Molybdenum circle

The molybdenic circle is a product molybdenum of ovy hire, remarkable the exclusive characteristics. It has high thermal stability and mechanical durability, corrosion firmness in many hostile environment, among them in the hot concentrated solutions of alkalis and acids: sulfuric salt and fluoric. Molybdenum and alloys with its contents possess viscosity, durability, an insignificant indicator of temperature expansion and the high module of elasticity. Such circle not only has rather easy specific weight, but also differs in bigger durability at high temperatures (1370 °C). The alloys alloyed by the titan and molybdenum transfer heating to 1500 °C. Distinguish circles of the MCh, MK, MS brands (molybdenum with silicon impurity). The circle of MS is applicable at temperatures over 2000 °C. Circles of the MCh, MRN brands, (molybdenum with silicon and alkaline additive) differ in high rates of recrystallization and the increased durability at stretching and a bend in the annealed look. Addition of cobalt to structure allows to increase plasticity of a circle in the annealed state. One of the defining shortcomings, the high cost of production is. Mo - rather rare metal, differs in complexity of receiving in pure form, badly gives in to processing, refractory. In pure form it is heavier than steel and iron and is fragile metal though gives to alloys durability. At usual temperatures it differs in low plasticity.