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ASTM-B391:2009 Edition

ASTM-B391:2009 Edition

$35.75

B391-09e1 Standard Specification for Niobium and Niobium Alloy Ingots

Published By Publication Date Number of Pages
ASTM 2009 3
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1.1 This specification covers unalloyed and alloyed niobium ingots prepared by vacuum- or plasma-arc melting or electron-beam melting to produce consolidated metal for processing to various mill shapes.

1.2 The materials covered by this specification are:

1.2.1 R04200-Type 1 Reactor grade unalloyed niobium,

1.2.2 R04210-Type 2 Commercial grade unalloyed niobium,

1.2.3 R04251-Type 3 Reactor grade niobium alloy containing 1 % zirconium, and

1.2.4 R04261-Type 4 Commercial grade niobium alloy containing 1 % zirconium.

1.3 Unless a single unit is used, 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.

1.4 The following precautionary caveat pertains only to the test method portions of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Ordering Information
Materials and Manufacture
Chemical Requirements
Permissible Variations
2 Quality and Finish
Sampling
Number of Tests and Retests
Significance of Numerical Limits
Test Method
Rejection and Rehearing
TABLE 1
3 Certification
Product Marking
Packaging and Package Marking
Keywords

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