Complaint
| grade | chemical composition %, max | |||||||||||
| Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | Ta | |
Ta1 Ta2 | 0.005 0.005 | 0.005 0.005 | 0.005 0.005 | 0.005 0.005 | 0.002 0.002 | 0.002 0.002 | 0.005 0.1 | 0.02 0.03 | 0.004 0.1 | 0.002 0.002 | 0.005 0.01 | remain remain |
Dimension Tolerance
diameter mm | dia tolerance, mm | length, mm | length tolerance, mm | ||
| forging | drawing | machining | |||
3.0-4.5 4.5-6.5 6.5-10 10-16 16-18 18-25 25-40 40-50 50-65 | - ±0.15 ±0.15 ±0.15 ±0.15 - - - - | 0.05 - - - - - - - - | - - - - - ±0.5 ±0.5 ±0.6 ±0.7 | 500-1500 500-1500 400-1500 30-1200 200-1500 - - - - | ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 |
Mechanical Property
| tantalum bar ( dia 3.18mm~63.5mm ) | |||
| grade | ultimate tensile strength, min,pound / inch2 ( MPa ) | yield strength, min, pound / inch2 (MPa) | elongation, min, % 1 inch (25.4mm), gauge length |
R05400 R05200 R05252 R05255 R05240 | 25000 (172) 40000 (276) 70000 (482) 40000 (276) | 15000 (103) 28000 (193) 55000 (379) 28000 (193) | 25 20 20 20 |
