Low alloy vs High alloy question

[Larrin]

3V and CruWear have the same Cr content but CruWear has more carbon. That makes it form some chromium carbide and somewhat reduce the corrosion resistance.

 

[Blues]

Thanks, Larrin

Great info. Two steels I happen to like very much.

 

[shqxk]

Thanks, Larrin

By the way, can you verify that the info reported by S shqxk in the quote above is correct? I've been operating under the, perhaps erroneous, impression that CPM Cru-Wear had higher corrosion resistance than 3V. Can you clarify, one way or the other? (I imagine they are probably close.)

I don't mind being put right...and perhaps that is an indication why my small 3V fixed blade has fared so well these past twenty or so years.

Thanks in advance.

CPM-Cruwear has 0.3% higher carbon content while having slightly more carbide former alloy (tungsten) so there are likely less free chromium in Cruwear compare to 3V. Would be good if Larrin can confirm this.

 

[ferider]

3V and CruWear have the same Cr content but CruWear has more carbon. That makes it form some chromium carbide and somewhat reduce the corrosion resistance.

Not to nitpick, Larrin, but that does not match your estimates here http://knifesteelnerds.com/2019/01/14/which-knife-steels-have-the-best-corrosion-resistance. What am I missing ?

 

[Larrin]

Not to nitpick, Larrin, but that does not match your estimates here http://knifesteelnerds.com/2019/01/14/which-knife-steels-have-the-best-corrosion-resistance.

I updated those ratings after performing more experiments: https://knifesteelnerds.com/2019/10/14/corrosion-resistance-testing/

 

[ferider]

I updated those ratings after performing more experiments: https://knifesteelnerds.com/2019/10/14/corrosion-resistance-testing/

Thanks.

 

[Blues]

Thanks again, Larrin ...great info for us enthusiasts. With 3V @ 5.6 vs. Cru-Wear at 5.4, they are close indeed.