Ed - The probes are repeatedly inserted into the ground, hence the need for a harder material. The nitronic non-mag tips can wear very quickly, I believe the nitronic has a hardness of 95HRb.
ATI S240 looks an improvement on 17/4ph, Custom 465 seems to have very similar characteristics too...
Thanks that's all very helpful.
440c is interesting, one supplier is quoting an elongation factor of 2% min, is this the same as fracture toughness? I worry these quality's will make 440c unsuitable due to side loads experienced when pushing through glacial till.
A-286 looks to be ideal, thanks.
I'm trying to find the hardest and strongest possible stainless steel, I have been recomended 17-4ph 900, what are the alternatives?
I also need to find the hardest and strongest non-mag stainless steel, I belive we are using nitronic?
The steel is needed to make tips for probes we push in the...
