ASTM A835/A835M-10(2020)
(Specification)Standard Specification for Sizes of Ferroalloys and Alloy Additives
Standard Specification for Sizes of Ferroalloys and Alloy Additives
ABSTRACT
This specification covers standards for sizes of screened ferroalloys and alloy additives. Products shall conform to specified nominal size, standard ordered size, maximum allowable oversize, maximum allowable undersize, and friability rating. Description of the friability ratings of the ferroalloys is also provided.
SCOPE
1.1 This specification covers standard nominal sizes and size tolerances of screened ferroalloy and alloy additive products. This specification provides a range of sizes as referenced in all ASTM specifications for ferroalloys and alloy additives.
1.2 The sizes and tolerances allow for varying degrees of friability upon receipt of material since some attrition may be expected in transit, storage, and handling.
1.3 Specifications of sieve sizes used to define tolerances are listed in Specification E11. Representative procedures for evaluation of each lot are described in Test Methods A610. Refer to Appendix X1 for applicable sieve designations (see Table X1.1).
1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.4.1 This specification is expressed in both inch-pound units and in SI units (within the text, the SI units are shown in brackets); however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply.
1.5 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.
General Information
- Status
- Published
- Publication Date
- 29-Feb-2020
- Technical Committee
- A01 - Steel, Stainless Steel and Related Alloys
- Drafting Committee
- A01.18 - Castings
Relations
- Replaces
ASTM A835/A835M-10(2015) - Standard Specification for Sizes of Ferroalloys and Alloy Additives - Effective Date
- 01-Mar-2020
- Effective Date
- 01-Nov-2019
- Effective Date
- 01-Oct-2014
- Effective Date
- 01-Oct-2013
- Effective Date
- 01-Oct-2009
- Effective Date
- 01-May-2009
- Effective Date
- 01-Oct-2004
- Effective Date
- 01-May-2004
- Effective Date
- 10-May-2001
- Effective Date
- 10-May-2001
- Effective Date
- 10-Mar-2000
Overview
ASTM A835/A835M-10(2020): Standard Specification for Sizes of Ferroalloys and Alloy Additives provides internationally recognized requirements for the sizing and friability of screened ferroalloy and alloy additive products. Developed by ASTM International, this specification supports consistency and quality in the delivery and use of ferroalloys-materials critical to steelmaking and metallurgical industries. The standard defines nominal sizes, permissible size tolerances, and rating codes for friability, ensuring products meet the needs of manufacturing and processing operations.
Key Topics
Nominal Size and Tolerances
The standard enumerates nominal particle sizes and their allowable range for both lump and crushed forms of ferroalloys and alloy additives. Tolerances allow for some degree of size variation due to attrition during transit, storage, or handling.Screening and Sieve Standards
Size definitions and tolerances rely on standard sieve sizes, as detailed in ASTM Specification E11, to classify materials. These sieves ensure consistent screening and sizing techniques across facilities and suppliers.Friability Ratings
ASTM A835/A835M introduces a rating code system (1-6) to describe the susceptibility of ferroalloy products to breakage or degradation during handling. This recognizes that some materials are more prone to fragmentation and the creation of fines, impacting usage and downstream processing.Dual Unit Standardization
The specification provides all measurements in both inch-pound and SI units, reflecting the requirements of global trade and ensuring broad applicability for international buyers and suppliers.
Applications
Steel and Metallurgical Industries
The standard is commonly referenced for specifying, purchasing, and quality-checking ferroalloys and alloy additives used as deoxidizers, desulfurizers, or alloying agents in steel production.Supply Chain Consistency
By stipulating size and friability requirements, ASTM A835/A835M helps suppliers and manufacturers maintain consistent product quality, reduce material losses, and ensure compatibility with automated handling systems.Materials Testing and Inspection
Metallurgical laboratories use the standard as a basis for sampling, testing, and verifying shipments of ferroalloy materials, minimizing disputes and ensuring contractual compliance.Global Trade and Regulatory Compliance
Satisfying WTOTBT (World Trade Organization Technical Barriers to Trade) principles, this specification facilitates international commerce and helps meet regulatory requirements for material traceability and standardization.
Related Standards
- ASTM E11: Specification for Woven Wire Test Sieve Cloth and Test Sieves, which provides the reference for sieve sizes used in defining ferroalloy size tolerances.
- ASTM A610: Test Methods for Sampling and Testing Ferroalloys for Determination of Size, offering procedures for evaluating the size of ferroalloy and alloy additive materials.
Keywords
ASTM A835, ferroalloys, alloy additives, size specification, friability rating, screened products, ASTM standards, steelmaking, sieve size, metallurgical additives, material tolerances, international trade compliance.
This concise overview of ASTM A835/A835M-10(2020) highlights its value in promoting quality, consistency, and efficiency in the sourcing and use of ferroalloys and alloy additives across global supply chains and industrial applications. For more detailed requirements and size tables, refer to the full ASTM A835/A835M-10(2020) document.
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Frequently Asked Questions
ASTM A835/A835M-10(2020) is a technical specification published by ASTM International. Its full title is "Standard Specification for Sizes of Ferroalloys and Alloy Additives". This standard covers: ABSTRACT This specification covers standards for sizes of screened ferroalloys and alloy additives. Products shall conform to specified nominal size, standard ordered size, maximum allowable oversize, maximum allowable undersize, and friability rating. Description of the friability ratings of the ferroalloys is also provided. SCOPE 1.1 This specification covers standard nominal sizes and size tolerances of screened ferroalloy and alloy additive products. This specification provides a range of sizes as referenced in all ASTM specifications for ferroalloys and alloy additives. 1.2 The sizes and tolerances allow for varying degrees of friability upon receipt of material since some attrition may be expected in transit, storage, and handling. 1.3 Specifications of sieve sizes used to define tolerances are listed in Specification E11. Representative procedures for evaluation of each lot are described in Test Methods A610. Refer to Appendix X1 for applicable sieve designations (see Table X1.1). 1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.4.1 This specification is expressed in both inch-pound units and in SI units (within the text, the SI units are shown in brackets); however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. 1.5 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.
ABSTRACT This specification covers standards for sizes of screened ferroalloys and alloy additives. Products shall conform to specified nominal size, standard ordered size, maximum allowable oversize, maximum allowable undersize, and friability rating. Description of the friability ratings of the ferroalloys is also provided. SCOPE 1.1 This specification covers standard nominal sizes and size tolerances of screened ferroalloy and alloy additive products. This specification provides a range of sizes as referenced in all ASTM specifications for ferroalloys and alloy additives. 1.2 The sizes and tolerances allow for varying degrees of friability upon receipt of material since some attrition may be expected in transit, storage, and handling. 1.3 Specifications of sieve sizes used to define tolerances are listed in Specification E11. Representative procedures for evaluation of each lot are described in Test Methods A610. Refer to Appendix X1 for applicable sieve designations (see Table X1.1). 1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.4.1 This specification is expressed in both inch-pound units and in SI units (within the text, the SI units are shown in brackets); however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. 1.5 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.
ASTM A835/A835M-10(2020) is classified under the following ICS (International Classification for Standards) categories: 77.100 - Ferroalloys. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM A835/A835M-10(2020) has the following relationships with other standards: It is inter standard links to ASTM A835/A835M-10(2015), ASTM A610-79(2019), ASTM A610-79(2014), ASTM E11-13, ASTM A610-79(2009), ASTM E11-09e1, ASTM A610-79(2004), ASTM E11-04, ASTM E11-95, ASTM E11-01, ASTM A610-79(2000). Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM A835/A835M-10(2020) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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: A835/A835M −10 (Reapproved 2020)
Standard Specification for
Sizes of Ferroalloys and Alloy Additives
This standard is issued under the fixed designationA835/A835M; 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 1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This specification covers standard nominal sizes and
ization established in the Decision on Principles for the
size tolerances of screened ferroalloy and alloy additive
Development of International Standards, Guides and Recom-
products. This specification provides a range of sizes as
mendations issued by the World Trade Organization Technical
referenced in allASTM specifications for ferroalloys and alloy
Barriers to Trade (TBT) Committee.
additives.
1.2 The sizes and tolerances allow for varying degrees of
2. Referenced Documents
friability upon receipt of material since some attrition may be
2.1 ASTM Standards:
expected in transit, storage, and handling.
A610 TestMethodsforSamplingandTestingFerroalloysfor
1.3 Specifications of sieve sizes used to define tolerances
Determination of Size
are listed in Specification E11. Representative procedures for
E11 Specification for Woven Wire Test Sieve Cloth and Test
evaluation of each lot are described in Test Methods A610.
Sieves
Refer to Appendix X1 for applicable sieve designations (see
Table X1.1).
3. Dimensional Requirements
1.4 Units—The values stated in either SI units or inch-
3.1 Screened products shall conform to the sizes given in
pound units are to be regarded separately as standard. The
Table 1.
values stated in each system may not be exact equivalents;
3.1.1 The sizes listed in Table 1 are typical as shipped from
therefore, each system shall be used independently of the other.
the manufacturer’s plant. Ferroalloys exhibit varying degrees
Combining values from the two systems may result in noncon-
of friability; therefore, some attrition may be expected in
formance with the standard.
transit, storage, and handling. A quantitative test is not avail-
1.4.1 This specification is expressed in both inch-pound
able for rating relative friability of ferroalloys. A code system
units and in SI units (within the text, the SI units are shown in
has been developed, therefore, for this purpose, and a number
brackets); however, unless the purchase order or contract
rating each product type is given.
specifies the applicable M specification designation (SI units),
NOTE 1—For further description of friability ratings for ferroalloys,
the inch-pound units shall apply.
refer to Appendix X2.
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. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2020. Published March 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1984. Last previous edition approved in 2015 as A835/A835M – 10 Standards volume information, refer to the standard’s Document Summary page on
(2015). DOI: 10.1520/A0835_A0835M-10R20. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A835/A835M − 10 (2020)
A
TABLE 1 Requirements for Screened Products
Maximum Allowable Oversize Maximum Allowable Undersize
Standard Ordered Friability Rating
Nominal Size, in. [mm]
B
Size, in. [mm] Code No.
Size, in. [mm] Percent Size, in. [mm] Percent
Lump to Crushed Sizes:
6 [150] 8 [200] by 4 [100] to 10 [250] 10 % through 4 [100] 10 % 1–6
5 [125] 8 [200] by 2 [50] to 10 [250] 10 % through 2 [50] 10 % 1–6
4 [100] 6 [150] by 2 [50] t
...
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