Low cost austenitic steel

[CoryPad]

We have an application where we need a non-ferromagnetic material that can be surface hardened to withstand high contact stress. We do not need resistance to corrosion or high temperature. Is there something cheaper than 201/204 that has no chromium?

 

[EdStainless]

Maybe.
There are Austenitic Mn steels, these are high C and high Mn alloys, one spec is ASTM A128.
They are most commonly used for abrasion resistance because they work harden significantly.
These are very tough alloys that also have good strength.
Be warned though that virtually all surface hardening treatments are highly ferromagnetic.

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Plymouth Tube

 

[arunmrao]

Manganese steel quite closely fits the bill. In what form do you need them? Any machining ,very poor machinability .

I'm just one step away from being rich, all I need now is money.
( read somewhere on the internet)

 

[TVP]

Unfortunately, we need high formability (fine blanking or cold forming or similar). If there is nothing common with low Cr and low C, then we probably would look at 201/204.

 

[arunmrao]

High manganese steel will not be useful, it is best to use 200 series stainless steel.

I'm just one step away from being rich, all I need now is money.
( read somewhere on the internet)

 

[EdStainless]

TVP, are you needing to form in all three dimensions or are these really just stamped parts?
I have seen these alloys provided down to 4mm sheet.

http://www.titussteel.com/our-products/wear-steel/manganese

http://www.manganal.com/faq.html

They would stamp fine, but don't expect to raise or indent features.

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Plymouth Tube

 

[CoryPad]

We don't need to form in three dimensions, only one. First step is cut a symmetrical, non-circular cross-section from a sheet, then fine blank in one dimension to produce indented features.