A stub of tantalum
Supplier — Avec Glob Company — offers tantalum plugs at an affordable price from the manufacturer. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Technical specifications
Tantalum is silver metal, with a characteristic luster, which is distinguished by high corrosion resistance. Tantalum, long recognized for its excellent strength at high temperatures, is also one of the most corrosion-resistant metals, resistant to most acids, comparable to the resistance to glass and platinum. Due to these qualities — strength at high temperatures and excellent corrosion resistance, tantalum plugs provide reliable sealing of pipelines in the petrochemical and gas industries.
Given the good plasticity of tantalum, the molding of plugs of various sizes and configurations is not particularly difficult
Urgency of application
Tantalum plugs are used as auxiliary valves of pipelines intended for pumping aggressive media. For their production, different types of initial blanks are used: rods, a circle, a sheet. The chemical inertness of the tantalum plugs is maintained to temperatures of at least 150 ° C. With the help of tantalum disk plugs, the inspection windows of the pipelines are also sealed, as well as small external damages of the drilling equipment.
Chemical composition
The composition of the metal used for the production of tantalum plugs, as impurities, includes the following elements (in thousandths of a percent)
Elements |
99.95% Ta | 99.98% Ta | 99.99% Ta |
99.995% Ta |
| Max | Max | Max | Max | |
| Al | 10 | 5 | 1 | 0.5 |
| Ca | 10 | 5 | 1 | 1 |
| Cl | 3 | 3 | 1 | 1 |
| Co | 10 | 5 | 1 | 0.5 |
| Cr | 10 | 5 | 1 | 0.5 |
| Cu | 5 | 5 | 1 | 0.5 |
| Fe | 50 | 20 | 5 | 1 |
| K | 2 | 2 | 0.4 | 0.1 |
| Li | 1 | 1 | 0.5 | 0.05 |
| Mg | 10 | 5 | 1 | 0.5 |
| Mn | 10 | 5 | 1 | 0.5 |
| Mo | 50 | 20 | 10 | 10 |
| Na | 1 | 1 | 0.4 | 0.4 |
| Nb | 300 | 100 | 100 | 50 |
| Ni | 20 | 10 | 5 | 1 |
| Pb | 5 | 5 | 1 | 1 |
| Si | 10 | 10 | 1 | 0.5 |
| Sn | 10 | 5 | 1 | 1 |
| Ti | 10 | 5 | 1 | 1 |
| V | 5 | 5 | 1 | 1 |
| W | 150 | 100 | 80 | 50 |
| Zn | 5 | 5 | 1 | 1 |
| Zr | 20 | 10 | 5 | 1 |
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.
Assortment and application features
For the production of tantalum plugs, rolling profiles, castings and sintered blanks that meet the requirements of TU 11−78, TU 95.205−78 and SU0.021 are used. 016−77.
Tantalum plugs can not be used in the production of hydrofluoric acid, which easily destroys tantalum. Strong alkalis, oxalic acid and fuming sulfuric acid, as well as any solution containing fluoride ions, should also be avoided.
Supplier — AvekGlob Company — offers to purchase tantalum plugs in a large assortment of sizes. 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.