ASTM A146-64(2000)

Standard Specification for Molybdenum Oxide Products

SCOPE
1.1 This specification covers three grades of molybdenum oxide, designated as A, B, and molybdic oxide briquets.  
1.2 The values stated in inch-pound units are to be regarded as the standard.

General Information

• Status: Historical
• Publication Date: 09-Mar-2000
• ICS: 77.100 - Ferroalloys
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.18 - Castings

Relations

• Replaced By: ASTM A146-04 - Standard Specification for Molybdenum Oxide Products
• Effective Date: 01-May-2004
• Referred By: ASTM A1025/A1025M-10(2020) - Standard Specification for Ferroalloys and Other Alloying Materials, General Requirements
• Effective Date: 10-Mar-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 146 – 64 (Reapproved 2000)
Standard Specification for
Molybdenum Oxide Products
This standard is issued under the fixed designation A 146; 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 (e) indicates an editorial change since the last revision or reapproval.
A
TABLE 1 Chemical Requirements
1. Scope
1.1 This specification covers three grades of molybdenum
Molybdenum Oxide
Molybdic
oxide, designated as A, B, and molybdic oxide briquets.
Oxide Briquets
Grade A Grade B
1.2 The values stated in inch-pound units are to be regarded
B
Molybdenum, min 55.0 57.0 51.6
as the standard.
Sulfur, max 0.25 0.10 0.15
C
Copper, max 1.0 1.0 0.15
2. Referenced Documents
A
For purposes of determining conformance with this specification, the reported
analysis shall be rounded to the nearest unit in the last right-hand place of figures
2.1 ASTM Standards:
used in expressing the limiting value, in accordance with the rounding method of
E 29 Practice for Using Significant Digits in Test Data to
Practice E 29.
B
Determine Conformance with Specifications
For the purposes of determining the molybdenum content of any shipment,
molybdenum shall be reported to the nearest 0.1 %, applying the same rounding
E 31 Methods for Chemical Analysis of Ferroalloys
procedure as prescribed in Footnote A.
C
Copper content may be supplied to 0.15 %, max, when requested by the
3. Ordering Information
purchaser.
3.1 Orders for material under this specification shall include
the following information:
5. Size
3.1.1 Quantity,
5.1 Molybdenum oxide is available in bags, steel drums, or
3.1.2 Name of material,
other suitable containers, each with either 5 lb (2.3 kg) or 20 lb
3.1.3 ASTM designation and year of issue,
(9.1 kg) of contained molybdenum.
3.1.4 Grade,
5.2 Molybdic oxide briquets weigh about 5 lb each and
3.1.5 Size, if appropriate, and
contain 2.5 lb (1.13 kg) of molybdenum.
3.1.6 Requirements for packaging, analysis reports, etc. as
appropriate.
6. Sampling
3.2 Although molybdenum oxide is ordered by total net
6.1 Sampling Small Bags—When packed in the standard-
weight, or contained weight, the customary basis of payment is
ized small packages, each holding contained molybdenum, the
per pound of contained molybdenum.
material shall be sampled by selecting at random one twentieth
of the bags that may bear the same manufacturing lot number,
4. Chemical Requirements
and the combined content of these bags shall be reduced and
4.1 The various grades shall conform to the requirements as
analyzed as a separate sample. When a shipment cannot be
to chemical composition specified in Tables 1 and 2.
divided by lot numbers, one twentieth of the total number of
4.2 The manufacturer shall furnish an analysis of each
bags constituting the shipment shall be selected and treated as
shipment showing the elements specified in Table 1.
one sample. The material forming a sample shall be crushed if
4.3 The values shown in Table 2 are expected maximums.
Upon request of the purchaser, the manufacturer shall furnish
A,B
TABLE 2 Supplementary Chemical Requirements
an analysis for any of these elements on a cumulative basis
over a period mutually agreed upon by the manufacturer and
Composition, %
the purchaser.
Molybdenum Oxide
Molybdic Oxide
Briquets
Grade A Grade B
Carbon trace trace 12.0 (approx)
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
Phosphorus, max 0.050 0.050 0.050
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A
A01.18 on Castings.
See Footnote A of Table 1.
B
Current edition accepted Dec. 1, 1964. Originally issued 1932. Replaces
The composition of molybdenum oxide shall be within these limits; however, an
A146–63T.
analysis of each lot is not required. The manufacturer shall supply upon request
Annual Book of ASTM Standards, Vol 14.02.
the results of an analysis for these elements on a cumulative basis over a period
Annual Book of ASTM Standards, Vol 03.05. mutually agreed upon by the manufacturer and the purchaser.
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A 146 – 64 (2000)
necessary, and in any event passed through a No. 10 (2.00-mm) describ
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