Need steel recommendation - high wear on soft material

REK Knives

REK Knives

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Knifemaker / Craftsman / Service Provider
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Apr 3, 2011
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Hey guys. Looking at making some scissor blades for a glue factory. The blades themselves are about 6" long w/ an OAL of about 8". Obviously they have a chisel ground primary and secondary. They will be cutting about 3" diameter rolls of wet glue as it extrudes from the machine. They fail eventually, through wear - not fracture or deformation. What I am looking for is a stainless, probably high-ish carbide (for the wear resistance), but I need it to be magnetic as I will probably have to surface grind after heat treat to make sure the inside area is truly flat and not warped.

I will have to introduce a bow to each blade, after HT (just like scissors have).

Any recommendations would be appreciated.
 
CPM-S35VN or CPM-M4 would work, and are affordable. In non-stainless, CPM-3V or CPM-4V would be great.
 
Why not rex 121 or maxamet? They're not really stainless but the extremely high wear resistance and extremely high hardenability should work well with cutting what you're talking about.
 
Thanks guys. I sent off the blade I had from the factory to peters for an analysis to find out what it's currently made from, in addition to having it Rockwelled. I should know a lot more after I hear back.

Stacy, I thought 3v was more designed for toughness than wear resistance... Will it hold a good edge under high wear? I suppose a lot depends on what hrc it's at.

What's the stainless version of d2? Cts-xhp?
 
im thinknig XHP will work but only if price to make 2 is cheaper then it woudl be to make one set out of M4 or 204p or some other really fancy high alloy steel
i coudl ask the guys at CAR-TEC to see what they would spec
 
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