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Heat Treating and Metallurgy Discussion of heat treatment and metallurgy in knife making. |
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#1
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Compare o1 to o2 steel
Hi
I got some B?hler o2 steel easily and cheaply available but I also have o1 steel availabe at a higher price. I don't know much about metallurgy and i can't fine a proper comparision between o2 and o1 steel anywhere. So i though, maybe some of you can tell me the pros and con by using one or the other steel. B?hler o2 steel composition: C 0.90 Si 0.25 Mn 2.00 Cr 0.35 V 0.10 Saxon o1 steel composition: C 0.95 Si 0.25 Mn 1.20 Cr 0.55 V 0.20 W 0.50 S&P Up to 0.035 So if I understands this right (please correct me). The increased Mn in o2 makes it a deeper hardening steel, The increased Cr in o1 makes it more corrosions resistant, the increased W in o1 makes it keep an edge better. What is S&P? If both steels are HT for their optimal properties, how much does these small differences actually affect the blade in the end? I HT with charcoal fire and heated canola oil, so I have no chance of getting the optimal properties during HT. I like the idea that the steel isn't to expensive, but which sttel would i be able to get the most out of? Last edited by Rasmus Kristens; 09-21-2017 at 04:13 AM. |
#2
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S&P = sulfur and phosphorus, both are bad for tool steels, so they saying how much of a minimum they keep it too. Both the Cr and the Mn are for increased hardenability, there is very little corrosion resistance offered from that level of Cr. The O-1 will edge out the O-2 on abrasion resistance, but with your setup the O-2 will be easier to optimize. I use both steels and like O-2 very much in Damascus as the Mn causes it to etch black as midnight.
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a, blade, cold, damascus, edge, etch, fire, heat, heat treatment, knife, make, material, metal, metallurgy, o-1, o1 steel, plastic, products, small, steel, surface, tool, tools, toughness |
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