Tantalum balls, f 3.6 mm
Supplier — AvekGlob company — offers at affordable prices from the manufacturer tantalum balls Ø 3.6 mm. The supplier guarantees the timely delivery of products to any address specified by the consumer /
Technical specifications
Tantalum balls, in view of the great strength of the metal, from which they are made, are used as a working tool for ball mills when grinding a variety of products: particles of ore, cement, lump coal, etc. Due to their high surface hardness, tantalum balls Ø 3.6 mm are characterized by high wear resistance: in this parameter they approach the properties of hard alloys, but, unlike them, they do not collapse under impact loads.
High uniformity of mechanical characteristics of tantalum balls Ø 3.6 mm is due to the technology of their production. As initial billets are accepted — tantalum rods according to TU 95−234−80 from tantalum of TVCH-1 grade and tantalum rods from tantalum of TV-5 brand according to TU 48−4-311−74. The production of balls is carried out on cross-helical rolling mills, where the equal strength of the material over the entire section is achieved by an approximate equality of the deforming stresses.
Urgency of application
In addition to mills for grinding abrasive substances, tantalum balls Ø 3.6 mm are used for contact with corrosive media in pumps, electronic components, chemical equipment of nuclear reactors and valve parts. Due to the suitable density, tantalum balls are often used in flowmeters, and also as markers for medical procedures. Tantalum balls are resistant to the effects of organic solutions, salt water, acids, cold ammonia, as well as active halides of chlorine, bromine and iodine.
Chemical composition
It is determined by the brand of initial tantalum (numerical data — in percent, tantalum — basis):
| Element / grade of tantalum | HDTV-1 | HDTV | TV-5 |
| Niobium | 0.1 | 0.25 | 1.0 |
| Iron | 0.005 | 0.005 | 0.01 |
| Silicon | 0.003 | 0.003 | 0.01 |
| Tungsten + molybdenum | 0,0015 | 0,0015 | 0.01 |
| Titanium | 0,001 | 0.01 | 0.1 |
| Cobalt | 0.0001 | - | - |
| Calcium | 0.002 | 0.002 | - |
| Sodium | 0.0003 | 0.0003 | - |
| Nickel | 0.0005 | 0.0005 | - |
| Manganese | 0.0003 | 0.0003 | - |
| Aluminum | 0.0008 | 0,001 | - |
| Copper | 0.0006 | 0.0006 | - |
| Chromium | 0.0006 | 0.0006 | - |
| Magnesium | 0.0003 | 0.0004 | - |
| Zirconium | 0.0005 | 0.0005 | - |
| Tin | 0.0005 | 0.0005 | - |
| Carbon | 0.01 | 0.01 | 0.01 |
| Hydrogen (bound) | 0,001 | 0,001 | 0,001 |
| Nitrogen (bound) | 0.01 | 0.01 | 0.01 |
| Oxygen (bound) | 0,015 | 0,015 | 0.01 |
Physical and mechanical properties
- Density, kg / m 3 — 16400;
- Melting point, 0 С — 3017;
- Specific heat capacity, J / kggrad — 170;
- Modulus of elasticity, GPa — 185.7;
- The limit of temporary resistance, MPa — 900;
- Hardness according to Brinell, HB, not more than — 195;
- Coefficient of thermal conductivity, W / megade — 54.4;
- The coefficient of thermal expansion in the temperature range 20… 100 0 С, μm / deg — 6.5.
Features of application
Tantalum balls Ø 3.6 mm, used in medical technology, necessarily undergo surface cleaning, polishing and passivation.
Supplier — AvekGlob Company — offers to purchase tantalum balls Ø 3.6 mm in any quantity. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.