• One of the worldwide recognized producers of Uranium, Beryllium, Tantalum and Niobium products. The company is incorporated into the National Atomic Company “Kazatomprom” To the future with us!
  • Uranium division of “Ulba Metallurgical Plant” JSC is unique and one of the world largest producers of nuclear fuel for nuclear power plants. It has great work experience in nuclear sector To the future with us!
  • Beryllium production of the "Ulba Metallurgical Plant" JSC is one of the three enterprises in the world with full production cycle from ore concentrate processing to finished products output with the rated quality set-ups. To the future with us!
  • Tantalum production of "Ulba Metallurgical Plant" JSC is a single enterprise on the territory of CIS and one of the world largest enterprises with the full production cycle from processing of tantalum and niobium containing raw materials to finished products. To the future with us!

TaY and products

TaY Ingots

Produced by vacuum melting.
Supplied with the surface both as machined or as treated with an electron beam.

 Surface roughness < RZ 80.

Yttrium contained in ingot, % - 0,0002 - 0,0010
Tantalum could be refined with Yttrium up to 0,005%.

Chemical composition, %

Ta %, min Ti W C O N Na Al Cr Co Cu
99.9 0.0005 0.005 0.003 0.005 0.005 0.0002 0.0005 0.0015 0.0001 0.0005
Y Nb Fe Si Mo H Mg Ca Mn Ni Zr Sn
0.005 0.02 0.0015 0.0015 0.0005 0.0005 0.0002 0.0015 0.0002 0.0003 0.001 0.0002

Upon request of the customer control of other impurities is possible.

TaY and products

Diameter, mm Length, mm
115.0+10\-5 250 - 450


Produced of TaY ingot by forging, drawing or rolling and supplied with the surface both machined and non-machined


Upon agreement of the parties could be supplied as annealed (heat treatment)

Diameter, mm Length, mm
3.0 - 15.0 300 - 1500
16.0 - 90.0 300 - 1000


Upon agreement of the parties could be supplied as non-annealed (no heat treatment)

No.3 to No.8 grain size as per ASTM E-112-63
Ultimate tensile strength, kg/mm2> 650
Elongation, % < 5
Number of bends> 10
DCL, mA/cm2 < 2

Diameter, mm Length, mm
0.15 - 0.8 >1500


Thickness, mm Width, mm Length, mm
4.0 - 10.0 100-300 400-600
9.0 - 40.0 150-200 400-600

TaY mill products as foil, sheet and disc have the same sizes as Tantalum mill products
Upon request of the customer products with other dimensions are available.

TaY and products

Marketing Service of Uranium Production Department:

E-mail: Marketing_Ta@ulba.kz
phone: +7 (7232) 29-86-05
fax: +7 (7232) 24-06-83, +7 (7232) 29-82-73