ±0.16 | ±0.18 | 50～500 | ±5.0 | 50～1200 | ±5.0 |
| >3.0～4.0 | ±0.18 | ±0.20 | 50～500 | ±5.0 | 50～1200 | ±5.0 |
| >4.0～6.0 | ±0.12 | ±0.24 | 50～500 | ±5.0 | 50～1200 | ±5.0 |
| >6.0～30.0 | ±0.24 | ±0.50 | 50～500 | ±5 | 50～1200 | ±5.0 |
Tantalum sheet mechnical properties:
| Grade(UNS) | Annealed | ||
| Tensile strength min, psi (MPa) | Yield strength min,psi (MPa)(2%) | Elongation min, % (1 inch gage length) | |
| Pure Ta (RO5200, RO5400) | 30000 (207) | 20000 (138) | 20 |
| Ta-10W(RO5255) | 70000 (482) | 60000 (414) | 15 |
| Ta-2.5W (RO5252) | 40000 (276) | 30000 (207) | 20 |
| Ta-40Nb (RO5240) | 35000 (241) | 20000 (138) | 25 |
| Chemistry% | |||||||||||||
| Designation | Chief Component | Impurities Maximum | |||||||||||
| Ta | Nb | Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | |
| Ta1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.006 | 0.002 | 0.03 | 0.01 | 0.004 | 0.0015 | 0.002 | |
| Ta2 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.08 | 0.015 | 0.01 | 0.0015 | 0.01 | |
| TaNb3 | Remainder | <3.5 | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.015 | 0.01 | 0.0015 | 0.01 | |
| TaNb20 | Remainder | 17.0-23.0 | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.015 | 0.01 | 0.0015 | 0.01 | |
| Ta2.5W | Remainder | 0.005 | 0.003 | 0.002 | 3 | 0.006 | 0.002 | 0.04 | 0.015 | 0.005 | 0.0015 | 0.006 | |
| Ta10W | Remainder | 0.005 | 0.003 | 0.002 | 11 | 0.006 | 0.002 | 0.04 | 0.015 | 0.005 | 0.0015 | 0.006 | |
| Special require of tantalum wire to be agreed on by the supplier and buyer of negotiations. | |||||||||||||
Tantalum applications:
1) In devices for producing various inorganic acids , tantalum instead of stainless steel, tantalum devices’ life is stainless steel devices’ life many times.
2) in the chemical, electronic, electrical and other industries, tantalum instead of the precious metals platinum, costs is greatly reduced.
3) Tantalum is an important alloy element in smelting Super steel, corrosion resistant steel and heat-resistant steel.
4) Tantalum is used in modern medicine. Tantalum has no harm to the human body, and human muscle can grow on tantalum.
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