Purity : 99.95%min or 99.99%min conformity with ASTM B 708 98
Size :
Width (mm) | Length (mm) | Thickness (mm) | |
Foil | 0.03-0.07 | 30-200 | >50 |
Sheet | 0.07-0.5 | 30- 700 | 30-2000 |
Board | 0.5-10 | 50-1000 | 50-3000 |
Purity | >=99.95% or 99.99% |
Chemical Alloyion
Element | R05200 (%,Max) | R05400 (%,Max) |
C | 0.01 | 0.01 |
O | 0.015 | 0.03 |
N | 0.01 | 0.01 |
H | 0.0015 | 0.0015 |
Fe | 0.01 | 0.01 |
Mo | 0.02 | 0.02 |
Nb | 0.1 | 0.1 |
Ni | 0.01 | 0.01 |
Si | 0.005 | 0.005 |
Ti | 0.01 | 0.01 |
W | 0.05 | 0.05 |
Mechanical requirements (annealed condition)
Grade and size | Annealed | ||
Tensile strength min, psi (MPa) | Yield strength min,psi (MPa)(2%) | Elongation min, % (1 inch gage length) | |
Sheet, foil. and board (RO5200, RO5400) Thickness<0.060"(1.524mm) Thickness≥0.060"(1.524mm) | 30000 (207) | 20000 (138) | 20 |
25000 (172) | 15000 (103) | 30 | |
Ta-10W (RO5255) Sheet, foil. and board | 70000 (482) | 60000 (414) | 15 |
70000 (482) | 55000 (379) | 20 | |
Ta-2.5W(RO5252) Thickness<0.125" (3.175mm) Thickness≥0.125" (3.175mm) | 40000 (276) | 30000 (207) | 20 |
40000 (276) | 22000 (152) | 25 | |
Ta-40Nb (RO5240) Thickness<0.060"(1.524mm) | 40000 (276) | 20000 (138) | 25 |
Thickness>0.060"(1.524mm) | 35000 (241) | 15000 (103) | 25 |
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