Norm

ASTM B391-09e1

Standard Specification for Niobium and Niobium Alloy Ingots

48,24

Over deze norm

Status Definitief
Aantal pagina's 3
Commissie B10.03
Gepubliceerd op 01-10-2009
Taal Engels

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 1Reactor grade unalloyed niobium,

1.2.2 R04210-Type 2Commercial grade unalloyed niobium,

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

1.2.4 R04261-Type 4Commercial 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.

Details

ICS-code 77.150.99
Nederlandse titel Standard Specification for Niobium and Niobium Alloy Ingots
Engelse titel Standard Specification for Niobium and Niobium Alloy Ingots

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