ASTM-B708 › Standard Specification for Tantalum and Tantalum Alloy Plate, Sheet, and Strip
The following bibliographic material is provided to assist you with your purchasing decision:
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.
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 % niobium, electron-beam furnace or vacuum-arc melt.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety and/or health problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Keywords
tantalum; tantalum niobium alloy; tantalum plate; tantalum sheet; tantalum strip; tantalum tungsten alloy; Ta-2.5 %W; Ta-10 %W; Ta-40 %Nb;
To find similar documents by ASTM Volume:
To find similar documents by classification:
77.150.99 (Other products of non-ferrous metals)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Customers who bought this document also bought:
ASTM-E18Standard Test Methods for Rockwell Hardness of Metallic Materials
ASTM-A312
Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM-A240
Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
Document Number
ASTM-B708-12(2019)
Revision Level
2012 R19 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
Nov. 1, 2019
Document Type
Specification
Page Count
7 pages
Committee Number
B10.03