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ASTM B652/B652M-04

Historical Revision

Standard Specification for Niobium-Hafnium Alloy Ingots

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1.1 This specification covers hafnium alloyed niobium ingots prepared by vacuum- or plasma- arc melting or electron-beam furnace melting, or a combination of these methods, to produce consolidated metal for processing to various mill shapes.

1.2 The material covered by this specification is Grade R04295, niobium-base alloy containing approximately 10 % hafnium and 1 % titanium.

1.3 The values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. SI values cannot be mixed with inch-pound values.


This specification covers hafnium alloyed niobium ingots prepared by vacuum- or plasma- arc melting or electron-beam furnace melting, or a combination of these methods, to produce consolidated metal for processing to various mill shapes. The material shall conform to the required chemical composition prescribed. Each ingot should be tested for soundness by non-destructive test methods, such as dye penetrant and ultrasonic testing. Each ingot shall be tested for chemical composition in at least three positions along the length of the ingot.


SDO ASTM: ASTM International
Document Number B652
Publication Date May 1, 2004
Language en - English
Page Count 2
Revision Level 04
Supercedes
Committee B10.03
Publish Date Document Id Type View
May 1, 2010 B0652_B0652M-10 Revision
May 1, 2004 B0652_B0652M-04 Revision
Oct. 1, 2018 B0652_B0652M-10R18 Reaffirmation
May 10, 1999 B0652_B0652M-96R99 Reaffirmation