ISO 4967:2013
Steel — Determination of content of non-metallic inclusions — Micrographic method using standard diagrams
ISO 4967:2013 specifies a micrographic method of determining the non-metallic inclusions in rolled or forged steel products having a reduction ratio of at least 3 using standard diagrams. This method is widely used to assess the suitability of a steel for a given use. However, since it is difficult to achieve reproducible results owing to the influence of the test operator, even with a large number of specimens, precautions should be taken when using the method.
ISO 4967:2013 also provides for the determination of non-metallic inclusions by image analysis technologies.
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Section sec_1
Section sec_2
Table tab_1
Table tab_2
Section sec_3
Figure fig_1
Figure fig_2
Figure fig_3
Table tab_a
Figure fig_4
Table tab_b
Figure fig_5
Table tab_c
Figure fig_6
Section sec_4
Section sec_5
Section sec_5.1
Figure fig_7
Section sec_5.2
Section sec_5.2.1
Section sec_5.2.2
Section sec_5.2.3
Figure fig_8
Figure fig_9
Section sec_6
Section sec_6.1
Section sec_6.2
Section sec_6.3
Section sec_7
Annex sec_A
Annex sec_B
Annex sec_B.1
Figure fig_B.1
Annex sec_B.2
Figure fig_B.2
Annex sec_C
Annex sec_C.1
Table tab_C.1
Annex sec_C.2
Table tab_C.2
Annex sec_C.3
Annex sec_C.3.1
Annex sec_C.3.2
Annex sec_C.3.3
Annex sec_C.3.4
Annex sec_C.3.5
Annex sec_C.4
Table tab_C.3
Annex sec_D
Annex sec_D.1
Annex sec_D.2
Table tab_j
Figure fig_D.1
Table tab_k
Figure fig_D.2
Table tab_l
Figure fig_D.3
Table tab_m
Figure fig_D.4
Table tab_n
Figure fig_D.5
Foreword
1 Scope
2 Principle
3 Sampling
4 Preparation of specimens
5 Determination of the content of inclusions
5.1 Method of observation
5.2 Actual examination
6 Expression of results
6.1 General
6.2 Case of method A
6.3 Case of method B
7 Test report
Annex A (normative) ISO Chart diagrams for inclusion groups A, B, C, D and DS
Annex B (informative) Assessment of a field and of oversized inclusions or stringers
Annex C (informative) Typical example of results (the total number of fields showing the index, by type of inclusion, for a given number of fields observed)
Annex D (informative) Relationship between chart diagram indices and inclusion measurements
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Section sec_1
Section sec_2
Table tab_1
Table tab_2
Section sec_3
Figure fig_1
Figure fig_2
Figure fig_3
Table tab_a
Figure fig_4
Table tab_b
Figure fig_5
Table tab_c
Figure fig_6
Section sec_4
Section sec_5
Section sec_5.1
Figure fig_7
Section sec_5.2
Section sec_5.2.1
Section sec_5.2.2
Section sec_5.2.3
Figure fig_8
Figure fig_9
Section sec_6
Section sec_6.1
Section sec_6.2
Section sec_6.3
Section sec_7
Annex sec_A
Annex sec_B
Annex sec_B.1
Figure fig_B.1
Annex sec_B.2
Figure fig_B.2
Annex sec_C
Annex sec_C.1
Table tab_C.1
Annex sec_C.2
Table tab_C.2
Annex sec_C.3
Annex sec_C.3.1
Annex sec_C.3.2
Annex sec_C.3.3
Annex sec_C.3.4
Annex sec_C.3.5
Annex sec_C.4
Table tab_C.3
Annex sec_D
Annex sec_D.1
Annex sec_D.2
Table tab_j
Figure fig_D.1
Table tab_k
Figure fig_D.2
Table tab_l
Figure fig_D.3
Table tab_m
Figure fig_D.4
Table tab_n
Figure fig_D.5
Foreword
1 Scope
2 Principle
3 Sampling
4 Preparation of specimens
5 Determination of the content of inclusions
5.1 Method of observation
5.2 Actual examination
6 Expression of results
6.1 General
6.2 Case of method A
6.3 Case of method B
7 Test report
Annex A (normative) ISO Chart diagrams for inclusion groups A, B, C, D and DS
Annex B (informative) Assessment of a field and of oversized inclusions or stringers
Annex C (informative) Typical example of results (the total number of fields showing the index, by type of inclusion, for a given number of fields observed)
Annex D (informative) Relationship between chart diagram indices and inclusion measurements