Machining
Stainless steels are often regarded as difficult to machine, and they have poorer machinability compared to regular carbon steel. The properties of stainless steels depend on the alloyed elements and the microstructure that are characterized by their high work hardening rates and poor chip breaking properties during machining. Below is information of machinability of stainless steel family. For more information about tool materials, cutting geometry, cutting oils, etc, contact us: info@cn-stainless-steel.com
Comparison of stainless steel family machinabilities
Steel type
Machinability Index
Free-machining low alloy steel
1.0
Austenitic stainless steel
-
Free-machining - 303 (1.4305)
0.85
Standard - 304 (1.4301)
0.52
Ferritic stainless steel
-
Free-machining - 430F
0.90
Standard - 430 (1.4016)
0.60
Duplex stainless steel
-
Standard - 2205 (1.4462)
0.50
Martensitic stainless steel
-
Free-machining - 416 (1.4029, 1.4005)
0.95
Standard low carbon - 410 ( 1.4006)
0.50
Standard high carbon - 440C (1.4125)
0.40
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