ASTM B391

Standard Specification for Niobium and Niobium Alloy Ingots

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Organization: ASTM
Publication Date: 10 November 1999
Status: inactive
Page Count: 3
ICS Code (Other products of non-ferrous metals): 77.150.99
scope:

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.

NOTE 1 - Committee B-10 has adopted "niobium" as the designation for Element No. 41, formerly named "columbium."

The materials covered by this specification are:

R04200-Type 1 - Reactor grade unalloyed niobium,

R04210-Type 2 - Commercial grade unalloyed niobium,

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

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

The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

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.

Document History

April 1, 2018
Standard Specification for Niobium and Niobium Alloy Ingots
This specification covers unalloyed and alloyed niobium ingots prepared by vacuum- or plasma-arc melting or electronbeam melting to produce consolidated metal for processing to various mill shapes....
October 1, 2009
Standard Specification for Niobium and Niobium Alloy Ingots
This specification covers unalloyed and alloyed niobium ingots prepared by vacuum- or plasma-arc melting or electronbeam melting to produce consolidated metal for processing to various mill shapes....
October 1, 2009
Standard Specification for Niobium and Niobium Alloy Ingots
This specification covers unalloyed and alloyed niobium ingots prepared by vacuum- or plasma-arc melting or electronbeam melting to produce consolidated metal for processing to various mill shapes....
May 10, 2003
Standard Specification for Niobium and Niobium Alloy Ingots
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....
ASTM B391
November 10, 1999
Standard Specification for Niobium and Niobium Alloy Ingots
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....
May 10, 1996
Standard Specification for Niobium and Niobium Alloy Ingots
A description is not available for this item.
September 29, 1989
STANDARD SPECIFICATION FOR NIOBIUM AND NIOBIUM ALLOY INGOTS
A description is not available for this item.
August 31, 1984
STANDARD SPECIFICATION FOR NIOBIUM AND NIOBIUM ALLOY INGOTS
A description is not available for this item.
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