ASTM B237-20

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B237 −20
Standard Specification for
1
Refined Antimony
This standard is issued under the fixed designation B237; 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 3.1.1 cake, n—the term cake as used in this specification is
defined as a cast trapezoid product.
1.1 This specification covers refined antimony in ingot, pig,
or cake form.
4. Ordering Information
1.2 The values stated in inch-pound units are to be regarded
4.1 Orders for refined antimony under this specification
as standard. The values given in parentheses are mathematical
shall include the following information:
conversions to SI units that are provided for information only
4.1.1 ASTM designation and year of issue,
and are not considered standard.
4.1.2 Quantity (weight),
1.3 This standard does not purport to address all of the
4.1.3 Name of material (Refined Antimony),
safety concerns, if any, associated with its use. It is the
4.1.4 Size and shape (Section 7),
responsibility of the user of this standard to become familiar
4.1.5 Grade (Table 1), and
with all hazards including those identified in the appropriate
4.1.6 Certification or test report, if specified (Section 14).
Safety Data Sheet (SDS) for this product/material as provided
5. Materials and Manufacture
by the manufacturer, to establish appropriate safety, health,
and environmental practices, and determine the applicability
5.1 Refined antimony shall be supplied in commercial
of regulatory limitations prior to use.
standard forms (for example, ingots, pigs, or cakes) in the
1.4 This international standard was developed in accor-
following grades:
dance with internationally recognized principles on standard-
5.1.1 Grade A,
ization established in the Decision on Principles for the
5.1.2 Grade B.
Development of International Standards, Guides and Recom-
5.2 The grades of refined antimony shall be produced by
mendations issued by the World Trade Organization Technical
any smelting and refining process from ore or recycled
Barriers to Trade (TBT) Committee.
materials to meet the chemical requirements of this specifica-
2. Referenced Documents
tion.
2.1 The following documents of the issue in effect on the
6. Composition
date of material purchase form a part of this specification to the
6.1 The refined antimony shall conform to the chemical
extent referenced herein.
composition requirements prescribed in Table 1.
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2.2 ASTM Standards:
E29 Practice for Using Significant Digits in Test Data to
7. Sizes and Shapes
Determine Conformance with Specifications
7.1 Ingots,cakes,orpigsshallweighuptoanominal100lb.
E88 Practice for Sampling Nonferrous Metals and Alloys in
(45 kg).
Cast Form for Determination of Chemical Composition
8. Physical Appearance
3. Terminology
8.1 The antimony shall be reasonably free from surface
3.1 Definitions of Terms Specific to This Standard:
corrosion or adherent foreign material.
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This specification is under the jurisdiction of ASTM Committee B02 on
9. Marking
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
B02.02 on Refined Lead, Tin, Antimony, and Their Alloys.
9.1 A brand by which the manufacturer can be identified
Current edition approved Oct. 1, 2020. Published October 2020. Originally
shall be cast into each ingot.
approved in 1995. Last previous edition approved in 2014 as B237 – 01 (2014).
DOI: 10.1520/B0237-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 10. Sampling for Chemical Analysis
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
10.1 Samples—Ten ingots shall constitute a representative
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sample of any shipment lot up to 50 000 lb. (18 700 kg) or
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B237−20
A
TABLE 1 Chemical Composition Requirements
13. Rejection and Rehearing
Composition, weight, %
13.1 Material that fails to conform to the requirements of
Element Grade A Grade B
this specification shall be rejected. Rejection should be re-
UNS M00998 UNS M00995
ported to the supplier promptly and in writing. In case of
Arsenic, max 0.05 0.10
dissatisfaction with the results of the test, the supplier may
Sulfur, max 0.10 0.10
Lead, max 0.15 0.20
make claim for a rehearing.
Other elements (for exam
...