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ISO 185：2005 Grey cast iron－Classification.pdf
ISO 185:2005(E)
Contents
Page
Foreword............................................................................................................................................................ iv
Introduction ........................................................................................................................................................ v
1
2
3
4
5
6
7
7.1
7.2
7.2.1
7.2.2
7.2.3
7.3
7.4
8
8.1
8.2
8.2.1
8.2.2
8.2.3
8.3
9
9.1
9.2
9.3
9.4
10
10.1
10.2
10.3
Scope ..................................................................................................................................................... 1
Normative references ........................................................................................................................... 1
Terms and definitions........................................................................................................................... 1
Designation ........................................................................................................................................... 2
Order information ................................................................................................................................. 2
Manufacture........................................................................................................................................... 2
Requirements ........................................................................................................................................ 2
Mechanical properties .......................................................................................................................... 2
Tensile properties ................................................................................................................................. 2
Test pieces machined from separately cast samples....................................................................... 2
Test pieces machined from cast-on samples .................................................................................... 2
Test pieces cut from a casting ............................................................................................................ 2
Hardness properties ............................................................................................................................. 4
Graphite structure................................................................................................................................. 6
Sampling ................................................................................................................................................ 6
General................................................................................................................................................... 6
Tensile test ............................................................................................................................................ 6
Separately cast samples ...................................................................................................................... 6
Cast-on samples ................................................................................................................................... 7
Test pieces cut from a casting ............................................................................................................ 8
Hardness test ........................................................................................................................................ 9
Test methods....................................................................................................................................... 10
Tensile test .......................................................................................................................................... 10
Brinell hardness test .......................................................................................................................... 11
Graphite structure............................................................................................................................... 11
Alternative test procedures ............................................................................................................... 12
Retests ................................................................................................................................................. 12
Need for retests................................................................................................................................... 12
Test validity ......................................................................................................................................... 12
Non-conforming test results.............................................................................................................. 12
Annex A (informative) Additional information on mechanical and physical properties in addition
to that given in Tables 1 and 2 .......................................................................................................... 13
Annex B (informative) Additional information on the relationship between hardness and tensile
strength of grey cast irons ................................................................................................................ 15
Annex C (informative) Additional information on the relationship between tensile strength,
hardness and wall thickness of grey iron castings ........................................................................ 18
Annex D (informative) Cross-references of ISO 185 grade designations to other standard grades
of grey cast iron .................................................................................................................................. 20
Bibliography ..................................................................................................................................................... 21
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