This specification covers unalloyed molybdenum and molybdenum alloy bar, rod, and wire as follows:

Molybdenum 360—Unalloyed vacuum arc-cast molybdenum.

Molybdenum 361—Unalloyed powder metallurgy molybdenum.

Molybdenum Alloy 363—Vacuum arc-cast molybdenum–0.5 % titanium–0.1 % zirconium (TZM) alloy.

Molybdenum Alloy 364—Powder metallurgy molybdenum–0.5 % titanium–0.1 % zirconium (TZM) alloy.

Molybdenum 365—Unalloyed vacuum arc-cast molybdenum, low carbon.

Molybdenum Alloy 366—Vacuum arc-cast molybdenum, 30 % tungsten alloy.

Formerly under the jurisdiction of Committee B10 on Reactive and Refractory Metals and Alloys, this specification was withdrawn in January 2010 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

This specification covers unalloyed molybdenum and molybdenum alloy bar, rod, and wire. The following materials are covered: molybdenum 360, molybdenum 361, molybdenum 363, molybdenum 364, molybdenum 365, and molybdenum 366. These materials shall be manufactured with conventional extrusion, forging, swaging, rolling, and drawing equipment. These shall materials be made by vacuum arc-melted or powder metallurgy methods. The chemical composition shall conform to the required contents of carbon, oxygen, nitrogen, iron, nickel, silicon, titanium, tungsten, zirconium, and molybdenum. Chemical analysis shall be done. Mechanical properties shall conform to the required tension properties: tensile strength, yield strength, elongation, and diamond pyramid hardness. Tension test shall also be done.

1.1 This specification covers unalloyed molybdenum and molybdenum alloy bar, rod, and wire as follows:

1.1.1 Molybdenum 360—Unalloyed vacuum arc-cast molybdenum.

1.1.2 Molybdenum 361—Unalloyed powder metallurgy molybdenum.

1.1.3 Molybdenum Alloy 363—Vacuum arc-cast molybdenum-0.5% titanium-0.1% zirconium (TZM) alloy.

1.1.4 Molybdenum Alloy 364—Powder metallurgy molybdenum-0.5% titanium-0.1% zirconium (TZM) alloy.

1.1.5 Molybdenum 365—Unalloyed vacuum arc-cast molybdenum, low carbon.

1.1.6 Molybdenum Alloy 366—Vacuum arc-cast molybdenum, 30% tungsten alloy.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.