Standard Historical Last Updated: Dec 18, 2019 Track Document
ASTM B521-12

Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes

Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes B0521-12 ASTM|B0521-12|en-US Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes Standard new BOS Vol. 02.04 Committee B10
$ 73.00 In stock

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 of Practice E29.

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 R05200 which is unalloyed tantalum, vacuum melted, UNS Grade R05252 which is tantalum with 2.5% tungsten alloy, vacuum melted, UNS Grade R05255 which is tantalum with 10% tungsten alloy, vacuum melted, and UNS Grade R05240 which is tantalum alloy with 60% tantalum, 40% columbium, electron-beam furnace or vacuum arc melted, or both. Seamless tube shall be made by any seamless method and the welded tube shall be made from flat-rolled product by an automatic or semiautomatic fusion welding process with no addition of filler metal. Mechanical properties such as ultimate tensile strength, yield strength, and elongation shall be determined by tensile, flare, and reverse flattening tests. Nondestructive tests such as hydrostatic test, pneumatic test, helium leak test, and ultrasonic test shall be done as well.

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.

Price:
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Book of Standards Volume: 02.04
Developed by Subcommittee: B10.03
Pages: 4
DOI: 10.1520/B0521-12
ICS Code: 77.150.99