RO5200 RO5400 Ta1 Ta2 Tantalum Plate Sheet ASTM B 708
1. Specification Of Tantalum Plate Sheet ASTM B 708:
Tantalum sheet
Purity:min 99.95%
Grade:RO5200,Ta1,RO5400, RO5252(Ta-2.5W),RO5255(Ta-10W)
Thickness 0.03~50mm,Width ≤ 600mm,
Length <2500mm
Standard:ASTM B708
Surface: bright
Condition: annealed
Name | Thickness | Width | Length |
Foil | 0.03~0.09mm | 30-200mm | >200mm |
Sheet | 0.1-2.0mm | 30- 600mm | 30-1000mm |
Plate | 2.0-50mm | 30- 600mm | <2500mm |
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) | 28000 (193) | 25 |
Grade | Main elements | Impurity content less than % | |||||||||||
Ta | Nb | Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | |
Ta1 | Remain | —— | 0.005 | 0.005 | 0.002 | 0.01 | 0.01 | 0.002 | 0.04 | 0.02 | 0.01 | 0.0015 | 0.01 |
Ta2 | Remain | —— | 0.03 | 0.02 | 0.005 | 0.04 | 0.03 | 0.005 | 0.1 | 0.03 | 0.01 | 0.0015 | 0.01 |
TaNb3 | Remain | <3.5 | 0.03 | 0.03 | 0.005 | 0.04 | 0.03 | 0.005 | —— | 0.03 | 0.01 | 0.0015 | 0.01 |
TaNb20 | Remain | 17.0~23.0 | 0.03 | 0.03 | 0.005 | 0.04 | 0.03 | 0.005 | —— | 0.03 | 0.01 | 0.0015 | 0.01 |
Ta2.5W | Remain | 0.005 | 0.005 | 0.002 | 3 | 0.01 | 0.002 | 0.04 | 0.02 | 0.01 | 0.0015 | 0.01 | |
Ta10W | Remain | 0.005 | 0.005 | 0.002 | 11 | 0.01 | 0.002 | 0.04 | 0.02 | 0.01 | 0.0015 | 0.01 |
2.Feature Of Tantalum Plate Sheet ASTM B 708:
* Good ductility
* Good plasticity
* Excellent acid-resistance
* High melting point, high boiling point
* Very small coefficients of thermal expansion
* Good capability of absorbing and releasing hydrogen
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