Pure Lead Review Review
Pure lead has a clear appearance. Silver is blue. It gets stained by exposure to humid air. In this case, pure lead takes on an opaque appearance. Its color depends on the prevailing conditions. One of the most prominent properties of pure lead is its high density, flexibility and high corrosion resistance due to its inactivity.
An example of lead purified from molten state
The cubic structure of pure lead and high atomic weight results in a density of 11.34 g / cm3. Some of the rarer metals are denser. Tungsten and gold are both the most dense metal known at 19.3 g / cm and osmium. Which has a density of 22.59 g / cm. And it’s almost a second lead.
Other Pure Lead Features
Pure lead is a very soft metal. Scratched with one finger. It is completely flexible. Pure lead is somewhat flexible. Lead tensile strength is 17-112 MPa. (6 times aluminum, 10 times copper and 15 times steel). It can be enhanced by adding small amounts of copper or antimony. The net melting point of pure lead is 327.5 ° C. It is much lower than most metals. The boiling temperature is 1749 ° C.
The lowest is among the elements of the carbon group. The electrical resistance of lead at 20 ° C is 192 nm ohm. Lead is a superconductor at temperatures below 7.19 ° C. Frequency of lead particles in the solar system is 121.0 ppb. That’s two and a half times the amount of platinum. Eight times as much as mercury and seventeen times as much as gold. The amount of lead in the world is slowly increasing. The abundance of lead in the solar system has increased about 0.75% since its formation 4.5 billion years ago. The table shows the abundance of the solar system. That lead is more common than most other elements with atomic numbers greater than 40, despite its relatively high atomic number.
History of lead metal
Metallic grains have been found in Asia Minor since 7000 to 6500 BC. And it may be the first example of metal melting. Lead was of little use at that time due to its softness and opaque appearance. The most important reason for the expansion of lead production is its association with silver. That can be achieved by burning a gallon. The ancient Egyptians made the first use of lead minerals in cosmetics. Egyptians may have used lead for glazes, glasses, enamels and ornaments. Lead was used to build water pipes in the Roman Empire. The Latin word for lead metal comes from the English word plumbing.
In Europe, lead production increased in the 11th and 12th centuries, when it was again used for roofing and plumbing. Arms were invented in the late 18th century, and lead, despite being more expensive than iron, was chosen as the main material for bullet making. Since 2014, lead production is increasing worldwide due to its use in lead acid batteries. . There are two major categories of production: primary from ore, and secondary from deregulated lead.
In 2014, 4.58 million tons of primary production and 5.64 million of secondary production. The top three producers of mine lead concentrate that year were China, Australia and the United States. The top three producers of refined lead were China, the United States, and India.
Pure Lead Application:
Lead is very common in the industry due to its properties such as low melting point, high density, ductility and corrosion resistance. And in the middle ages it was used for the first time in bullets. Other uses include:
۱ – Because of its corrosion resistance, it is used as a protective sheath for underwater cables.
۲- Lead is widely used in the construction industry, for example in prefabricated roofs and fittings.
۳٫ Lead is added to copper alloys such as brass and bronze to improve its machining and lubrication quality.
۴٫ Copper alloys with higher concentration of lead are used in bearings.
۵٫ Lead is used as sound insulation in walls, floors and ceilings. Sound studios are used.
۶- Molten lead has been used as coolant in some reactors.
۷- Most use of lead in the early part of the century It is one of the first in lead-acid batteries. Lead has other applications that have increased the need for it in the industry. With the analysis to offer the best price
and quality assurance.
Our products include:
Premium soft and dry lead ingots.
Types of lead sheets 2-4 mm
Lead by customer order.Contact our experts for more information.
about Tehran metal market
Tehran Metal Market Trading Group is a pure lead supplier of reputable lead generation factories as well as pure lead ingot with analysis workshop to supply the best price and quality assurance. Types of lead sheets 2-4 mm. Wire lead with customer order