ASTM-B708 2005(Redline)

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B708-05 Standard Specification for Tantalum and Tantalum Alloy Plate, Sheet, and Strip (Redline)

Published By	Publication Date	Number of Pages
ASTM	2005	10

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Description

Abstract

This specification covers the standard requirements for tantalum and tantalum alloy plate, sheet, and strip in the following grades: R05200, R05400, R05255, R05252, and R05240. The various tantalum mill products covered by this specification shall be formed with the conventional extrusion, forging, and rolling equipment normally available in metal working plants. Materials shall be made from vacuum-arc or electron-beam melted ingots or powder metallurgy consolidated unalloyed tantalum and shall be supplied in the annealed condition. Chemical analysis shall be conducted to determine the chemical composition of the materials which shall conform to the requirements for carbon, oxygen, nitrogen, hydrogen, iron, molybdenum, niobium, nickel, silicon, titanium, tungsten, and tantalum. The mechanical properties of the materials shall also meet the specified tensile strength, yield strength, and elongation limits as shall be determined by a longitudinal or transverse tension test method.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers unalloyed and alloyed tantalum plate, sheet, and strip as follows.

1.1.1 R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both,

1.1.2 R05400, unalloyed tantalum, powder-metallurgy consolidation,

1.1.3 R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both,

1.1.4 R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both, and

1.1.5 R05240, tantalum alloy, 60 % tantalum, 40 % nobium, electron-beam furnace or vacuum-arc melt.

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

This standard does not purport to address all of the safety and/or he

Additional information

Standard Title	B708-05 Standard Specification for Tantalum and Tantalum Alloy Plate, Sheet, and Strip (Redline)
Published Code	ASTM
Publication Date	2005
Pages Count	10

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ASTM-B708 2005(Redline)

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