ASTM A835/A835M-10(2020)

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
• ICS: 77.100 - Ferroalloys
• 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
• Refers: ASTM A610-79(2019) - Standard Test Methods for Sampling and Testing Ferroalloys for Determination of Size
• Effective Date: 01-Nov-2019
• Refers: ASTM A610-79(2014) - Standard Test Methods for Sampling and Testing Ferroalloys for Determination of Size
• Effective Date: 01-Oct-2014
• Refers: ASTM E11-13 - Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
• Effective Date: 01-Oct-2013
• Refers: ASTM A610-79(2009) - Standard Test Methods for Sampling and Testing Ferroalloys for Determination of Size
• Effective Date: 01-Oct-2009
• Refers: ASTM E11-09e1 - Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
• Effective Date: 01-May-2009
• Refers: ASTM A610-79(2004) - Standard Test Methods for Sampling and Testing Ferroalloys for Determination of Size
• Effective Date: 01-Oct-2004
• Refers: ASTM E11-04 - Standard Specification for Wire Cloth and Sieves for Testing Purposes
• Effective Date: 01-May-2004
• Refers: ASTM E11-95 - Standard Specification for Wire Cloth and Sieves for Testing Purposes
• Effective Date: 10-May-2001
• Refers: ASTM E11-01 - Standard Specification for Wire Cloth and Sieves for Testing Purposes
• Effective Date: 10-May-2001
• Refers: ASTM A610-79(2000) - Standard Test Methods for Sampling and Testing Ferroalloys for Determination of Size
• Effective Date: 10-Mar-2000

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 [e-mail]. 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.
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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
...