Our company aims to operating faithfully, serving to all of our customers , and working in new technology and new machine constantly for CE Certificate Astm B365 Ta1 Tantalum Round Bars, We’re glad that we have been steadily increasing with the lively and long-term aid of our satisfied buyers!
Our company aims to operating faithfully, serving to all of our customers , and working in new technology and new machine constantly for Astm B365 Ta1 Bar, Pure Tantalum Bar, Round Bar Tantalum Round Bars, We have been confident that we’re able to provide you with opportunities and is going to be a valuable business partner of you. We look forward to working with you soon. Learn more about the types of items that we work with or contact us now directly with your inquiries. You are welcome to contact us anytime!
Chemical composition:
| Main and minor components | Min.content(%) | ASTM B365 |
| Ta | 99.95 | balance |
| Impurities | Max.values (μg/g) | Max.values (μg/g) |
| Fe | 100 | 100 |
| Mo | 100 | 200 |
| Nb | 400 | 1000 |
| Ni | 50 | 100 |
| Si | 50 | 50 |
| Ti | 50 | 100 |
| W | 100 | 500 |
| C | 30 | 200 |
| H | 15 | 15 |
| N | 50 | 100 |
| O | 100 | 250 |
| Cd | 10 | - |
| Hg | 1 | - |
| Pb | 10 | - |
Diameter and tolerance
| Diameter (mm) | Diameter tolerance (mm) |
| Ground | |
| 3.00-15.9 | ±0.05 |
| 16.0-24.9 | ±0.10 |
| 25.0-34.9 | ±0.25 |
| 35.0-39.9 | ±0.40 |
| 40.0-50.0 | ±0.80 |
| Cleaned | |
| 3.00-4.74 | ±0.076 |
| 4.75-9.51 | ±0.102 |
| 9.52-12.69 | ±0.127 |
| 12.70-15.87 | ±0.178 |
| 15.88-19.04 | ±0.203 |
| 19.05-25.39 | ±0.254 |
| 25.40-38.09 | ±0.381 |
| 38.10-50.79 | ±0.508 |
| 50.80-63.49 | ±0.762 |
| 63.50-120.0 | ±1.50 |
| Turned | |
| 30.0-49.9 | ±0.30 |
| 50.0-120.0 | ±0.40 |
Length and straightness:
| Diameter (mm) | Production length (mm) | Stiraightness/Meter (mm) | |
| Cleaned | Ground/turned | ||
| 3.00-9.90 | ＞500 | ＜2.5 | ＜2.0 |
| 10.0-120.0 | ＞300 | ＜2.5 | ＜1.5 |
Length tolerance:
| Nominal length (mm) | 6-30 | 30-120 | 120-400 | 400-1000 | 1000-2000 | ＞2000 |
| Length tolerance(mm) | ±1.0 | ±1.5 | ±2.5 | ±4.0 | ±6.0 | ±8.0 |
Density: ≥16.6g/cm³
Nondestructive testing: For diameters＞15.00 mm:100% ultrasonic testing; For diameters of 0.50-50.0mm: Eddy curent tests on rods with ground surface.
| Diameter(mm) | Tensile strength(MPa) | 0.2% Yield Strength (MPa) | Elongation(%) |
| 3.00-3.19 | ≥207 | - | ≥20 |
| 3.20-63.5 | ≥172 | ≥103 | ≥25 |
Surface condition:
| Surface | Pickled | Ground | Turned |
| φ3.0-165.0mm | φ3.0-50.00mm | φ≥30.00mm | |
| Roughness | Diameter (mm) | Ra (μm) Ground | Ra (μm) Turned |
| 3.0-50.0 | ≤1.20 | - | |
| ≥30.0 | - | ≤3.2 |