ASTM B 391 : 2009 : EDT 1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Standard Specification for Niobium and Niobium Alloy Ingots (Withdrawn 2018)
Hardcopy , PDF
18-01-2018
English
01-10-2009
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
B 10
|
| DocumentType |
Standard
|
| Pages |
3
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
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.
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.