ASTM A100-07(2018)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: A100 − 07 (Reapproved 2018)
Standard Specification for
Ferrosilicon
This standard is issued under the fixed designation A100; 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* purchase order. Failure to comply with the general require-
ments of Specification A1025/A1025M constitutes nonconfor-
1.1 This specification covers grades of ferrosilicon for
mance with this specification. In case of conflict between the
steelmaking and foundry uses.
requirements of this specification and Specification A1025/
1.2 The values stated in inch-pound units are to be regarded
A1025M, this specification shall prevail.
as the standard. The metric equivalents of inch-pound units (SI
units) given in parentheses may be approximate.
4. Chemical Composition
1.3 This international standard was developed in accor-
4.1 The various grades shall conform to the requirements as
dance with internationally recognized principles on standard-
to chemical composition prescribed in Table 1.
ization established in the Decision on Principles for the
4.2 The manufacturer shall furnish an analysis of each
Development of International Standards, Guides and Recom-
shipment showing the silicon content and, when required, such
mendations issued by the World Trade Organization Technical
of the other elements specified in Table 1.
Barriers to Trade (TBT) Committee.
2. Referenced Documents
5. Size
2.1 ASTM Standards:
5.1 The various grades are available in sizes as listed in
A1025/A1025M Specification for Ferroalloys and Other Al-
Table 2.
loying Materials, General Requirements
5.2 The sizes listed in Table 2 are typical as shipped from
E11 Specification for Woven Wire Test Sieve Cloth and Test
the manufacturer’s plant. These alloys exhibit varying degrees
Sieves
of friability; therefore, some attrition may be expected in
E360 Test Methods for Chemical Analysis of Silicon and
transit, storage, and handling. A quantitative test is not avail-
Ferrosilicon (Withdrawn 2006)
able for rating relative friability of ferroalloys. A code system
has been developed, therefore, for this purpose, and a number
3. General Conditions of Delivery
rating for each product type is shown in the last column of
3.1 Materials furnished to this specification shall conform to
Table 2. Definitions applicable to these code numbers are given
the requirements of Specification A1025/A1025M, including
in Specification A1025/A1025M.
any supplementary requirements that are indicated in the
6. Chemical Analysis
6.1 Unless otherwise agreed upon, the chemical analysis of
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee the material shall be made in accordance with Test Methods
A01.18 on Castings.
E360.
Current edition approved March 1, 2018. Published March 2018. Originally
approved in 1925. Last previous edition approved in 2012 as A100 – 07 (2012).
6.2 If alternative methods of analysis are used, Methods
DOI: 10.1520/A0100-07R18.
E360 shall be used for referee.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.3 Where a method is not given in Methods E360 for the
Standards volume information, refer to the standard’s Document Summary page on
analysis for a particular element, the analysis shall be made in
the ASTM website.
3 accordance with a procedure agreed upon between the manu-
The last approved version of this historical standard is referenced on
www.astm.org. facturer and the purchaser.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A100 − 07 (Reapproved 2018)
7. Keywords
7.1 ferroalloy; ferrosilicon
A100 − 07 (2018)
TABLE 1 Chemical Requirements
Element Grade
C CA CB C1 C2 D DA E EA E1 F F1 F1A G GA G1 G1A
A,B
Composition, %
Silicon 74.0– 74.0– 74.0– 74.0– 74.0– 65.0– 65.0– 47.0– 47.0– 47.0– 20.0– 20.0– 20.0– 14.0– 14.0– 14.0– 14.0–
79.0 79.0 79.0 79.0 79.0 70.0 70.0 51.0 51.0 51.0 24.0 24.0 24.0 17.0 17.0 17.0 17.0
Carbon 0.10 0.10 0.10 0.10 0.10 0.10 0.10 .010 .010 0.10 0.50 0.50 0.50 0.70 0.70 0.70 0.70
Sulfur 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025
Phosphorous 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.040 0.040 0.040 0.120 0.120 0.120 0.120 0.120 0.120 0.120
Aluminum 1.50 0.50 0.10 1.00– 1.00– 1.25 0.10 1.25 0.40 1.25 1.00 1.00 1.00 0.75 0.75 0.75 0.75
1.50 1.50
Manganese 0.40 0.40 0.40 0.40 0.40 0.50 0.50 0.75 0.75 0.75 1.00 1.00 1.00 1.25 — 1.25 —
C
Calcium — — — 0.50 1.50 — — — — — — — — — — — —
Boron — — — — — — — — — 0.04– — 0.04– 0.04– — — 0.04– 0.04–
0.10 0.10 0.10 0.10 0.10
A
A single value indicates a maximum,
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A100 − 07 (Reapproved 2012) A100 − 07 (Reapproved 2018)
Standard Specification for
Ferrosilicon
This standard is issued under the fixed designation A100; 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*
1.1 This specification covers grades of ferrosilicon for steelmaking and foundry uses.
1.2 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units (SI
units) given in parentheses may be approximate.
1.3 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.
2. Referenced Documents
2.1 ASTM Standards:
A1025A1025/A1025M Specification for Ferroalloys and Other Alloying Materials, General Requirements
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E360 Test Methods for Chemical Analysis of Silicon and Ferrosilicon (Withdrawn 2006)
3. General Conditions of Delivery
3.1 Materials furnished to this specification shall conform to the requirements of Specification A1025A1025/A1025M,
including any supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements
of Specification A1025A1025/A1025M constitutes nonconformance with this specification. In case of conflict between the
requirements of this specification and Specification A1025A1025/A1025M, this specification shall prevail.
4. Chemical Composition
4.1 The various grades shall conform to the requirements as to chemical composition prescribed in Table 1.
4.2 The manufacturer shall furnish an analysis of each shipment showing the silicon content and, when required, such of the
other elements specified in Table 1.
5. Size
5.1 The various grades are available in sizes as listed in Table 2.
5.2 The sizes listed in Table 2 are typical as shipped from the manufacturer’s plant. These alloys exhibit varying degrees of
friability; therefore, some attrition may be expected in transit, storage, and handling. A quantitative test is not available for rating
relative friability of ferroalloys. A code system has been developed, therefore, for this purpose, and a number rating for each
product type is shown in the last column of Table 2. Definitions applicable to these code numbers are given in Specification
A1025A1025/A1025M.
6. Chemical Analysis
6.1 Unless otherwise agreed upon, the chemical analysis of the material shall be made in accordance with Test Methods E360.
6.2 If alternative methods of analysis are used, Methods E360 shall be used for referee.
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.18
on Castings.
Current edition approved March 1, 2012March 1, 2018. Published April 2012March 2018. Originally approved in 1925. Last previous edition approved in 20072012 as
A100 – 07.A100 – 07 (2012). DOI: 10.1520/A0100-12.10.1520/A0100-07R18.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A100 − 07 (2018)
TABLE 1 Chemical Requirements
Element Grade
C CA CB C1 C2 D DA E EA E1 F F1 F1A G GA G1 G1A
A,B
Composition, %
Silicon 74.0– 74.0– 74.0– 74.0– 74.0– 65.0– 65.0– 47.0– 47.0– 47.0– 20.0– 20.0– 20.0– 14.0– 14.0– 14.0– 14.0–
79.0 79.0 79.0 79.0 79.0 70.0 70.0 51.0 51.0 51.0 24.0 24.0 24.0 17.0 17.0 17.0 17.0
Carbon 0.10 0.10 0.10 0.10 0.10 0.10 0.10 .010 .010 0.10 0.50 0.50 0.50 0.70 0.70 0.70 0.70
Sulfur 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025
Phosphorous 0.035 0.035 0.035 0.035 0.035 0.035 0.035 0.040 0.040 0.040 0.120 0.120 0.120 0.120 0.120 0.120 0.120
Aluminum 1.50 0.50 0.10 1.00– 1.00– 1.25 0.10 1.25 0.40 1.25 1.00 1.00 1.00 0.75 0.75 0.75 0.75
1.50 1.50
Manganese 0.40 0.40 0.40 0.40 0.40 0.50 0.50 0.75 0.75 0.75 1.00 1.00 1.00 1.25 — 1.25 —
C
Calcium — — — 0.50 1.50 — — — — — — — — — — — —
Boron — — — — — — — — — 0.04– — 0.04– 0.04– — — 0.04– 0.04–
0.10 0.10 0.10 0.10 0.10
A
A single value indicates a maximum, except for calcium.
B
When shipped in 3000 lb 3000-lb containers, the average boron content of a container shall not vary from the average reported for the entire shi
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