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ASTM-B521:2012 Edition

ASTM-B521:2012 Edition

$35.75

B521-12 Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes

Published By Publication Date Number of Pages
ASTM 2012 4
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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.

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