ASTM-A823 › Historical Revision Information
Standard Specification for Statically Cast Permanent Mold Gray Iron Castings
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This specification covers gray iron castings that are statically cast in permanent molds. Castings under this specification are classified into a number of grades (A-SA, A-SB, A-SC, A-SS, A-CA, A-CB, A-CC, N-SA, N-SB, N-SC,N-SS, N-CA, N-CB and N-CC) based on the properties of separately cast test bars. The grades are designated A for annealed or N for normalized; followed by an S or a C to designate a solid or a cored casting; followed by an A, B, C, or S to designate the test bar to be poured with the castings. The cast test bar shall be selected on the basis of the controlling section size of the casting and shall have the specified dimensions (diameter and length). Castings may be produced in the as cast state provided the tensile strength and Brinell hardness requirements are met. The chemical composition and heat treatment shall be such as to produce these mechanical requirements as well. A suitable permanent mold design for separately cast test bars is described and the tension test requirements are detailed.
Scope
1.1 This specification covers gray iron castings that are statically cast in permanent molds.
1.2 No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting or between the properties of a casting and those of a test specimen cast from the same iron (see Appendix X1).
1.3 The values stated in inch-pound units are to be regarded as the standard.
Keywords
chemical composition; gray iron; hardness; heat treatment; iron castings; statically cast permanent mold; tensile strength; ICS Number Code 77.140.80 (Iron and steel castings)
To find similar documents by ASTM Volume:
01.02 (Ferrous Castings; Ferroalloys)
To find similar documents by classification:
77.140.80 (Iron and steel castings)
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Document Number
ASTM-A823-99(2003)
Revision Level
1999 R03 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Nov. 1, 2003
Document Type
Specification
Page Count
7 pages
Committee Number
A04.01