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ISO 683-9-1988
Heat-treatable steels,alloy steels and free-cutting steels-Part 9:Wrought free-cutting steels
Material Designation
Chemical Composition (%)
10SPb20
(
4Pb
)
Min
Max
11SMnPb28
(
2Pb
)
Min
Max
9S20
(
1
)
Min
Max
10S20
(
4
)
Min
Max
11SMn28
(
2
)
Min
Max
17SMn20
(
6
)
Min
Max
35S20
(
7
)
Min
Max
35SMn20
(
8
)
Min
Max
44SMn28
Min
Max
46S20
(
10
)
Min
Max
12SMn35
(
3
)
Min
Max
12SMnPb35
(
3Pb
)
Min
Max
For Reference Only