Product Main

Specifications

Tantalum rods   Tantalum- tungsten alloy rods
Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)
Available size:  ¢4~¢120mm
Standard: As per ASTM B 365-98 
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
 
Tantalum /Tantalum rod / Tantalum bar    
1, Feature:high melting point, low vapor pressure, good cold process ability, excellent chemical stability, good resistance to corrosion, high dielectric constant, in surface oxide film. 
2, Application: Tantalum bar for metallurgical purposes
mainly used for manufacturing Super alloys and electron-beam melting
3, Chemical composition:
           Chemistry                                                       %
Designation
Chief component
Impurities  maximum
Ta
Nb
Fe
Si
Ni
W
Mo
Ti
Nb
O
C
H
N
Ta1
Remainder
 300
0.004
0.003
0.002
0.004
0.004
0.002
0.03
0.015
0.004
0.0015
0.002
Ta2
Remainder
 800
0.01
0.01
0.005
0.02
0.02
0.005
0.08
0.02
0.01
0.0015
0.01 

Packaging & Delivery
Packaging Detail: vacuum or plywood packaging
Delivery Detail: 3~30 days 



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.