yet another mistry steel help please

B

bartblade

Joined
Nov 4, 2002
Messages
344
i have had this metal for quite some time now and made some blades from it; i was told it was 440c but have been doublful for a few reasons.

1. it is nonmagnetic at all times.
2. i have left it out in the weather a few years and it has never rusted not even the slightest bit.
3. it is tough to cut even after annealing or tempering what ever term you prefer.
4. i have had to use a hand grinder to cut most of my blades out of it and it gets supper hard to manipulate after work hardenning.

the use it was for was some kind of water storage system for the machining industry.

i am wondering if anyone has any ideas what this metal might be.

there is not any place around here i know of that i can get it tested to see what it is.
 
300 series is nonmagnetic ,it does work harden only not HT harden.
 
Yes especially if the belt is worn and especially if it is 301 which work hardens very easily.
 
"Sounds" like some 17-4 that I found at a junk yard once. But I don't know who could test it for you. Mine was marked.
If you do a search or check with Darrell Ralph, he seams to know a lot about it.
 
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