No, cobalt is not as strong as tungsten. Cobalt has a very high melting point (2570°C) and a low resistivity, which makes it suitable for use in magnetism applications, but its tensile strength (defined as the maximum force per unit area before a material stretches, deforms, or breaks) is not as high as that of tungsten (17,720 Mega Pascals).
So compared to tungsten, cobalt is weaker and less hard. For applications which need a strong and hard material, tungsten is the material of choice, whereas for applications where corrosion resistance and high melting points are important (such as for welding rods or materials for space exploration), cobalt is a better choice.
Is cobalt more expensive than tungsten?
The answer to this question depends on a number of factors, including the current market value of the materials, current supply and demand levels, and the quality or form of the material. Generally speaking, cobalt is substantially more expensive than tungsten, but this can vary depending on the time frame, market conditions, and the form of material that is being considered.
At the time of writing, the average cost of tungsten was between $15-30 per kilogram, whereas the price of cobalt has been increasing in recent years, having nearly quadrupled from around $19 per kilogram in 2015 to around $80 per kilogram in July 2019.
This is due to a combination of increasing demand from battery and other technology production and the fact that much of the world’s cobalt supply is concentrated in politically unstable areas of the world, which can drastically effect global cobalt prices.
Additionally, certain grades of cobalt, such as cobalt alloy, can be even more expensive due to the additional processing and refining that is required.
Overall, while prices can vary depending on current market conditions, it is generally safe to say that cobalt is more expensive than tungsten.
How hard is cobalt?
Cobalt is considered a “hard” metal, with a Mohs hardness rating of 5.5-6. Cobalt is harder than most metals, but softer than tungsten, titanium, and other “hard” alloys. It is important to note that cobalt is relatively soft and malleable when compared to other “hard” metals, so any attempt to machine or fabricate the metal must be done with care.
Cobalt tends to be brittle in temperatures below 0°C (32°F). At room temperature, cobalt can be cut, drilled, and machined using conventional methods and tools. Compared to other metals and alloys, cobalt is relatively difficult to weld because of its hardness, but it can be welded if the right welding processes and equipment are used.
Is cobalt a solid liquid or gas?
Cobalt is a solid. Cobalt is a transition metal in group 9 of the periodic table. It has an atomic number of 27 and an atomic weight of 58.933. The most common form of cobalt is a blue-gray metallic element that is hard, brittle and has a high melting point.
Cobalt is naturally found in Earth’s crust in small amounts as a compound and is nontoxic to humans and animals. Cobalt is often found combined with other elements in minerals such as cobaltite, smaltite and linneite, or as a trace element in potash, coal and other minerals.
It is mined in countries such as China, Russia, Canada, Australia, Namibia and Morocco. Cobalt is used in a variety of industries, including electronics, aerospace, automotive, and chemistry. It is used in alloys, magnets, batteries, and paints, and can be found in jet turbine blades, electrical contacts, electroplating and dental prostheses.
Is cobalt rare or common?
Most sources classify cobalt as a moderately rare element in the Earth’s crust; it is estimated to comprise about 0.0029% of the Earth’s crust by weight. This is roughly equivalent to 4 parts per million, making it slightly more abundant than silver.
Cobalt is significantly rarer than many other metals, such as iron, zinc, and copper. It is even rarer in the Earth’s atmosphere, where it only comprises 0.0018 parts per million.
Cobalt can be found in numerous metal deposits, but is more likely to be concentrated as a sulfide ore in sedimentary rocks and in the hydro-thermal deposits of felsic magmas. The metal can also be found in meteorites and marine deposits.
In modern times, commercial production of the metal has been largely focused in the Democratic Republic of Congo, Australia, Zambia, Russia, Canada, and Botswana.
Due to its usefulness in alloys and high-performance magnets, the need for cobalt has grown significantly in recent decades. This has forced nations and companies to look beyond traditional sources for cobalt, leading to new technologies for extracting the metal from undersea deposits and other unconventional sources.
Is cobalt toxic?
Cobalt is generally considered not to be toxic when taken in small amounts. However, consuming too much of it can be hazardous and it has been linked to a variety of health problems, including cancer.
When taken in large amounts, cobalt can be toxic, causing nausea, vomiting, dizziness, breathing problems, and even death. It has been associated with several types of cancer, including lung cancer and leukemia, as well as anemia and other blood disorders.
In addition, it has been associated with fertility problems, congenital abnormalities, memory loss, and other neurological problems. Inhaling cobalt dust or fumes can also lead to serious health issues.
In summary, cobalt can be toxic when taken in too large of quantities, though it is generally considered to be generally safe.
Is lead heavier than steel?
Yes, lead is generally heavier than steel. Lead has a density of 11.34 g/cm3, while steel has a density of between 7.75 and 8.05 g/cm3. Lead is also a much softer metal than steel, with a Mohs Hardness Scale rating of only 1.
5 compared to 4.5 for steel. This makes lead a particularly useful metal for shielding against radiation and also gives it properties that make it a great sealant and an excellent material for heat sinks.
Lead also has a relatively low melting point compared to steel, at 327.5 °C compared to 1520-1550 °C for steel.
What is the heaviest metal on earth?
The heaviest metal on earth is osmium. It has a density of 22.59 g/cm3, which makes it the densest of all elements. Osmium has been known since antiquity, but it wasn’t isolated until 1803. It is a rare metal found in small amounts in meteorites and in the broad range of igneous rocks.
It is actually a transition metal, the eighth most abundant element in the Earth’s crust. Osmium is incredibly tough and has a high melting point of more than 3,500 degrees Celsius. It is mainly used in the manufacture of electrical appliances and can be alloyed with other metals to create strong yet lightweight alloys that are used in industrial applications.
It is also used to make fountain pen nibs, thermocouples, and other electrical contacts.
Is lead heavy?
Yes, lead is a heavy metal. It has an atomic weight of 207.2 g/mol and a density of 11.34 g/cm3, making it one of the densest elements found in nature. Lead has been used in many ways throughout history, such as in the production of weapons and ammunition, pipes, and counterweights.
It has also been used in storage batteries, ceramic glazes, radiation shielding, and weights for fishing nets. Lead has a toxicity to humans and animals, and so its use has been increasingly regulated in recent years.
How much heavier is lead than iron?
Lead is much heavier than iron. The density of pure iron is 7.8 g/cm3, while the density of lead is 11.3 g/cm3. This means that a given volume of lead is about 44.8% denser than the same volume of iron.
Therefore, if we were to compare two equal volumes of iron and lead, the lead would be almost 1.45 times as heavy as the iron. To put this into perspective, if we were to take a cube with sides of 1 cm, the cube of lead would weigh 11.
3 grams, while the cube of iron would weigh 7.8 grams. Therefore, the cube of lead would weigh 44.8% more than the iron cube.
Which is stronger cobalt or tungsten?
It depends on what is meant by “stronger.” Cobalt and tungsten have very different properties, so their strengths depend on what specific qualities are being compared.
Tungsten has a higher melting point than cobalt, meaning that it can resist temperatures up to 6,192°F (3,422°C). This makes it a better choice for applications that require high-temperature resistance.
Cobalt, on the other hand, has a higher hardness than tungsten. This makes it more wear-resistant and better suited for cutting tools and high-impact applications. In addition, cobalt has very magnetic properties and is conductive, making it ideal for use in electronics.
Ultimately, the answer to which metal is stronger depends on what specific qualities are needed for an application. If high-temperature resistance is needed, tungsten is the better choice. Conversely, if wear-resistance and magnetic or conductive properties are needed, then cobalt is the better option.
What is heavier tungsten or cobalt?
Though both tungsten and cobalt are heavy metals, tungsten is heavier than cobalt. Tungsten is a dense metal and it has the highest melting point of all metals at 3,412 degrees Celsius. Additionally, tungsten has a density of 19.25 g/cm³.
On the other hand, cobalt is a hard and malleable metal, also known for its magnetic properties, and it has a density of 8.90 g/cm³. Therefore, tungsten is heavier than cobalt, though both are considered to be heavy metals.
Will cobalt rings break?
Cobalt rings can be very strong and durable, so they are unlikely to break. However, they are not indestructible. As with any material, they can be damaged through excessive force or wear-and-tear over time.
Cobalt jewelry is much harder and stronger than many other metals such as gold or sterling silver, but it is still vulnerable to physical impact. A hard enough hit or drop could cause a cobalt ring to crack, bend or break.
The design of the ring can also affect its strength and the likelihood of it breaking. Rings with a high, thin center band and thin side waist bands are more likely to bend than a ring with a solid, wide band.
Therefore, it is important to take proper care of a cobalt ring and always treat it with respect in order to prolong its life and reduce the chances of it breaking.
Is cobalt good for jewelry?
Yes, cobalt is a great metal for jewelry. It has several key features that make it highly desirable for jewelry makers. First, cobalt is one of the strongest and most scratch-resistant metals available, making it ideal for jewelry that will withstand day to day wear and tear.
In addition, cobalt is extremely lightweight, allowing for jewelry that feels comfortable when worn. Finally, cobalt is also hypoallergenic and non-corrosive, meaning it is less likely to cause skin irritation or rust when exposed to water or other moisture.
Is tungsten a carbide?
No, tungsten is not a carbide. Tungsten is a chemical element with the symbol W and atomic number 74. It is classified as a transition metal, and is found in many common alloys. Tungsten is known for its high melting point and hardness.
However, tungsten does not form carbides, which are compounds of carbon and other elements such as silicon, boron and tungsten. Instead, tungsten forms tungstates, which are compounds containing tungsten and oxygen.
Tungsten carbide is made artificially by combining powdered tungsten and carbon together, usually in a furnace. Tungsten carbide is used in many industrial applications such as cutting tools, drilling bits, and armor-piercing rounds.
What is carbide made of?
Carbide is a compound made of carbon, as well as a metal or nonmetal. Carbides are generally divided into two groups: compound carbides, which are composed of two or more metals, and pure or binary carbides, which are composed of a single metal or nonmetal.
Examples of compound carbides include tungsten carbide, titanium carbide, and boron carbide. Examples of binary carbides include calcium carbide, silicon carbide, and aluminium carbide.
Carbides are characterized by their hardness and superior wear resistance, making them ideal for cutting and drilling tools. They have a high melting point, making them also useful for components that need to be heat resistant.
Carbides are formed through a process called self-hardening, which is the result of carbon and metal or nonmetal atoms combining to form large molecules with strong bonds. These strong bonds make carbides highly resistant to impact and erosion, while their ability to retain a sharp edge makes them good at cutting and drilling hard materials.
In addition to their practical uses, carbides are also used in ceramics and jewelry, and can be implanted in the human body to treat certain medical conditions. They are also used in the production of graphene, a form of carbon that has a wide range of applications in electronics and other industries.