O-2 tool steel

A

Aldo Bruno

Joined
Jul 30, 2004
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805
Would any of you be interested in O-2 tool steel? I have an opportunity to get some in pretty thin sheet(.095/.125). A lot of guys used to get it to make Damascus seeing as the Manganese is so high( 1.95)
 
I got my own, but I'm a fan. Easy to HT and takes a great edge.

I was wondering when you were gonna have that German mill make your own version of white 2
 
Personally, no. But that's just what I prefer to work with. Would be more excited to see O7 instead of O2. Thanks Aldo.
 
I'd order, but your site won't let me order from Canada anymore. Is that on purpose?
 
A lot of guys here in Europe use O2 (aka 1.2842 aka 90MnCrV8) for both monosteel blades and as the dark element in damascus. As Aldo mentioned the super high manganese content makes it etch very dark so contrast is great and performance is also excellent. Some folks also use it in 3-steel billets where you have one bright layer, one grey layer, and one black layer for a really cool 3-d effect.

The O7 (1.2519) that samuraistuart mentioned is BOMB but for entirely different reasons (super fine grain, crazy edge holding, etc)
 
O2 is great on its own AND in damascus.
O7 is the only steel I used in damascus I had problems with.
 
I would buy some to use as the core of stainless san mai.
 
O2, aka bohler k720 (here in EU) is a great steel, it etches jet black. Hardens at 1472-1475 °F to 66-68 HRC, temper as desired in the 380-450 °F
It is for keen edges
The composition it's bit different from O1, but i don't know much because i've never worked with O1
 
Stezann is on the mark. The top end for Austinizing is 1500F. Tempering at 400 will give you 62Rc, at 450 - 60Rc. Pretty basic stuff, although accurate temperatures are a must.

Typical analysis:
Carbon 0.90% Manganese 1.90%
Chromium 0.50% Silicon 0.35%
Vanadium 0.15%
 
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