ASTM A101-04

Standard Specification for Ferrochromium

ABSTRACT
This specification covers two types of ferrochromium designated as high carbon and low carbon, the latter including nitrogen-bearing and vacuum grades. The grades which are available in different sizes shall conform to the required chemical composition for chromium, carbon, silicon, sulfur, phosphorus, and nitrogen.
SCOPE
1.1 This specification covers two types of ferrochromium designated as high carbon and low carbon, the latter including nitrogen-bearing and vacuum grades.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 30-Apr-2004
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.18 - Castings

Relations

• Replaces: ASTM A101-93(2000) - Standard Specification for Ferrochromium
• Effective Date: 01-May-2004
• Replaced By: ASTM A101-04(2009) - Standard Specification for Ferrochromium
• Effective Date: 01-Oct-2009
• Referred By: ASTM E363-23 - Standard Test Methods for Chemical Analysis of Chromium and Ferrochromium
• Effective Date: 01-May-2004
• Referred By: ASTM A1025/A1025M-10(2020) - Standard Specification for Ferroalloys and Other Alloying Materials, General Requirements
• Effective Date: 01-May-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A101 – 04
Standard Specification for
1
Ferrochromium
This standard is issued under the fixed designation A101; 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* In case of conflict between the requirements of this specifica-
tion and Specification A1025, this specification shall prevail.
1.1 This specification covers two types of ferrochromium
designated as high carbon and low carbon, the latter including
4. Chemical Composition
nitrogen-bearing and vacuum grades.
4.1 The grades shall conform to the requirements as to
1.2 The values stated in inch-pound units are to be regarded
chemical composition specified in Table 1. The manufacturer
as the standard. The SI units given in parentheses are for
shall furnish an analysis of each shipment showing the ele-
information only.
ments specified in Table 1.
2. Referenced Documents
5. Size
2
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
E363 Test Methods for Chemical Analysis of Chromium
the manufacturer’s plant. These alloys exhibit varying degrees
and Ferrochromium
of friability; therefore, some attrition may be expected in
3. General Conditions for Delivery transit, storage, and handling. A quantitative test is not avail-
able for rating relative friability of ferroalloys. A code system
3.1 Materials furnished to this specification shall conform to
has been developed, therefore, for this purpose, and a number
the requirements of SpecificationA1025, including any supple-
rating for each product type is shown in the last column of
mentary requirements that are indicated in the purchase order.
Table 2. Definitions applicable to these code numbers are given
Failure to comply with the general requirements of Specifica-
in Specification A1025.
tionA1025 constitutes nonconformance with this specification.
6. ChemicalAnalysis
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
6.1 The chemical analysis method shall be agreed upon by
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
the purchaser and supplier.
A01.18 on Castings.
6.2 In cases of discrepancy, Test Methods E363 shall be
Current edition approved May 1, 2004. Published May 2004. Originally
approved in 1925. Last previous edition approved in 1993 as A101 – 93 (2000). used for referee purposes.
DOI: 10.1520/A0101-04.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7. Keywords
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
7.1 ferroalloys; ferrochromium; high carbon; low carbon;
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. nitrogen-bearing; vacuum low carbon
*ASummary 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.
1

---------------------- Page: 1 ----------------------
A101 – 04
TABLE 1 Chemical Requirements
Composition, %
Type Ferrochromium
Sulfur, Phosphorus,
Grade Chromium Carbon Silicon Nitrogen
max max
High carbon A 51.0–56.0 6.0–8.0 6.0 max 0.040 0.030 .
B 56.0–62.0 6.0–8.0 8.0–14.0 0.050 0.030 .
C 62.0 min 6.0–8.0 3.0 max 0.050 0.030 .
Low carbon A 60.0–67.0 0.025 max 1.0–8.0 0.025 0.030 . . .
B 67.0–75.0 0.025 max 1.0 max 0.025 0.030 . . .
C 67.0–75.0 0.050 max 1.0 max 0.025 0.030 . . .
D 67.0–75.0 0.75 max 1.0 max 0.025 0.030 . . .
Vacuum low carbon E 66.0–70.0 0.015 max 2.0 max 0.030 0.030 .
G 63.0–68.0 0.050 max 2.0 max 0.030 0.030 5.0–6.5
Nitrogen bearing 62.0–70.0 0.10 max 1.0 max 0.025 0.030 1.0–5.0
TABLE 2 Standard Sizes and Tolerances
Friability
Product Standard Sizes Tolerances
Ratings
Ferrochromium:
High-carbon 8 in. (200 mm) by 4 in. (100 mm) 10 in. (250 mm), max 10 %, max, passing 4-in. (100-mm) sieve 4
6 in. (150 mm) by down 10 %, max, retained on 6-in. (150-mm) sieve
5 in. (125 mm) by 2 in. (50 mm) 10 %, max, retained on 5-in. (125-mm) sieve 10 %, max, passing 2-in. (50-mm) sieve
1
4 in. (100 mm) by in. (12.5 mm) 10 %, max, retained on 4-in. (100-mm) sieve 10 %, max, passing ⁄2-in. (12.5-mm) sieve
3 in. (75 mm) by 1 in. (25 mm) 10 %, max, retained on 3-in. (75-mm) sieve 10 %, max, passing 1-in. (25-mm) sieve
1 1
3 in. (75 mm) by ⁄4 in. (6.3 mm) 10 %, max, retained on 3-in. (75-mm) sieve 10 %, max, passing ⁄4-in. (6.3-mm) sieve
1 1
⁄4 in. (6.3 mm) by down 5 %, max, retained on ⁄4-in. (6.3-mm)
...

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: A 101 – 04
Standard Specification for
1
Ferrochromium
This standard is issued under the fixed designation A 101; 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.
1. Scope*
1.1 This specification covers two types of ferrochromium designated as high carbon and low carbon, the latter including
nitrogen-bearing and vacuum grades.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for
information only.
2. Referenced Documents
2
2.1 ASTM Standards:
A 1025 Specification for Ferroalloys, Common Requirements
E 363 Test Methods for Chemical Analysis of Chromium and Ferrochromium
3. General Conditions for Delivery
3.1 Materials furnished to this specification shall conform to the requirements of Specification A 1025, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements of
Specification A 1025 constitutes nonconformance with this specification. In case of conflict between the requirements of this
specification and Specification A 1025, this specification shall prevail.
4. Chemical Composition
4.1 The grades shall conform to the requirements as to chemical composition specified in Table 1. The manufacturer shall
furnish an analysis of each shipment showing the 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
producttypeisshowninthelastcolumnofTable2.DefinitionsapplicabletothesecodenumbersaregiveninSpecificationA 1025.
6. ChemicalAnalysis
6.1 The chemical analysis method shall be agreed upon by the purchaser and supplier.
6.2 In cases of discrepancy, Test Methods E 363 shall be used for referee purposes.
7. Keywords
7.1 ferroalloys; ferrochromium; high carbon; low carbon; nitrogen-bearing; vacuum low carbon
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel, and RelatedAlloys and is the direct responsibility of SubcommitteeA01.18
on Castings.
Current edition approved May 1, 2004. Published May 2004. Originally approved in 1925. Last previous edition approved in 1993 as A 101 – 93 (2000).
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary 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.
1

---------------------- Page: 1 ----------------------
A 101–04
TABLE 1 Chemical Requirements
Composition, %
Type Ferrochromium
Sulfur, Phosphorus,
Grade Chromium Carbon Silicon Nitrogen
max max
High carbon A 51.0–56.0 6.0–8.0 6.0 max 0.040 0.030 .
B 56.0–62.0 6.0–8.0 8.0–14.0 0.050 0.030 .
C 62.0 min 6.0–8.0 3.0 max 0.050 0.030 .
Low carbon A 60.0–67.0 0.025 max 1.0–8.0 0.025 0.030 . . .
B 67.0–75.0 0.025 max 1.0 max 0.025 0.030 . . .
C 67.0–75.0 0.050 max 1.0 max 0.025 0.030 . . .
D 67.0–75.0 0.75 max 1.0 max 0.025 0.030 . . .
Vacuum low carbon E 66.0–70.0 0.015 max 2.0 max 0.030 0.030 .
G 63.0–68.0 0.050 max 2.0 max 0.030 0.030 5.0–6.5
Nitrogen bearing 62.0–70.0 0.10 max 1.0 max 0.025 0.030 1.0–5.0
TABLE 2 Standard Sizes and Tolerances
Friability
Product Standard Sizes Tolerances
Ratings
Ferrochromium:
High-carbon 8 in. (200 mm) by 4 in. (100 mm) 10 in. (250 mm), max 10 %, max, passing 4-in. (100-mm) sieve 4
6 in. (150 mm) by down 10 %, max, retained on 6-in. (150-mm) sieve
5 in. (125 mm) by 2 in. (50 mm) 10 %, max, retained on 5-in. (125-mm) sieve 10 %, max, passing 2-in. (50-mm) sieve
1
4 in. (100 mm) by in. (12.5 mm) 10 %, max, retained on 4-in. (100-mm) sieve 10 %, max, passing ⁄2-in. (12.5-mm) sieve
3 in. (75 mm) by 1 in. (25 mm) 10 %, max, retained on 3-in. (75-mm) sieve 10 %, max, passing 1-in. (2
...