ASTM A144-73(1990)e1

Specification for Ferrotungsten

SCOPE
1.1 This specification covers four grades of ferrotungsten.

General Information

• Status: Historical
• Publication Date: 09-Mar-2002
• ICS: 77.100 - Ferroalloys
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys

Relations

• Replaces: ASTM A144-73(1990) - Specification for Ferrotungsten
• Effective Date: 10-Mar-2002
• Replaced By: ASTM A144-02 - Specification for Ferrotungsten
• Effective Date: 10-Mar-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
e1
Designation: A 144 – 73 (Reapproved 1990)
Standard Specification for
Ferrotungsten
This standard is issued under the fixed designation A 144; 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.
e NOTE—Editorial changes were made throughout in February 1990.
1. Scope 5. Chemical Analysis
1.1 This specification covers four grades of ferrotungsten. 5.1 The chemical analysis of the material shall be made in
accordance with the procedure for ferrotungsten as described in
2. Referenced Documents
Methods E 31 or alternative methods which will yield equiva-
2.1 ASTM Standards: lent results.
E 29 Practice for Using Significant Digits in Test Data to
5.2 If alternative methods of analysis are used, in case of
Determine Conformance with Specifications discrepancy, Methods E 31 shall be used for referee.
E 31 Methods for Chemical Analysis of Ferroalloys
5.3 Where no method is given in Methods E 31 for the
E 32 Practices for Sampling Ferroalloys and Steel Additives analysis for a particular element, the analysis shall be made in
for Determination of Chemical Composition
accordance with a procedure agreed upon between the manu-
facturer and the purchaser.
3. Ordering Information
6. Size
3.1 Orders for material under this specification shall include
the following information: 6.1 The various grades are available in the sizes listed in
3.1.1 Quantity,
Table 3.
3.1.2 Name of material, 6.2 The ferrotungsten is available in various sizes such as ⁄4
3.1.3 ASTM designation and year of issue,
by down (5 % maximum over ⁄4 in., 20 % maximum under 70
3 3
3.1.4 Grade, mesh), or ⁄8 by down (5 % maximum over ⁄8in., 20 %
3.1.5 Sizing, and
maximum under 70 mesh). The size shall be specified on the
3.1.6 Requirements for packaging, analysis reports, etc., as order.
appropriate.
7. Sampling
3.2 Although ferrotungsten is ordered by total net weight,
the customary basis of payment is per pound of contained 7.1 The material shall be sampled in accordance with
tungsten. Practices E 32.
7.2 Other methods of sampling mutually agreed upon by the
4. Chemical Composition
manufacturer and the purchaser may be used; however, in case
4.1 The various grades shall conform to the requirements as
of discrepancy, Practices E 32 shall be used for referee.
to chemical composition specified in Table 1 and Table 2.
8. Inspection
4.2 The manufacturer shall furnish an analysis of each
shipment showing the elements specified in Table 1. 8.1 The manufacturer shall afford the inspector representing
4.3 The values shown in Table 2 are expected maximums. the purchaser all reasonable facilities, without charge, to satisfy
Upon the request of the purchaser, the manufacturer shall him that the material is being furnished in accordance with this
furnish an analysis for any of these elements on a cumulative specification.
basis over a period mutually agreed upon between the manu-
9. Rejection
facturer and the purchaser.
9.1 Any claims or rejections shall be made to the manufac-
turer within 45 days from receipt of material by the purchaser.
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
10. Product Marking
A01.30 On Ferroalloys and Alloying Additives.
Current edition approved Aug. 27, 1973. Published October 1973. Originally
10.1 When the shipment is made in bulk it shall be
published as A 144 – 32 T. Last previous edition A 144 – 66.
accompanied by appropr
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