ASTM B386 Molybdenum Alloy Plate

Molybdenum belongs to the group of refractory metals. Refractory metals are metals with a higher melting point than platinum (1772 degree ). In refractory metals, the binding energy of individual metal atoms is particularly large. Refractory metals have a combination of high melting point, low vapor pressure, high modulus of elasticity and high thermal stability. In addition, refractory metals also exhibit the typical characteristics of low thermal expansion coefficient and high density. Thanks to its mechanical and chemical properties, molybdenum is an outstanding material capable of meeting demanding requirements. Its advantages of high melting point, low coefficient of thermal expansion and good thermal conductivity make it widely used in many different industrial fields.

This specification covers unalloyed molybdenum and molybdenum alloy plate, sheet, strip, and foil as follows: Molybdenum 360; Molybdenum 361; Molybdenum Alloy 363; Molybdenum Alloy 364; Molybdenum 365; and Molybdenum Alloy 366. The various molybdenum mill products covered by this specification shall be formed with the conventional extrusion, forging, or rolling equipment normally found in primary ferrous and nonferrous plants. The ingot metal for Molybdenum 360 and 365 and Molybdenum Alloys 363 and 366 is vacuum arc-melted in furnaces of a type suitable for reactive, refractory metals. For Molybdenum 361 and Molybdenum Alloy 364, the metal is consolidated by powder metallurgy methods. The molybdenum and molybdenum alloy ingots and billets for conversion to finished products covered by this specification shall conform to the chemical composition requirements for carbon, oxygen, nitrogen, iron, nickel, silicon, titanium, tungsten, zirconium, and molybdenum. The material shall conform to the mechanical property requirements for tensile strength, yield strength, elongation, and minimum bend radius.

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