Product Introduction
Specifications
Tantalum wire,Tantalum- tungsten alloy wire
Material: RO5200, RO5400, RO5252(Ta2.5W), RO5255(Ta10W)
Available size:Dia0.25~4mm
Tantalum wire Tantalum- tungsten alloy wire
Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)
Available size: Dia0.25-4mm
Standard: As per ASTM B 365-98
Table 1: Chemical composition:
|
Designation |
Chief component |
Impurities max(%) |
||||||||||
|
Ta |
Fe |
Si |
Ni |
W |
Mo |
Ti |
Nb |
O |
C |
H |
N |
|
|
Ta1 |
Remainder |
0.004 |
0.003 |
0.002 |
0.004 |
0.004 |
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
|
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.
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 |
Tantalum wire are used for the production of coiled incandescent lamp filaments, cathode and support structures for power tubes, heating elements for high temperature furnaces and evaporation sources in metallizing processes. Thicker wire sizes, straightened, finish-ground and cut into rod pieces are widely used for glass-to-metal seal lead parts in the lighting and electronic industries.
Our company can providing customized products according to drawings provided by customers
