ASTM A823-99(2019)
(Specification)Standard Specification for Statically Cast Permanent Mold Gray Iron Castings
Standard Specification for Statically Cast Permanent Mold Gray Iron Castings
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.
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.
1.4 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.
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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:A823 −99 (Reapproved 2019)
Standard Specification for
1
Statically Cast Permanent Mold Gray Iron Castings
This standard is issued under the fixed designation A823; 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 3. Terminology
1.1 This specification covers gray iron castings that are
3.1 Definitions for many terms common to iron castings are
statically cast in permanent molds.
found in Terminology A644. A classification of graphite
structure is found in Test Method A247.
1.2 No precise quantitative relationship can be stated be-
tweenthepropertiesoftheironinvariouslocationsofthesame
4. Classification
castingorbetweenthepropertiesofacastingandthoseofatest
specimen cast from the same iron (see Appendix X1).
4.1 Castings ordered and produced under this specification
1.3 The values stated in inch-pound units are to be regarded
are classified into a number of grades based on the properties
as standard. The values given in parentheses are mathematical of separately cast test bars.The test bar shall be selected on the
conversions to SI units that are provided for information only
basis of the controlling section size of the casting (see 9.1 and
and are not considered standard. 9.2 and Table 1).
1.4 This international standard was developed in accor-
4.2 Castings may be produced in the as-cast state provided
dance with internationally recognized principles on standard-
the requirements of this standard in Table 1 are met. However,
ization established in the Decision on Principles for the
annealing or normalizing heat treatments are usual and cus-
Development of International Standards, Guides and Recom-
tomary and are a basis for classification.
mendations issued by the World Trade Organization Technical
4.3 The grades are designated A for annealed or N for
Barriers to Trade (TBT) Committee.
normalized.This is followed by an S oraCto designate a solid
oracoredcasting,followedbyanA,B,C,orStodesignatethe
2. Referenced Documents
test bar to be poured with the castings. Examples of proper
2
2.1 ASTM Standards:
designations are as follows:
A247 Test Method for Evaluating the Microstructure of
Permanent Mold Castings, ASTM Specification A823,
Graphite in Iron Castings
Grade N-SB
A644 Terminology Relating to Iron Castings
Permanent Mold Castings, ASTM Specification A823,
E8/E8M Test Methods for Tension Testing of Metallic Ma-
Grade A-CC
terials
E10 Test Method for Brinell Hardness of Metallic Materials
3
5. Ordering Information
2.2 Federal Standard:
Fed. Std. No. 123 Marking for Shipment
5.1 Orders for material to this specification shall include the
3
2.3 Military Standard: following information:
MIL-STD-129 Marking for Shipment and Storage
5.1.1 ASTM designation number and year of issue.
5.1.2 Grade of iron required (see Section 4 and Table 1).
5.1.3 The size of the separately cast test bar (letter classifi-
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron
cationA, B, C, or S) which best represents the thickness of the
CastingsandisthedirectresponsibilityofSubcommitteeA04.01onGreyandWhite
Iron Castings. controlling section of the casting (see 4.1 and Table 2).
Current edition approved Nov. 1, 2019. Published November 2019. Originally
5.1.4 Location for Brinell Hardness determination (see
approved in 1984. Last previous edition approved in 2012 as A823 – 99 (2012).
10.1.1).
DOI: 10.1520/A0823-99R19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1.5 Lot size (see Section 16).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1.6 Special requirements (see Section 17).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
5.1.7 Special preparation for delivery (see Section 22).
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
5.1.8 Saving tested specimens or unbroken test bars (see
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
www.dodssp.daps.mil. 19.1.1).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A823−99 (2019)
TABLE 1 Permanent Mold Gray Iron Specifications
9.2 The test bar selected shall be based on the controlling
Tensile Strength, min, section size of the casting. This shall be determined by the
Grade BHN
A
ksi (MPa)
dimensions of the largest cylinde
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A823 − 99 (Reapproved 2019)
Standard Specification for
1
Statically Cast Permanent Mold Gray Iron Castings
This standard is issued under the fixed designation A823; 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 3. Terminology
1.1 This specification covers gray iron castings that are
3.1 Definitions for many terms common to iron castings are
statically cast in permanent molds.
found in Terminology A644. A classification of graphite
structure is found in Test Method A247.
1.2 No precise quantitative relationship can be stated be-
tween the properties of the iron in various locations of the same
4. Classification
casting or between the properties of a casting and those of a test
specimen cast from the same iron (see Appendix X1).
4.1 Castings ordered and produced under this specification
1.3 The values stated in inch-pound units are to be regarded are classified into a number of grades based on the properties
as standard. The values given in parentheses are mathematical
of separately cast test bars. The test bar shall be selected on the
conversions to SI units that are provided for information only basis of the controlling section size of the casting (see 9.1 and
and are not considered standard.
9.2 and Table 1).
1.4 This international standard was developed in accor-
4.2 Castings may be produced in the as-cast state provided
dance with internationally recognized principles on standard-
the requirements of this standard in Table 1 are met. However,
ization established in the Decision on Principles for the
annealing or normalizing heat treatments are usual and cus-
Development of International Standards, Guides and Recom-
tomary and are a basis for classification.
mendations issued by the World Trade Organization Technical
4.3 The grades are designated A for annealed or N for
Barriers to Trade (TBT) Committee.
normalized. This is 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
2. Referenced Documents
test bar to be poured with the castings. Examples of proper
2
2.1 ASTM Standards:
designations are as follows:
A247 Test Method for Evaluating the Microstructure of
Permanent Mold Castings, ASTM Specification A823,
Graphite in Iron Castings
Grade N-SB
A644 Terminology Relating to Iron Castings
Permanent Mold Castings, ASTM Specification A823,
E8/E8M Test Methods for Tension Testing of Metallic Ma-
Grade A-CC
terials
E10 Test Method for Brinell Hardness of Metallic Materials
3
5. Ordering Information
2.2 Federal Standard:
Fed. Std. No. 123 Marking for Shipment
5.1 Orders for material to this specification shall include the
3
2.3 Military Standard: following information:
MIL-STD-129 Marking for Shipment and Storage
5.1.1 ASTM designation number and year of issue.
5.1.2 Grade of iron required (see Section 4 and Table 1).
5.1.3 The size of the separately cast test bar (letter classifi-
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron
cation A, B, C, or S) which best represents the thickness of the
Castings and is the direct responsibility of Subcommittee A04.01 on Grey and White
controlling section of the casting (see 4.1 and Table 2).
Iron Castings.
Current edition approved Nov. 1, 2019. Published November 2019. Originally
5.1.4 Location for Brinell Hardness determination (see
approved in 1984. Last previous edition approved in 2012 as A823 – 99 (2012).
10.1.1).
DOI: 10.1520/A0823-99R19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1.5 Lot size (see Section 16).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1.6 Special requirements (see Section 17).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
5.1.7 Special preparation for delivery (see Section 22).
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
5.1.8 Saving tested specimens or unbroken test bars (see
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
www.dodssp.daps.mil. 19.1.1).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A823 − 99 (2019)
TABLE 1 Permanent Mold Gray Iron Specifications
9.2 The test bar selected shall be based on the controlling
Tensile Strength, min, section size of the casting. This shall be determined by the
Grade BHN
A
ksi (MPa)
dimensions of the largest cylinder that will fit into the control-
Uncored—Annealed
ling section of the casting with
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
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: A823 − 99 (Reapproved 2012) A823 − 99 (Reapproved 2019)
Standard Specification for
1
Statically Cast Permanent Mold Gray Iron Castings
This standard is issued under the fixed designation A823; 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 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.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A247 Test Method for Evaluating the Microstructure of Graphite in Iron Castings
A644 Terminology Relating to Iron Castings
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E10 Test Method for Brinell Hardness of Metallic Materials
3
2.2 Federal Standard:
Fed. Std. No. 123 Marking for Shipment
3
2.3 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
3. Terminology
3.1 Definitions for many terms common to iron castings are found in Terminology A644. A classification of graphite structure
is found in Test Method A247.
4. Classification
4.1 Castings ordered and produced under this specification are classified into a number of grades based on the properties of
separately cast test bars. The test bar shall be selected on the basis of the controlling section size of the casting (see 9.1 and 9.2
and Table 1).
4.2 Castings may be produced in the as cast as-cast state provided the requirements of this standard in Table 1 are met. However,
annealing or normalizing heat treatments are usual and customary and are a basis for classification.
4.3 The grades are designated A for annealed or N for normalized. This is 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. Examples of proper designations are
as follows:
Permanent Mold Castings, ASTM Specification A823, Grade N-SB
Permanent Mold Castings, ASTM Specification A823, Grade A-CC
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron Castings and is the direct responsibility of Subcommittee A04.01 on Grey and White Iron
Castings.
Current edition approved Oct. 1, 2012Nov. 1, 2019. Published November 2012November 2019. Originally approved in 1984. Last previous edition approved in 20082012
as A823 – 99 (2012). (2008). DOI: 10.1520/A0823-99R12.10.1520/A0823-99R19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
A823 − 99 (2019)
TABLE 1 Permanent Mold Gray Iron Specifications
Tensile Strength, min,
Grade BHN
A
ksi (MPa)
Uncored—Annealed
A-SA 30 000 (207) 163–207
A-SB 25 000 (172) 163–207
A-SC 20 000 (138) 163–207
A-SS 18 000 (124) 143–207
Cored—Annealed
A-CA 30 000 (207) 143–207
A-CB 25 000 (172) 143–207
A-CC 20 000 (138) 143–207
Uncored—Normalized
N-SA 30 000 (207) 170–229
N-SB 25 000 (172) 170–229
N-SC 20 000 (138) 170–229
N-SS 18 000 (124) 149–229
Cored—Normalized
N-CA 30 000 (207) 170–229
N-CB 25 000 (172) 149–229
N-CC 20 000 (138) 149–229
A
Refer to Fig. X1.1 for the relationship between tensile strength and section size.
5. Ordering Informati
...
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