Free machining austenitic stainless steel with better machinability than standard grades 

Austenitic Stainless Steel

COMPARISON

In order to understand the level of advantages that Maxival allows, it is better to solely refer the properties of these grades compared with a free machining grade such as AISI 303 ( MAXIVAL 188HS ) and standard grades such as AISI 304 and AISI 316.
In this specific case, it appears that:

• Maxival shows intermediate values between AISI 303 ( MAXIVAL 188HS ) and standard grades relative to corrosion resistance
• Whilst the Maxival process greatly improves machinability, traditional AISI 303 with its high added sulphur content, is still better
• Maxival grades have a better weldability than AISI 303, nevertheless depending on the welding process, Maxival has a different behaviour compared to standard grades. 
  This situation must be considered during the project.
• AISI 303 ( MAXIVAL 188HS ) has poor transversal ductility and toughness.  Therefore cold formability process would be avoided.
• Maxival grades can be cold and hot worked.

Evolution of Flank Wear of MV274MDE

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