| Tantalum Material Grade | Production Method | Diameter d(mm) | Tolerance (mm) | Length(mm) | Length Tolerance(mm) | ||
| Forged | Rolled | Ground or Machined | |||||
| Ta1Ta2FTa1 FTa2 R05200 R05400 R05255(Ta10W) R05252(Ta2.5W) Ta7.5W | Ground, Machined, Cold Rolled, Cold Swaged, Forged | 3.0～4.5 | ±0.05 | ±0.05 | — | 500～1500 | ±5 |
| ＞4.5～6.5 | ±0.10 | ±0.10 | — | 500～1500 | ±5 | ||
| ＞6.5～10.0 | ±0.15 | ±0.15 | ±0.15 | 400～1500 | ±5 | ||
| ＞10～16 | ±1.5 | ±0.20 | ±0.2 | 300～1500 | ±5 | ||
| ＞16～18 | ±2.0 | — | ±0.2 | 200～1500 | ±20 | ||
| ＞18～25 | ±2.5 | — | ±0.3 | 200～1500 | ±20 | ||
| ＞25～40 | ±3.0 | — | ±0.4 | 150～1500 | ±20 | ||
| ＞40～50 | ±3.5 | — | ±0.5 | 100～1500 | ±20 | ||
| ＞50～65 | ±5.0 | — | ±0.6 | 100～1500 | ±20 | ||
| ＞65～200 | ±5.0 | — | ±0.8 | 100～1500 | ±20 | ||
