How to select the right turning grade for Steel materials?
A mapping of Steel Turning grades and how to select the right one.Material grouping and Grades references for Steels
SMG P (Steel) is divided in 10 sub-groups, to capture specific material characteristics and reduce the complexity of every specific material.
Based on grade portfolio, you can find a starting grade recommendation which can be optimized depending on the application, based on below mentioned grade mapping.
| SMG | Description | Reference |
| P1 | Free-cutting steels | 11SMn30 |
| P2 | Low-alloy ferritic general structural steel;
C<0,25% wt | S235JR |
| P3 | Ferritic & Ferritic / pearlitic general structural steels;
C<0,25% wt | 16MnCr5 |
| P4 | Low-alloy general structural steels; 0,25% wt<C<0,67% wt | C45E |
| P5 | Structural steels;
0,25% wt<C<0,67% wt | 42CrMo4 |
| P6 | Low-alloy through-hardening steels;
C>0,67% | C100S |
| P7 | Through-hardening steels;
C>0,67% | 100Cr6 |
| P8 | Tools steels & High-Speed Steels (HSS) | X40CrMoV51 |
| P11 | Ferritic & martensitic stainless steels | X20Cr13 |
| P12 | Maraging and precipitation-hardening stainless steels | X5CrNiCuNb164 |
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Mapping of Steel Turning grades
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