Tantalum Fastener : Manufacturer, Stockiest and Supplier : Kinnari Steel
Tantalum Fastener : Manufacturer, Stockiest and Supplier : Kinnari Steel
Tantalum Fastener is dark (blue-gray) dense, ductile, very hard, easily fabricated, and highly conductive of heat and electricity. Kinnari Steel are Tantalum Fastener Manufacturer, Tantalum Fastener Stockiest & Tantalum Fastener Supplier.
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Tantalum Fasteners
Tantalum is a chemical element with Ta as its symbol. It belongs to group 5, periodic number 6 of the periodic table. Its atomic number is 73.
Tantalum is a silvery metal that is soft in its pure form. It is a strong and ductile metal and at temperatures below 150°C (302°F), this metal is quite immune to chemical attack. It is known to be resistant to corrosion as it displays an oxide film on its surface. This metal is rarely used as an alloying agent as it makes metals brittle with an exception of steel, in which case tantalum increases the ductility, strength and melting point of steel.
Although quite rare, tantalum is obtained from minerals such as tantalite, columbite, and euxenite.
Chemical Properties
The chemical properties of tantalum are provided in the table below.
Chemical Data | |
CAS number | 7440-22-7 |
Thermal neutron cross section | 21.3 barns/atom |
Electrode potential | 4.1 V |
Ionic radius | 0.680 Å |
Electronegativity | 1.5 |
X-ray absorption edge | 0.18393 Å |
Physical Properties
The following table discusses the physical properties of tantalum.
Properties | Metric | Imperial |
Density | 16.65 g/cm3 | 0.6015 lb/in3 |
Melting point | 2850 °C | 5162°F |
Boiling point | 6000 °C | 10832°F |
Mechanical Properties
The mechanical properties of tantalum (cold worked) are tabulated below.
Properties | Metric | Imperial |
Tensile strength | 900 MPa | 131000 psi |
Poisson’s ratio | 0.35 | 0.35 |
Modulus of elasticity | 186 GPa | 27000 ksi |
Shear modulus | 69 GPa | 10000 ksi |
Hardness, Vickers | 200 | 200 |
Hardness, Brinell | 195 | 195 |
Hardness, Rockwell A | 56 | 56 |
Hardness, Rockwell B | 92 | 92 |
Hardness, Rockwell C | 12 | 12 |
Thermal Properties
The thermal properties of tantalum are tabulated below.
Properties | Metric | Imperial |
Thermal expansion co-efficient (@20°C/68°F) | 6.50 µm/m°C | 3.61 µin/in°F |
Thermal conductivity | 54.4 W/mK | 378 BTU in/hr.ft2.°F |
APPLICATIONS
- High-temperature applications such as aircraft engines
- Electrical devices such as capacitors
- Surgical implants such as artificial joints and cranial plates, and surgical sutures
- In the chemical industry e.g. for heat exchanger in boilers in which strong acids are vaporized
- As a substitute for platinum, which is more expensive
- In components for nuclear power plants and missiles
Compounds of tantalum such as tantalum pentoxide is used to make capacitors and glass with a high index of refraction for use in camera lenses.
CHARACTERSTICS
Physical properties
Tantalum Fastener is dark (blue-gray) dense, ductile, very hard, easily fabricated, and highly conductive of heat and electricity. The metal is renowned for its resistance to corrosion by acids; in fact, at temperatures below 150 °C tantalum is almost completely immune to attack by the normally aggressive aqua regia. It can be dissolved with hydrofluoric acid or acidic solutions containing the fluoride ion and sulfur trioxide, as well as with a solution of potassium hydroxide. Tantalum’s high melting point of 3017 °C (boiling point 5458 °C) is exceeded among the elements only by tungsten, rhenium and osmium for metals, and carbon.
Tantalum Fastener exists in two crystalline phases, alpha and beta. The alpha phase is relatively ductile and soft; it has body-centered cubic structure (space group Im3m, lattice constant a = 0.33058 nm), Knoop hardness 200–400 HN and electrical resistivity 15–60 µΩּcm. The beta phase is hard and brittle; its crystal symmetry is tetragonal (space group P42/mnm, a = 1.0194 nm, c = 0.5313 nm), Knoop hardness is 1000–1300 HN and electrical resistivity is relatively high at 170–210 µΩּcm. The beta phase is metastable and converts to the alpha phase upon heating to 750–775 °C. Bulk tantalum is almost entirely alpha phase, and the beta phase usually exists as thin films obtained by magnetron sputtering, chemical vapor deposition orelectrochemical deposition from an eutectic molten salt solution.
Chemical properties
Tantalum Fasteners forms oxides with the oxidation states +5 (Ta2O5) and +4 (TaO2).The most stable oxidation state is +5, as seen in tantalum pentoxide. Tantalum pentoxide is the starting material for several tantalum compounds. The compounds are created by dissolving the pentoxide in basic hydroxide solutions or by melting it in another metal oxide. Such examples are lithium tantalate (LiTaO3) and lanthanum tantalate (LaTaO4). In the lithium tantalate, the tantalateionTaO−
3 does not occur; instead, this part of the formula represents linkage of TaO7−
6 octahedra to form a three-dimensionalperovskite framework; while the lanthanum tantalate contains lone TaO3−
4 tetrahedral groups.
The fluorides of Tantalum Fastener can be used for its separation from niobium. Tantalum Fastener forms halogen compounds in the oxidation states of +5, +4, and +3 of the type TaX 5, TaX 4, and TaX 3, although multi-core complexes and substoichiometric compounds are also known. Tantalum Fastener pentafluoride (TaF5) is a white solid with a melting point of 97.0 °C and tantalum pentachloride (TaCl5) is a white solid with a melting point of 247.4 °C. Tantalum Fastener pentachloride is hydrolyzed by water and reacts with additional tantalum at elevated temperatures by forming the black and highly hygroscopic tantalum tetrachloride (TaCl4). While the trihalides can be obtained by reduction of the pentahalides with hydrogen, the dihalides do not exist. A tantalum-tellurium alloy forms quasicrystals. Tantalum Fastener compounds with oxidation states as low as −1 have been reported in 2008.As in the cases of most other refractory metals, the hardest known compounds of tantalum are its stable nitrides and carbides. Tantalum carbide, TaC, like the more commonly used tungsten carbide, is a very hard ceramic that is used in cutting tools. Tantalum(III) nitride is used as a thin film insulator in some microelectronic fabrication processes. Chemists at the Los Alamos National Laboratory in the United States have developed a tantalum carbide-graphite composite material that is one of the hardest materials ever synthesized. Korean researchers have developed an amorphous tantalum-tungsten-copper alloy that is more flexible and two to three times stronger than commonly used steel alloys.There are two tantalum aluminides, TaAl3 and Ta3Al. These are stable, refractory, and reflective, and they have been proposed]as coatings for use in infrared wave mirrors.
ABOUT KSC
Kinnari Steel are exporters, stockiest & suppliers of Tantalum Fastener. Tantalum Fastener have special quality finishing and duress for long life, high pressure and zero defects.
The product differentiation is based on the premier finish of Tantalum Fastener with minimum burr at the edge. The ends for perfect welding and fabrication of the Tantalum Fastener in mega projects in oil and gas industry for long life of the product.
Orders at Kinnari Steel are guaranteed fast delivery of the Tantalum Fastener in the country. The main reason being we have an excellent warehousing and storage facilities for both finished and semi-finished goods.They are made ready as per the urgent requirements of the customers. The Tantalum Fastener are manufactured to sustain very high pressure and product warranty.
Lot of emphasis is placed on the packing and packaging. The Tantalum Fastener are packed in wooden corrugated boxes foiled in plastic wraps and bubble wraps.
Problems that customers face when they buy from other companies
- Non availability
- Late deliveries
- Poor packaging/ Unprofessional Packing
- Poor surface finish
- No Mill test report
- No control on quality and testing
- High rejection rate
- Poor after sales service
- Supply of wrong grades
- Material inconsistent with ASTM Standards
- Very hard material for use
- Dubious Practices
- Lack of knowledge
- Product fails under high pressure
- High pricing of the goods due to supplier commission
- No inspection of the goods
- Supply of used material
- Supply of rejected material
- Minus tolerance
- Weld repair of goods
Benefits that our company offers:
- World class buying experience
- Very quick delivery
- Mill test report/ Digital Mill test report in accordance with EN10204 NACE 3.1, NACE 3.2
- 3rd Party inspection
- High pressure sustainability
- Impeccable surface finish
- Product replacement warranty
- After sales support and service
- High quality packaging/ Premium Packaging and Packing for sea and Air transport
- Government and Private Laboratory Testing
- Test certificate from ISO 17025 Standards Laboratory
- Same day shipping of the goods
- Highest stock in the country
- Stringent Quality Testing and Control
- ISO 9001:2008 , ISO 14001:2004, OHSAS 18001:2007 Certifications.