How to select the right turning grade for Stainless Steel materials?

A mapping of Stainless Steel Turning grades and how to select the right one.

Material grouping and Grades references for Stainless Steel

SMG M (Stainless Steel) is divided in 5 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
M1	Free-cutting austenitic stainless steels	X 8 CrNiS 18 9
M2	Low-alloy austenitic stainless steels	X 5 CrNi 18 10
M3	Medium-alloy austenitic stainless steels	X 2 CrNiMo 18 14 3
M4	High-alloy austenitic and duplex stainless steels	X 2 CrNiMoN 22 5 3
M5	Difficult high-alloy austenitic and duplex stainless steels	X 2 CrNiMoN 25 7 4

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Mapping of Stainless Steel Turning grades

stainless steel turning grade

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