ASTM A835/A835M-10

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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:A835/A835M–84(Reapproved 2010) Designation: A835/A835M – 10
Standard Specification for
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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*
1.1 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 Thesizesandtolerancesallowforvaryingdegreesoffriabilityuponreceiptofmaterialsincesomeattritionmaybeexpected
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 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 non-conformance 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.
2. Referenced Documents
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2.1 ASTM Standards:
A610 Test Methods for Sampling and Testing Ferroalloys for Determination of Size
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Dimensional Requirements
3.1 Screened products shall conform to the sizes given in Table 1.
3.1.1 The sizes listed in Table 1 are typical as shipped from the manufacturer’s plant. Ferroalloys 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.Acode system has been developed, therefore, for this purpose, and a number rating each product
type is given.
NOTE 1—For further description of friability ratings for ferroalloys, refer to Appendix X2.
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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 AprilOct. 1, 2010. Published MayNovember 2010. Originally approved in 1984. Last previous edition approved in 20052010 as
A835/A835M - 84 (2005).(2010). DOI: 10.1520/A0835_A0835M-84R10.10.1520/A0835_A0835M-10.
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For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. 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.
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A835/A835M – 10
A
TABLE 1 Requirements for Screened Products
Nominal Standard Maximum Maximum Friability
Size, Ordered Allowable Allowable Rating
in. Size, Oversize Undersize Code
B CB
[mm] in. No.
Size in. Percent Size in. Percent
[mm]
[mm]
[mm]
Lump to Crushed Sizes:
6 8by4 to 10 10 % through 10 % 1–6
in. 4in.
6 [150] 8 [200] to 10 10 % through 10 % 1–6
by 4 [250] 4 [100]
[100]
5 8by2 to 10 10 % through 10 % 1–6
in. 2in.
5 [125] 8 [200] to 10 10 % through 10 % 1–6
by 2 [250] 2 [50]
[50]
4 6by2 to8in. 10 % through 10 % 1–6
2in.
4 [100] 6 [150] to 8 10 % through 10 % 1–6
by 2 [200] 2 [50]
[50]
1
3 ⁄2 5by2 to7in. 10 % through 10 % 1–6
2in.
1
3 ⁄2 [90] 5 [125] to 7 10 % through 10 % 1–6
by 2 [175] 2 [50]
[50]
3(A) 5by1 to7in. 10 % through 10 % 1–6
1in.
3 [75] 5 [125] to 7 10 % through 10 % 1–6
(A) by 1 [175] 1 [25]
[25]
3(B) 4by2 to6in. 10 % through 10 % 1–6
2in.
3 [75] 4 [100] to 6 10 % through 10 % 1–6
(B) by 2 [150] 2 [50]
[50]
1
2 ⁄2 4by1 to6in. 10 % through 10 % 1–6
1in.
1
2 ⁄2 [65] 4 [100] to 6 10 % through 10 % 1–6
by 1 [150] 1 [25]
[25]
1 1
2 ⁄4 4by ⁄2 to5in. 10 % through 10 % 1–6
1
⁄2 in.
1
...