Material:tantalum disk, tantalum disc, tantalum ingot
Specs : according to ASTM B365 -98 R05400, R05200.
Temper condition :  annealed
Process               :  powder-metallurgy consolidation for UNS R05400;
                               electron-beam furnace melt for UNS R05200;
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 30 up to 150mm x Length 1500mm max. 

Typical Size :
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;
203.2mm diameter x 171.45mm thickness (8" X 6.75"), theoretical weight=92.57 kg/pc;
203.2mm diameter x 196.85mm thickness (8" X 7.75"), theoretical weight=106.29 kg/pc;

Trade names: tantalium disk, tantalum disc, tantalum wafer, tantalum alloy disk, tantalum alloy disc, tantalum alloy wafer, tantalum discs, tantalum disks, tantalum target, tantalum targets, tantalum sputtering target, tantalum sputtering targets, tantalum tungsten alloy target, tantalum tungsten alloy targets, tantalum round target, tantalum round targets, tantalum wafers, tantalum alloy wafers, tantalum tungsten alloy wafers, tantalum alloy target, tantalum alloy targets, tantalum metal target, tantalum metal targets, tantal target, tantale sputtering target.

Standard Specification ASTM B 708 -05 for Tantalum Ribbon, Tantalum Alloy Ribbon, Tantalum Strip, Tantalum Alloy Strip, Tantalum Foil, Tantalum Alloy Foil, Tantalum Sheet, Tantalum Alloy Sheet, Tantalum Plate, Tantalum Alloy Plate.
This specification covers unalloyed and alloyed Tantalum Ribbon, Tantalum Alloy Ribbon, Tantalum Strip, Tantalum Alloy Strip, Tantalum Foil, Tantalum Alloy Foil, Tantalum Sheet, Tantalum Alloy Sheet, Tantalum Plate, Tantalum Alloy Plate as follows:
1. ASTM B 708 -05 UNS R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both.
2. ASTM B 708 -05 UNS R05400, unalloyed tantalum, powder-metallurgy consolidation.
3. ASTM B 708 -05 UNS R05255, tantalum alloy, 90% tantalum 10% tungsten, electron-beam furnace or vacuum-arc melt, or both.
4. ASTM B 708 -05 UNS R05252, tantalum alloy, 97.5% tantalum 2.5% tungsten, electron-beam furnace or vacuum-arc melt, or both.
5. ASTM B 708 -05 UNS R05240, tantalum alloy, 60% tantalum 40% columbium, electron-beam furnace or vacuum-arc melt.