ASTM A823 - 99(2012) Standard Specification for Statically Cast Permanent Mold Gray Iron Castings

ASTM A823 - 99(2012)

Standard Specification for Statically Cast Permanent Mold Gray Iron Castings

Active Standard ASTM A823 | Developed by Subcommittee: A04.01

Book of Standards Volume: 01.02

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Abstract

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.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. 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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A247 Test Method for Evaluating the Microstructure of Graphite in Iron Castings

A644 Terminology Relating to Iron Castings

E8 Test Methods for Tension Testing of Metallic Materials

E10 Test Method for Brinell Hardness of Metallic Materials

Military Standard

MIL-STD-129 Marking for Shipment and Storage

Federal Standard

Fed. Std. No. 123 Marking for Shipment Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.

ICS Code

ICS Number Code 77.140.80 (Iron and steel castings)

UNSPSC Code

UNSPSC Code 31100000(Castings and casting assemblies)

Referencing This Standard

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DOI: 10.1520/A0823-99R12

Citation Format

ASTM A823-99(2012), Standard Specification for Statically Cast Permanent Mold Gray Iron Castings, ASTM International, West Conshohocken, PA, 2012, www.astm.org