ASTM A100-07(2012)
(Specification)Standard Specification for Ferrosilicon
Standard Specification for Ferrosilicon
ABSTRACT
This specification covers grades of ferrosilicon used for steel-making and foundry. The grades shall conform to the required chemical composition for silicon, carbon, sulfur, phosphorous, aluminum, manganese, calcium, and boron. Sizes available of ferrosilicon for various grades are specified. Ferroalloys exhibit varying degrees of friability; therefore, some attrition may be expected in transit, storage, and handling. Chemical analysis of the material shall be made.
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.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:A100 −07 (Reapproved 2012)
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* 4. Chemical Composition
1.1 This specification covers grades of ferrosilicon for 4.1 The various grades shall conform to the requirements as
steelmaking and foundry uses. to chemical composition prescribed in Table 1.
1.2 The values stated in inch-pound units are to be regarded 4.2 The manufacturer shall furnish an analysis of each
as the standard. The metric equivalents of inch-pound units (SI shipment showing the silicon content and when required, such
units) given in parentheses may be approximate. of the other elements specified in Table 1.
2. Referenced Documents
5. Size
2.1 ASTM Standards:
5.1 The various grades are available in sizes as listed in
A1025 Specification for Ferroalloys and Other Alloying
Table 2.
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
3 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
therequirementsofSpecificationA1025,includinganysupple-
in Specification A1025.
mentary requirements that are indicated in the purchase order.
Failure to comply with the general requirements of Specifica-
6. Chemical Analysis
tion A1025 constitutes nonconformance with this specification.
6.1 Unless otherwise agreed upon, the chemical analysis of
In case of conflict between the requirements of this specifica-
the material shall be made in accordance with Test Methods
tion and Specification A1025, this specification shall prevail.
E360.
6.2 If alternative methods of analysis are used, Methods
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
E360 shall be used for referee.
A01.18 on Castings.
6.3 Where a method is not given in Methods E360 for the
Current edition approved March 1, 2012. Published April 2012. Originally
approved in 1925. Last previous edition approved in 2007 as A100 – 07. DOI:
analysis for a particular element, the analysis shall be made in
10.1520/A0100-12.
accordance with a procedure agreed upon between the manu-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
facturer and the purchaser.
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.
7. Keywords
The last approved version of this historical standard is referenced on
www.astm.org. 7.1 ferroalloy; ferrosilicon
*A Summary of Changes section appears at the end of this standard
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A100−07 (2012)
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 containers, the average boron content of a container shall not vary from the average reported for the entire shipment by more than 0.010 %.
C
Minimum.
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