A04.21 - Testing

SIGNIFICANCE AND USE
4.1 The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate, except in a very broad way, the origin of the graphite or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, compacted graphite irons, and the ductile (nodular) irons.  
1.2 The reference photomicrographs included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration, this test method may be used as a reference to concisely define the graphite microstructure required.  
1.3 These reference photomicrographs are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

ABSTRACT
This test method deals with gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. The purpose of the test is to determine the chilling tendencies of cast iron. The two tests are wedge test and chill test. Both tests shall be made in a core which may either be single cores or gang cores and a pouring practice shall be performed. The wedge test is generally better adapted to the higher strength gray irons. The accelerated cooling rate that shall induce the formation of a chill shall be brought about through the design of the test specimen. The chill test is better adapted to the softer grades of gray iron and should be used if the casting have a specified depth of chill. The chill in this type of test shall be induced by casting one edge of the test specimen against a metal or graphite chilled plate or block. Wedge test is simpler than chill test since in the wedge test, maintenance of chill blocks or plates is not necessary.
SCOPE
1.1 These test methods for chill testing apply to gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. Two test methods for determining the chilling tendencies of cast iron are covered as follows. For many applications, either test method will be satisfactory if test pieces of the proper dimensions are selected.  
1.1.1 Test Method A, Wedge Test—This test is adapted for the higher-strength gray irons. The accelerated cooling rate to induce the formation of a chill is brought about through the design of the test specimen. This test method is simpler than Test Method B since maintenance of chill blocks or plates is not necessary.  
1.1.2 Test Method B, Chill Test—This test is adapted for the softer grades of gray iron and should be used if the casting is to have a specified depth of chill. The chill in this type of test is induced by casting one edge of the test specimen against a metal or graphite chilled plate or block.  
1.2 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 to be part of the standard.  
1.2.1 The metric equivalency charts in Figs. 1 and 2 are provided for information only.  
in.  
mm  
in.  
mm  
in.  
mm  
1/32  
0.8  
3/8  
9.5  
1  
25.4  
1/16  
1.6  
7/16  
12.1  
11/4  
31.8  
3/32  
2.4  
1/2  
12.7  
11/2  
38.1  
1/8  
3.2  
9/16  
14.3  
13/4  
44.4  
3/16  
4.8  
11/16  
17.5  
2  
50.8  
1/4  
6.4  
3/4  
19.0  
21/2  
63.5    
5/16  
7.9  
13/16  
20.6  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

ABSTRACT
These test methods cover the details of impact testing apparatus, test specimens, and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins. The Charpy-type impact test shall be employed for testing gray and white irons. The single-blow Charpy impact test for gray and white irons shall be carried out in a pendulum-type impact machine. The test specimens shall have a plain cylindrical form, machined or ground to a smooth finish and shall conform to the specified values of diameter, length, and span. The standard notch Charpy bar impact test specimen shall be employed. Characterization of the fracture toughness of any cast iron should be based upon testing three specimens.
SCOPE
1.1 These test methods for impact testing cover the details of apparatus, test specimens, and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins.  
1.2 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 nonconformance with the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

SIGNIFICANCE AND USE
4.1 The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate, except in a very broad way, the origin of the graphite or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, compacted graphite irons, and the ductile (nodular) irons.  
1.2 The reference photomicrographs included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration, this test method may be used as a reference to concisely define the graphite microstructure required.  
1.3 These reference photomicrographs are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

ABSTRACT
This guide covers standard specification for the details of impact testing apparatus, test specimens, and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins. The Charpy-type impact test shall be employed for testing gray and white irons. The single-blow Charpy impact test for gray and white irons shall be carried out in a pendulum-type impact machine. The test specimens shall have a plain cylindrical form, machined or ground to a smooth finish and shall conform to the specified values of diameter, length, and span. The standard notch Charpy bar impact test specimen shall be employed. Characterization of the fracture toughness of any cast iron should be based upon testing three specimens.
SCOPE
1.1 These test methods for impact testing cover the details of apparatus, test specimens, and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins.  
1.2 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 nonconformance with the standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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.

ABSTRACT
This test method deals with gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. The purpose of the test is to determine the chilling tendencies of cast iron. The two tests are wedge test and chill test. Both tests shall be made in a core which may either be single cores or gang cores and a pouring practice shall be performed. The wedge test is generally better adapted to the higher strength gray irons. The accelerated cooling rate that shall induce the formation of a chill shall be brought about through the design of the test specimen. The chill test is better adapted to the softer grades of gray iron and should be used if the casting have a specified depth of chill. The chill in this type of test shall be induced by casting one edge of the test specimen against a metal or graphite chilled plate or block. Wedge test is simpler than chill test since in the wedge test, maintenance of chill blocks or plates is not necessary.
SCOPE
1.1 These test methods of chill testing apply to gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. Two test methods of determining the chilling tendencies of cast iron are covered as follows. For many applications, either test method will be satisfactory if test pieces of the proper dimensions are selected.  
1.1.1 Test Method A, Wedge Test—This test is generally better adapted to the higher-strength gray irons. The accelerated cooling rate to induce the formation of a chill is brought about through the design of the test specimen. This test method is simpler than Test Method B since maintenance of chill blocks or plates is not necessary.  
1.1.2 Test Method B, Chill Test—This test is better adapted to the softer grades of gray iron and should be used if the casting is to have a specified depth of chill. The chill in this type of test is induced by casting one edge of the test specimen against a metal or graphite chilled plate or block.  
1.2 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.  
1.2.1 The metric equivalency charts in Figs. 1 and 2 are provided for information only.
FIG. 1 Dimensions for Test Wedges
Wedge No.  
Wedge Dimensions    
B  
H  
A, deg  
Length    
in.  
mm  
in.  
mm  
in.  
mm    
W 1  
0.20  
5.1  
1.00  
25.4  
11.5  
4  
101.6  
W 2  
0.40  
10.2  
1.25  
31.8  
18  
4  
101.6  
W 3  
0.75  
19.1  
1.50  
38.1  
28  
4  
101.6  
W 31/2  
1.00  
25.4  
1.75  
44.4  
32  
5  
127.0  
W 4  
1.25  
31.8  
2.00  
50.8  
34.5  
6  
152.4  
FIG. 2 Recommended Dimensions for Test Method B Chill Test Specimens
Chill Test No.  
Recommended Dimensions, in.  
Recommended
Chill Depth
Range, 1/23 in.A    
T  
A  
B  
H  
L  
D  
d  
G    
1C  
3/16  
1/4  
1/8  
11/4  
21/2  
3/4  
1/2  
1/32  
3 to 12  
2C  
1/4  
5/16  
3/16  
11/2  
3  
7/8  
1/2  
1/32  
4 to 16  
3C  
3/8  
7/16  
5/16  
13/4  
31/2  
7/8  
1/2  
1/16  
6 to 24  
4C  
1/2  
9/16  
7/16  
2  
4  
1  
5/8  
1/16  
8 to 32  
5C  
3/4  
13/16  
11/16  
21/2  
5  
1  
5/8  
3/32  
12 to 48 (A) T/2 to 2T.  
Note 1—Casting to be made in a dry sand core.  
Note 2—Allow 3/4 in. of sand on all sides.
Metric Equivalents  
in.  
mm  
in.  
mm  
in.  
mm    
1/32  
0.8  
3/8  
9.5  
1  
25.4  
1/16  
1.6  
7/16  
12.1  
11/4  
31.8  
3/32  
2.4  
1/2  
12.7  
11/2  
38.1  
1/8  
3.2  
9/16  
14.3  
13/4  
44.4  
3/16  
4.8  
11/16  
17.5  
2  
50.8  
1/4  
6.4  
3/4  
19.0...

SIGNIFICANCE AND USE
4.1 The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate, except in a very broad way, the origin of the graphite or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, compacted graphite irons, and the ductile (nodular) irons.  
1.2 The reference photomicrographs included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration, this test method may be used as a reference to concisely define the graphite microstructure required.  
1.3 These reference photomicrographs are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

SIGNIFICANCE AND USE
4.1 The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate, except in a very broad way, the origin of the graphite or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, compacted graphite irons, and the ductile (nodular) irons.  
1.2 The reference photomicrographs included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration, this test method may be used as a reference to define concisely the graphite microstructure required.  
1.3 These reference photomicrographs are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
4.1 The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate, except in a very broad way, the origin of the graphite or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size by visual comparison to reference photomicrographs. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, compacted graphite irons, and the ductile (nodular) irons.  
1.2 The reference photomicrographs included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration, this test method may be used as a reference to define concisely the graphite microstructure required.  
1.3 These reference photomicrographs are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ABSTRACT
This test method for impact testing covers the details of apparatus, test specimens and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins. The gray and white irons shall be subjected to round bar, single-blow Charpy impact test using a pendulum-type impact machine. Characterization of the fracture toughness of any cast iron should be based upon testing at least three specimens. Either the standard notched or unnotched Charpy impact test shall be employed in testing of malleable or ductile irons. Both types of charpy bars have been designated to characterize the fracture toughness of irons.
SCOPE
1.1 These test methods for impact testing cover the details of apparatus, test specimens and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins.  
1.2 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.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  
3.1 The Charpy-type impact test shall be employed for testing gray and white irons.  
8.1 Either the standard notched or unnotched Charpy impact test shall be employed in testing of malleable or ductile irons. Selection of the type bar is dependent upon the specific material to be evaluated as defined in Section 9.  
8.2 Both types of charpy bars have been designated to characterize the fracture toughness of irons. The unnotched Charpy bar, when tested, will produce substantially higher energy values than the notch bar type. The unnotched bar is therefore specified for testing irons that have low fracture toughness characteristics.

ABSTRACT
This test method deals with gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. The purpose of the test is to determine the chilling tendencies of cast iron. The two tests are wedge test and chill test. Both tests shall be made in a core which may either be single cores or gang cores and a pouring practice shall be performed. The wedge test is generally better adapted to the higher strength gray irons. The accelerated cooling rate that shall induce the formation of a chill shall be brought about through the design of the test specimen. The chill test is better adapted to the softer grades of gray iron and should be used if the casting have a specified depth of chill. The chill in this type of test shall be induced by casting one edge of the test specimen against a metal or graphite chilled plate or block. Wedge test is simpler than chill test since in the wedge test, maintenance of chill blocks or plates is not necessary.
SCOPE
1.1 These test methods of chill testing apply to gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. Two test methods of determining the chilling tendencies of cast iron are covered as follows. For many applications either test method will be satisfactory if test pieces of the proper dimensions are selected.
1.1.1 Test Method A, Wedge Test—This test is generally better adapted to the higher strength gray irons. The accelerated cooling rate to induce the formation of a chill is brought about through the design of the test specimen. This test method is simpler than Test Method B since maintenance of chill blocks or plates is not necessary.
1.1.2 Test Method B, Chill Test—This test is better adapted to the softer grades of gray iron and should be used if the casting is to have a specified depth of chill. The chill in this type of test is induced by casting one edge of the test specimen against a metal or graphite chilled plate or block.
1.2 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.
1.2.1 The metric equivalency charts in Figs. 1 and 2 are provided for information only.

SIGNIFICANCE AND USE
The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate except in a very broad way the origin of the graphite, or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, and the ductile (nodular) irons.  
1.2 The reference standards included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration this test method may be used as a reference to define concisely the graphite microstructure required.  
1.3 These standards are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate except in a very broad way the origin of the graphite, or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, and the ductile (nodular) irons.
1.2 The reference standards included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration this test method may be used as a reference to define concisely the graphite microstructure required.
1.3 These standards are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.
This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

SIGNIFICANCE AND USE
The comparison of observed graphite particles with the structures shown in the charts give only purely descriptive information on the type, distribution, and size of the graphite in the sample being evaluated. It does not indicate except in a very broad way the origin of the graphite, or the suitability of the iron-carbon alloy for a particular service.
SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, and the ductile (nodular) irons.  
1.2 The reference standards included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration this test method may be used as a reference to define concisely the graphite microstructure required.  
1.3 These standards are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.  
1.4 This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ABSTRACT
This test method for impact testing covers the details of apparatus, test specimens and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins. The gray and white irons shall be subjected to round bar, single-blow Charpy impact test using a pendulum-type impact machine. Characterization of the fracture toughness of any cast iron should be based upon testing at least three specimens. Either the standard notched or unnotched Charpy impact test shall be employed in testing of malleable or ductile irons. Both types of charpy bars have been designated to characterize the fracture toughness of irons.
SCOPE
1.1 These test methods for impact testing cover the details of apparatus, test specimens and procedures for cast iron, including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins.
1.2 The values stated in inch-pound units are to be regarded as the standard. A companion standard, A 327M, lists values in SI units.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.3 The Charpy-type impact test shall be employed for testing gray and white irons.
1.4 Either the standard notched or unnotched Charpy impact test shall be employed in testing of malleable or ductile irons. Selection of the type bar is dependent upon the specific material to be evaluated as defined in Section .
1.5 Both types of charpy bars have been designated to characterize the fracture toughness of irons. The unnotched Charpy bar, when tested, will produce substantially higher energy values than the notch bar type. The unnotched bar is therefore specified for testing irons that have low fracture toughness characteristics.

ABSTRACT
This test method deals with gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. The purpose of the test is to determine the chilling tendencies of cast iron. The two tests are wedge test and chill test. Both tests shall be made in a core which may either be single cores or gang cores and a pouring practice shall be performed. The wedge test is generally better adapted to the higher strength gray irons. The accelerated cooling rate that shall induce the formation of a chill shall be brought about through the design of the test specimen. The chill test is better adapted to the softer grades of gray iron and should be used if the casting have a specified depth of chill. The chill in this type of test shall be induced by casting one edge of the test specimen against a metal or graphite chilled plate or block. Wedge test is simpler than chill test since in the wedge test, maintenance of chill blocks or plates is not necessary.
SCOPE
1.1 These test methods of chill testing apply to gray irons that are to be free of chill in the casting and to chilled irons that are to have a specific depth of chill in the casting. Two test methods of determining the chilling tendencies of cast iron are covered as follows. For many applications either test method will be satisfactory if test pieces of the proper dimensions are selected.
1.1.1 Test Method A, Wedge Test—This test is generally better adapted to the higher strength gray irons. The accelerated cooling rate to induce the formation of a chill is brought about through the design of the test specimen. This test method is simpler than Test Method B since maintenance of chill blocks or plates is not necessary.
1.1.2 Test Method B, Chill Test—This test is better adapted to the softer grades of gray iron and should be used if the casting is to have a specified depth of chill. The chill in this type of test is induced by casting one edge of the test specimen against a metal or graphite chilled plate or block.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, and the ductile (nodular) irons.

SCOPE
1.1 These test methods for impact testing cover the details of apparatus, test specimens and procedures for cast iron including gray iron, white iron, malleable iron, ductile iron, and austempered ductile iron, but not including chilled rolls or rolls with white iron skins.  
1.2 The values stated in inch-pound units are to be regarded as the standard. A companion standard, A 327M, lists values in SI units.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

SCOPE
1.1 These test methods for impact testing cover the details of apparatus, test specimens and procedures for cast iron including gray iron, white iron, malleable iron, ductile iron and austempered ductile iron, but not including chilled rolls or rolls with white iron skins.
1.2 The values stated in SI units are to be regarded as the standard. A companion standard, A327, lists values in inch-pound units.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

SCOPE
1.1 This test method covers the classification of graphite in cast irons in terms of type, distribution, and size. This test method is intended to be applicable for all iron-carbon alloys containing graphite particles, and may be applied to gray irons, malleable irons, and the ductile (nodular) irons.
1.2 The reference standards included in this test method are in no way to be construed as specifications. In an appropriate specification for a specific material where graphite microstructure is an important consideration this test method may be used as a reference to define concisely the graphite microstructure required.
1.3 These standards are offered primarily to permit accurate reporting of microstructures of cast irons and to facilitate the comparison of reports by different laboratories or investigators.
This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

SCOPE
1.1 This test method covers dynamic tear testing and is applicable to graphitic cast irons and establishes the transition temperature from examination of fracture appearance. Details of apparatus, specimens, and procedures are included.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
WITHDRAWN RATIONALE
This test method covers dynamic tear testing and is applicable to graphitic cast irons and establishes the transition temperature from examination of fracture appearance. Details of apparatus, specimens, and procedure are included.
Formerly under the jurisdiction of Committee A04 on Iron Castings, this test method was withdrawn in October 2004 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

SCOPE
1.1 This method covers a procedure for performing transverse bending tests on separately cast cylindrical test bars of gray cast iron.  
1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.