Specs : according to ASTM B 365 -98 UNS R05200 & ASTM B 365 -98 UNS R05400.
Chemical composition :
            O                 0.0300 %max
            C                 0.0100 %max
            N                 0.0100 %max
            H                 0.0015 %max
            Fe               0.0100%max
            Ni                0.0100%max
            Si                0.0050 %max
            Mo               0.0200 %max
            W                0.0500 %max
            Nb               0.1000 %max
            Ta balance (typically 99.92%)
Physical & Mechanical property :
            Tensile strength 172 MPa min.
            Yield strength    103 MPa min.
            Elongation         25%min
Size available :
Diameter 1.50 up to 150mm x Length 1500mm max.

Typical Size :
1.5mm diameter x 1000mm long (0.0591" x 39.37"), theoretical weight=0.029 kg/pc;
2.0mm diameter x 1000mm long (0.0787" x 39.37"), theoretical weight=0.052 kg/pc;
3.0mm diameter x 1000mm long (0.1181" x 39.37"), theoretical weight=0.118 kg/pc;
4.0mm Diameter x 508mm Length(0.1575" x 20"),     average weight=0.1122 kg/pc; 
5.0mm Diameter x 60mm Length(0.1969" x 2.3622"), theoretical weight=0.0196 kg/pc;
5.0mm Diameter x 250mm Length (0.1969" x 9.8425"), theoretical weight=0.082 kg/pc;
5.0mm Diameter x 1000mm Length (0.1969" x 39.37"), theoretical weight=0.327 kg/pc;

6.0mm Diameter x 101mm Length (0.2362" x 4"),      theoretical weight=0.0476 kg/pc;
6.0mm Diameter x 300mm Length (0.2362" x 11.811"), theoretical weight=0.1413 kg/pc;
6.0mm Diameter x 1000mm Length (0.2362" x 39.37"), theoretical weight=0.471 kg/pc;
6.35mm Diameter x 300mm Length  (1/4" x 11.811"),  theoretical weight=0.1581 kg/pc; 
6.35mm Diameter x 508mm Length  (1/4" x 20"),        theoretical weight=0.2677 kg/pc; 
6.35mm Diameter x 635mm Length  (1/4" x 25"),        theoretical weight=0.3346 kg/pc;   
6.35mm Diameter x 914.4mm Length  (1/4" x 36"),     theoretical weight=0.4819 kg/pc;   
6.35mm Diameter x 1016mm Length  (1/4" x 40"),      theoretical weight=0.5354 kg/pc;

8.0mm Diameter x 60mm Length (0.315" x 2.3622"),   theoretical weight=0.0502 kg/pc;
8.0mm Diameter x 1000mm Length (0.315" x 39.37"), theoretical weight=0.837 kg/pc;
9.0mm Diameter x 1000mm Length (0.3543" x 39.37"),theoretical weight=1.059 kg/pc;
9.525mm Diameter x 200mm Length (3/8" x 7.874"),   theoretical weight=0.2372 kg/pc;
9.525mm diameter x 304.8mm long (5/8" x 1 ft),        theoretical weight=0.3615 kg/pc;
9.525mm Diameter x 558.80mm Length (3/8" x 22"),   theoretical weight=0.6627 kg/pc;
9.525mm Diameter x 609.60mm Length (3/8" x 24"),   theoretical weight=0.7230 kg/pc;
9.525mm Diameter x 711.20mm Length (3/8" x 28"),   theoretical weight=0.8435 kg/pc;
9.525mm Diameter x 1016mm Length (3/8" x 60"),      theoretical weight=1.205 kg/pc;
9.525mm Diameter x 1828.8mm Length (3/8" x 6feet), theoretical weight=2.169 kg/pc;
9.53mm Diameter x 1500mm long,                             theoretical weight=1.782 kg/pc;

10mm diameter x 30 mm long (0.3937" x 1.1811"),     theoretical weight=0.0392 kg/pc;
10mm diameter x 100mm length(0.3937" x 3.937"),    theoretical weight=0.1308 kg/pc;
10mm diameter x 150mm length(0.3937" x 5.9055"),  theoretical weight=0.1962 kg/pc;
10mm diameter x 300mm length(0.3937" x 11.811"),  theoretical weight=0.3924 kg/pc; 
10mm Diameter x 1000mm Length (0.3937" x 39.37"),theoretical weight=1.308 kg/pc;
11mm diameter x 1000mm long (0.4331" x 39.37"),    theoretical weight=1.582 kg/pc;
11.3mm diameter x 50mm long,                                theoretical weight=0.0835 kg/pc;
0.5-1 inches diameter by 1-2 feet long

12mm diameter x 150mm length(0.4724" x 5.9055"),  theoretical weight=0.2825 kg/pc;
12mm diameter x 1000mm length,                            theoretical weight=1.883 kg/pc;
12.7mm diameter x 100mm long(1/2" x 3.937"),        theoretical weight=0.2109 kg/pc;
12.7mm diameter x 1000mm long(1/2" x 39.37"),      theoretical weight=2.109 kg/pc;
13mm diameter x 1000mm long (0.5118" x 39.37"),   theoretical weight=2.21 kg/pc;
14 mm diameter x 500 mm length,                           theoretical weight=1.2815 kg/pc;
15 mm diameter x 100 mm length,                           theoretical weight=0.2942 kg/pc;
15 mm diameter x 500 mm length,                           theoretical weight=1.471 kg/pc;
15 mm diameter x 1000 mm length,                         theoretical weight=2.942 kg/pc;

16mm diameter x 200mm Long,                               theoretical weight=0.6696 kg/pc;
16mm diameter x 300mm Long (0.6299" x 11.811"),  theoretical weight= 1.0044 kg/pc;
16mm diameter x 1000mm Long (0.6299" x 11.811"),theoretical weight=3.348 kg/pc;
18mm diameter X 1800mm long,                             theoretical weight=7.6266 kg/pc; 
20mm diameter x 300mm long,                               theoretical weight=1.5693 kg/pc;
20mm diameter x 625mm long,                               theoretical weight=3.2693 kg/pc;
20mm diameter x 1000mm long,                             theoretical weight=5.231 kg/pc;

22.5mm diameter x 100mm long,                            theoretical weight=0.662 kg/pc;
23 mm diameter x 1000 mm Long,                          theoretical weight=6.918 kg/pc;
25mm diameter x 50mm length,                              theoretical weight=0.4087 kg/pc;
25mm diameter x 300mm length,                            theoretical weight=2.4519 kg/pc;
25mm diameter x 600mm length,                            theoretical weight=4.9038 kg/pc;
25mm diameter x 1000mm length,                          theoretical weight=8.173 kg/pc;
25.4mm diameter x 1000mm long(1" x 39.37"),        theoretical weight=8.437 kg/pc;
 
30mm Diameter x 150mmmm length,                      theoretical weight=1.7654 kg/pc;
32mm diameter x 625mm long,                              theoretical weight=7.3556 kg/pc;
32mm diameter x 1000mm long,                            theoretical weight=13.391 kg/pc;
35mm diameter x 80mm length (1-3/8" x 3-1/8"),    theoretical weight=1.282 kg/pc;
35 mm Diameter x 15 mm length (1.378" x 0.5906"),theoretical weight=0.2403 kg/pc;
35mm Diameter x 300mm Long,                             theoretical weight=4.81 kg/pc;
35 mm Diameter x 400mm length (1.378" x 15.748"), theoretical weight=6.41 kg/pc;

40mm Diameter x 500mm long,                              theoretical weight=10.46 kg/pc;
45mm Diameter x 50mm long (1.7717" x 1.9685"),   theoretical weight=1.324 kg/pc;
50mm diameter x 55mm length,                             theoretical weight=1.798 kg/pc;
50mm diameter x 75mm length,                             theoretical weight=2.4519 kg/pc;
50mm diameter x 100mm  length,                          theoretical weight=3.2692 kg/pc;
50mm diameter x 150mm   length,                         theoretical weight=4.91 kg/pc;
50mm diameter x 1000mm length,                         theoretical weight=32.692 kg/pc;

50.8mm diameter x 254mm (2" x 20"),                   theoretical weight=8.58 kg/pc;
50.8mm diameter x 304.8mm (2" x 12"),                theoretical weight=10.286 kg/pc;
52mm diameter x 50 mm long,                              theoretical weight=1.768 kg/pc;
52mm diameter x 67 mm long,                              theoretical weight=2.369 kg/pc;
52 mm dia x 12 mm thick,                                     theoretical weight=0.4243 kg/pc;
55mm diameter X 100mm length,                          theoretical weight=3.956 kg/pc;

60mm Diameter x 205mm Long(2.36"x8.07"),         theoretical weight=9.65 kg/pc;
60mm Diameter x 250mm Long,                            theoretical weight=11.77 kg/pc;
62mm diameter x 1000mm length,                         theoretical weight=50.268 kg/pc;
65mm diameter x 100mm length (2.5591" x 3.937"),theoretical weight=5.525 kg/pc;
65mm diameter x 1000mm length (2.5591" x 39.37"), theoretical weight=55.25 kg/pc;
70mm Diameter x 70mm Long,                              theoretical weight=4.485 kg/pc;
70mm Diameter x 110mm Long (2.75" x 4.33"),       theoretical weight=7.048 kg/pc;

75mm diameter x 6mm thickness,                          theoretical weight=0.4413 kg/pc;
75mm diameter x 11mm length,                             theoretical weight=0.809 kg/pc;
75mm diameter x 55mm length,                             theoretical weight=4.046 kg/pc;
80mm diameter x 100mm length,                           theoretical weight=8.3692 kg/pc;
80mm diameter x 110mm length,                           theoretical weight=9.206 kg/pc;
85mm diameter x 120mm long,                              theoretical weight=11.34 kg/pc;
90mm diameter x 5mm thick,                                 theoretical weight=0.5296 kg/pc;
90mm diameter x 500mm long,                              theoretical weight=52.96 kg/pc;

100mm diameter x 100mm length,                         theoretical weight=13.077 kg/pc;
135mm diameter x 95mm long,                             theoretical weight=22.64 kg/pc;
Application:  tantalum rods are usually machined tantalum machined parts, tantalum screws, tantaum nuts, high-temperature furnace, Capacitance gauges, argon ion sputtering of a cathode, tantalum cathode, tantalum rod target, tantalum rod implantations, etc., 
Typically, tantalum rod was used as a beam stop for the intense reflected beam;
Threaded tantalum rod was used to connect  ceramic standoffs to the thantalum disc.
making tantalum electrode used as electrochlorinator cell of chlorinator, which is for the disinfection of swimming pool, water and waste water treatment, etc.,

Trade name:  tantalum rod, tantalum rods, tantalum bar, tantalum bars, tantalum round bar, tantalum round bars, tantalum ingot, tantalum ingots, tantalum anodes, tantalum anode, tantalum electrode, tantalum electrodes, tantalum stick, tantalum sticks, tantalum blank, tantalum blanks, etc.,

Standard Specification ASTM B 365 -98 for Tantalum rod + Tantalum Alloy Rod + Tantalum Wire + Tantalum Alloy Wire.

This specification covers unalloyed and alloyed Tantalum rod + Tantalum Alloy Rod + Tantalum Wire + Tantalum Alloy Wire.
The materials covered by this specification are :
1. ASTM B 365 -98 UNS R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both.
2. ASTM B 365 -98 UNS R05400, unalloyed tantalum, powder-metallurgy consolidation.
3. ASTM B 365 -98 UNS R05255, tantalum alloy, 90% tantalum 10% tungsten, electron-beam furnace or vacuum-arc melt, or both.
4. ASTM B 365 -98 UNS R05252, tantalum alloy, 97.5% tantalum 2.5% tungsten, electron-beam furnace or vacuum-arc melt, or both.
5. ASTM B 365 -98 UNS R05240, tantalum alloy, 60% tantalum 40% columbium, electron-beam furnace or vacuum-arc melt, or both.
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Their raw materials conform the Standard Specification ASTM B 364 -96 for Tantalum and Tantalum Alloy Ingots
This specification covers unalloyed and alloyed tantalum ingots prepared by vacuum-arc melting, electron-beam melting, or powder-metallurgy consolidation to produce consolidated metal for processing to various mill shapes.
The materials covered by this specification are :
1. ASTM B 364 -96 UNS R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both.
2. ASTM B 364 -96 UNS R05400, unalloyed tantalum, powder-metallurgy consolidation.
3. ASTM B 364 -96 UNS R05255, tantalum alloy, 90% tantalum 10% tungsten, electron-beam furnace or vacuum-arc melt, or both.
4. ASTM B 364 -96 UNS R05252, tantalum alloy, 97.5% tantalum 2.5% tungsten, electron-beam furnace or vacuum-arc melt, or both.
5. ASTM B 364 -96 UNS R05240, tantalum alloy, 60% tantalum 40% columbium, electron-beam furnace or vacuum-arc melt, or both.
The ingot metal for Type R05200 (unalloyed tantalum), for Type R05255 (90% tantalum 10% tungsten alloy), Type R05252 (97.5% tantalum 2.5% tungsten alloy), and Type R05240 (60% tantalum 40% columbium) may be vacuum-arc melted, electron-beam furnace melted, or a combination of these two methods. The metal for Type R05400 is defined as powder-metallurgy consolidation unalloyed tantalum.