ASTM A835/A835M-84(2005)

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Designation: A 835/A 835M – 84 (Reapproved 2005)
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 (e) 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 E 11. Representative procedures for
evaluation of each lot are described in Methods A 610. Refer to Appendix X1 for applicable sieve designations (see Table X1.1).
2. Referenced Documents
2.1 ASTM Standards:
A 610 Test Methods for Sampling and Testing Ferroalloys for Determination of Size
E 11 Specification for Wire Cloth and Sieves for Testing Purposes
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.
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 Sept. 1, 2005. Published January 2006. Originally approved in 1984. Last previous edition approved in 2000 as A 835 - 84(2000).
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volume information, refer to the standard’s Document Summary page on the ASTM website.
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A 835/A 835M – 84 (2005)
A
TABLE 1 Requirements for Screened Products
Nominal Standard Maximum Allowable Maximum Allowable Friability
Size, in. Ordered Oversize Undersize Rating
Size, Code
B Size Percent Size Percent C
in. No.
Lump to Crushed Sizes:
6 8 by 4 to 10 in. 10 % through 4 in. 10 % 1–6
5 8 by 2 to 10 in. 10 % through 2 in. 10 % 1–6
4 6 by 2 to 8 in. 10 % through 2 in. 10 % 1–6
3 ⁄2 5 by 2 to 7 in. 10 % through 2 in. 10 % 1–6
3 (A) 5 by 1 to 7 in. 10 % through 1 in. 10 % 1–6
3 (B) 4 by 2 to 6 in. 10 % through 2 in. 10 % 1–6
2 ⁄2 4 by 1 to 6 in. 10 % through 1 in. 10 % 1–6
1 1 1
2 ⁄4 4by ⁄2 to 5 in. 10 %
...