![[IMG]](https://cdn.discordapp.com/attachments/426475766176546816/432351947140366337/Impervium.png)
Impervium is a dark, dense and heavy metal which holds the highest tensile strength among the stellar metals, having great density and strength that can defend against most kinetic attacks. Due to these effects, impervium is best used where its weight is not an issue, such as in spacecraft hulls, treaded tank hulls, bunker plating, and even heavier mechs or power armors, sometimes even seeing use as a replacement for I-Beams in construction. Impervium is produced through the further refining and reprocessing of super-heated Rubium within an inert, high-pressure atmosphere. During the process to produce it, electric currents are inducted through the metal and it is doped with a mixture of metals and metalloids that include carbon, various heavy metals, and silver. This process forms a series of nano-structures that resemble carbon nanotubes within the metal, contributing to its strength and its signature black sheen. The process for Impervium production is notably difficult to do properly, and requires large amounts of expensive equipment that takes a great deal of knowledge to operate.
While possessing great tensile strength, its weakness is in both its weight and its tendency to weaken and dull when subjected to immense heat such as that of plasma or laser weapons, decreasing its tensile strength to that of even less than durasteel; this downside often forces military vessels to introduce a layer of ferozium plating under the impervium hull, to protect against energy attacks that the impervium hull cannot fend off. In addition, impervium is useful in many electronic appliances as a room-temperature superconductor, becoming a highly charged deathtrap when subjected to enough electricity; this makes it useful in the construction of things such as power substations or plants due to the weight of the material being too high to be carried, yet cheaper than other room-temperature superconductors. Impervium melts at around 1300 degrees Fahrenheit.
WEIGHT: 0.70 lbs per cubic inch.
DURABILITY: ~9-10
FLEXIBILITY: About the same as Durasteel, but with a higher threshold.
THERMAL CONDUCTIVITY: High.
ELECTRICAL CONDUCTIVITY: High.
AVERAGE PRICE: 0.38 Px / in^3