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Tantalum rods Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W) Available size: Dia3~120mm Standard:ASTM B 365-98
Tantalum rods Tantalum- tungsten alloy rodsMaterial: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)
Available size: Dia3-120mmStandard: As per ASTM B 365-98
Table 1:Chemical composition:
Chemistry % | |||||||||||||
Designation | Chief component | Impurities maxmium | |||||||||||
Ta | Nb | Fe | Si | Ni | W | Mo | Ti | Nb | O | C | H | N | |
Ta1 | Remainder | 0.004 | 0.003 | 0.002 | 0.004 | 0.006 | 0.002 | 0.03 | 0.015 | 0.004 | 0.0015 | 0.002 | |
Ta2 | Remainder | 0.01 | 0.01 | 0.005 | 0.02 | 0.02 | 0.005 | 0.08 | 0.02 | 0.01 | 0.0015 | 0.01 | |
Table2. Permissible variations in diameter for rods and wires
Diameter, inch (mm) | Tolerance <, +/-inch (mm) |
0.010~0.020 excl (0.254~0.508) | < 0.0005 (0.013) |
0.020~0.030 excl (0.508~0.762) | < 0.00075 (0.019) |
0.030~0.060 excl (0.762~1.524) | < 0.001 (0.025) |
0.060~0.090 excl (1.524~2.286) | < 0.0015 ( 0.038) |
0.090~0.125 excl (2.286~3.175) | < 0.002 (0.051) |
0.125~0.187 excl (3.175~4.750) | < 0.003 (0.076) |
0.187~0.375 excl (4.750~9.525) | < 0.004 (0.102) |
0.375~0.500 excl (9.525~12.70) | < 0.005 (0.127) |
0.500~0.625 excl (12.70~15.88) | < 0.007 (0.178) |
0.625~0.750 excl (15.88~19.05) | < 0.008 (0.203) |
0.750~1.000 excl (19.05~25.40) | < 0.010 (0.254) |
1.000~1.500 excl (25.40~38.10) | < 0.015 (0.381) |
1.500~2.000 excl (38.10~50.80) | < 0.020 (0.508) |
2.000~2.500 excl (50.80~63.50) | < 0.030 (0.762) |
Table3. Mechanical requirements (annealed condition)
Rod, Diameter 0.125" (3.18mm)~2.5" (63.5mm) | |||||
Grade | Tensile strength, psi (MPa), ≥ | Yield strength, psi (MPa), ≥
| Elongation in 1 inch gage length, %, ≥ | ||
RO5200/RO5400 | 25000 (172) | 15000 (103) | 25 | ||
RO5252 | 40000 (276) | 28000 (193) | 20 | ||
RO5255 | 70000 (482) | 55000 (379) | 20 | ||
RO5240 | 35000 (244) | 15000 (103) | 25 | ||
Wire, Diameter, inch (mm) | |||||
Grade | Diameter,inch (mm) | tensile strength,psi (MPa),≥ | Elongation, %, ≥
| ||
RO5200/RO5400 | 0.010(0.254)~0.0149(0.379) | 35000 (241) | 10 | ||
0.015(0.381)~0.0249(0.633) | 35000 (241) | 15 | |||
0.025(0.635)~0.124(3.14) | 30000 (207) | 20 | |||
RO5252 | 0.010(0.254)~0.0149(0.379) | 40000 (276) | 5 | ||
0.015(0.381)~0.0249(0.633) | 40000 (276) | 10 | |||
0.025(0.635)~0.124(3.14) | 40000 (276) | 15 | |||
RO5255 | 0.010(0.254)~0.0149(0.379) | 70000 (482) | 5 | ||
0.015(0.381)~0.0249(0.633) | 70000 (482) | 10 | |||
0.025(0.635)~0.124(3.14) | 70000 (482) | 15 | |||
RO5240 | 0.010(0.254)~0.0149(0.379) | 35000 (244) | 10 | ||
0.015(0.381)~0.0249(0.633) | 35000 (244) | 15 | |||
0.025(0.635)~0.124(3.14) | 35000 (244) | 20 | |||
Note: 10" (254mm) gage length to 0.050"(1.27mm) diameter and 1" (25.4mm) or 2"(50.8mm) gage length over 0.050"(1.27mm) diameter.