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ASTM International - ASTM B521-19

Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes

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Organization: ASTM International
Publication Date: 1 November 2019
Status: active
Page Count: 4
ICS Code (Other products of non-ferrous metals): 77.150.99
significance And Use:

12.1 For the purpose of determining compliance with the specified limits of property requirements, an observed value or a calculated value shall be rounded in accordance with the rounding method... View More

scope:

1.1 This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades:

1.1.1 UNS Grade R05400-Unalloyed tantalum, powder-metallurgy consolidation,

1.1.2 UNS Grade R05200-Unalloyed tantalum, vacuum melted,

1.1.3 UNS Grade R05252-Tantalum + 2.5 % tungsten alloy, vacuum melted.

1.1.4 UNS Grade R05255-Tantalum + 10 % tungsten alloy, vacuum melted.

1.1.5 UNS Grade R05240-Tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum arc melt, or both.

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 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.

abstract:

This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades: UNS Grade R05400 which is unalloyed tantalum, powder-metallurgy consolidation, UNS Grade... View More

Document History

ASTM B521-19
November 1, 2019
Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes
1.1 This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades: 1.1.1 UNS Grade R05400—Unalloyed tantalum, powder-metallurgy consolidation, 1.1.2 UNS...
December 1, 2012
Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes
1.1 This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades: 1.1.1 UNS Grade R05400—Unalloyed tantalum, powder-metallurgy consolidation, 1.1.2 UNS...
May 1, 2004
Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes
This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades: UNS Grade R05400 which is unalloyed tantalum, powder-metallurgy consolidation, UNS Grade...
April 10, 1998
Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes
1.1 This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades: 1.1.1 UNS Grade R05400 -Unalloyed tantalum, powder-metallurgy consolidation, 1.1.2 UNS...
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