ASTM B386/B386M-19

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Designation:B386/B386M −19
Standard Specification for
Molybdenum and Molybdenum Alloy Plate,
1
Sheet, Strip, Foil, and Ribbon
This standard is issued under the fixed designation B386/B386M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope not purport to address all of the safety concerns, if any,
associated with its use. It is the responsibility of the user of this
1.1 This specification covers unalloyed molybdenum and
standard to establish appropriate safety, health, and environ-
molybdenum alloy plate, sheet, strip, foil, and ribbon as
mental practices and determine the applicability of regulatory
follows:
limitations prior to use.
1.1.1 Molybdenum 360—Unalloyed vacuum arc-cast mo-
1.4 This international standard was developed in accor-
lybdenum.
dance with internationally recognized principles on standard-
1.1.2 Molybdenum 361—Unalloyed powder metallurgy mo-
ization established in the Decision on Principles for the
lybdenum.
Development of International Standards, Guides and Recom-
1.1.3 Molybdenum Alloy 363—Vacuum arc-cast molybde-
mendations issued by the World Trade Organization Technical
num-0.5 % titanium-0.1 % zirconium (TZM) alloy.
Barriers to Trade (TBT) Committee.
1.1.4 Molybdenum Alloy 364—Powder metallurgy molyb-
denum-0.5 % titanium-0.1 % zirconium (TZM) alloy.
2. Referenced Documents
1.1.5 Molybdenum 365—Unalloyed vacuum arc-cast
2
2.1 ASTM Standards:
molybdenum, low carbon.
E8 Test Methods for Tension Testing of Metallic Materials
1.1.6 Molybdenum Alloy 366—Vacuum arc-cast molybde-
[Metric] E0008_E0008M
num-30 % tungsten alloy.
E29 Practice for Using Significant Digits in Test Data to
1.1.7 Drawing Grade—A drawing grade is defined, which
Determine Conformance with Specifications
may be specified as a separate requirement by the purchaser.
E92 Test Methods for Vickers Hardness and Knoop Hard-
1.2 Units—The values stated in either SI units or inch-
ness of Metallic Materials
pound units are to be regarded separately as standard. The
E345 Test Methods of Tension Testing of Metallic Foil
values stated in each system are not necessarily exact equiva-
E384 Test Method for Microindentation Hardness of Mate-
lents; therefore, to ensure conformance with the standard, each
rials
system shall be used independently of the other, and values
E643 Test Method for Ball Punch Deformation of Metallic
from the two systems shall not be combined.
Sheet Material
1.2.1 The ball punch deformation test called for in 8.4 is a
E1941 Test Method for Determination of Carbon in Refrac-
test that is specified in the inch-pound system, and original test
tory and Reactive Metals andTheirAlloys by Combustion
results used to produce Fig. 2 were all obtained using inch-
Analysis
pound measurements. For this reason, the graph of minimum
required cup height as a function of sheet thickness has been
3. Terminology
retained in its original inch-pound system. The graphical data
3.1 Definitions of Terms Specific to This Standard (Note that
has been scanned and a straight line fitted to the scan data. The
definitions reflect varying nomenclature from producer to
equation of this line is included in both inch-pound and SI
producer, and are not necessarily exclusive, for example,
units.
sheet/ribbon/strip; foil/ribbon/strip):
1.3 The following precautionary caveat pertains only to the
3.1.1 drawing grade, n—sheet having thickness from 0.015
test method portions of this specification: This standard does
in. [0.38 mm] to 0.060 in. [1.52 mm], intended for applications
which require drawability.
1
This specification is under the jurisdiction of ASTM Committee B10 on
Reactive and Refractory Metals and Alloys and is the direct responsibility of
2
Subcommittee B10.04 on Molybdenum and Tungsten. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2019. Published December 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1991. Last previous edition approved in 2011 as B386 – 03 (2011). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/B0386_B0386M-19. the ASTM website.
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B386/B386M−19
FIG. 1 Sample for Bending Test
3.1.5 plate, n—product 0.187 in. [4.75 mm] or more in
thickness. Depending upon starting ingot thickness and fin-
ished plate thickness, Plate may be rolled unidirectionally (in a
single direction), or cross-rolle
...