More alloying elements are used in these steels, as compared to the water-hardening class.

:-> This extreme cold treatment (-320°F) essentially finishes the original quench, increasing the steel’s toughness without any decrease in hardness. Copyright © 2006-2020 The Wood Whisperer Inc. My experience: The A2 does hold an edge longer, but not so much longer as to make much difference to me – in fact I end up sharpening them pretty much at the same interval. Very happy with it. I hope this example helps. SERVICES Hey Brian. Luckily, I ‘ve been in the same position as you, and I wanted to know more about the O1 steel, and how good is it for my knives, therefor I answer many questions(What is it? ;). I continue to enjoy the site and The Guild. 0.60–0.75% carbon: machine parts, chisels, setscrews; properties include medium hardness with good toughness and shock resistance. We can alsow talk about the D2 or A2 tool steel, but they are Superieur to the O1 steel, so I really can’t consider them as equivalents. You are absolutely correct in your understanding of the difference between A2 and O1 steels. (old files etc.). Compare popular tool steel grades A2, M2, D2, S7, O1 using the chart below. The mechanical properties of D2 are very sensitive to heat treatment. W-steels are still sold, especially for springs, but are much less widely used than they were in the 19th and early 20th centuries. As a person who uses a lot of exotic hardwoods and doesn’t enjoy sharpening any more than I have to, I prefer A2. My question relates to tool steel. The O1 tool steel is commonly used for cutting tools like knives and blades. *We will reply with best offer in shortest time*. D2 is considered almost stainless, but it has rather large Cr carbides. My choice would be A2–or until someone comes out with plane blades made of ATS-34 or 154CM. Any product claim, statistic, quote or other representation about a product or service should be verified with the manufacturer, provider or party in question. One other thing–A2 is more resistant to annealing, which means if you ever have to use a grinder to fix a chipped edge, you will be less likely to ruin the temper of your blade, should it get too hot. I understand that O1 steel is softer, allowing for easier sharpening to a keener edge, but one that will dull more quickly. The only power machine he has is a tablesaw.

You get increased wear resistance without any increase in brittleness so a cryogenically treated blade will hold its edge longer. Wide range of tool steel, alloy steel, carbon steel are available in stock for fast delivery. I am not going to put a lot of miles on this plane, so more frequent sharpening will not be a big burden to me.

Sales Desk: 7:00 AM - 3:30 PM CST Mon - Fri, HOME   |   PRODUCTS   |   SERVICES   |   GUIDES   |   CONTACT   |   ABOUT US   |   GALLERY   |   BLOG   |   LOCATION   |   SHIPPING   |   TERMS   |   SITE MAP, © 2020 KEY METALS INC - ALL RIGHTS RESERVED - KEY METALS IS A REGISTERED TRADEMARK. Jason. Machinability: According to the steel manufacture, O1 steel has a 90% machinability rate which is good. All order process, quality control, delivery are according to ISO9001, to ensure great quality for supplied tool steel or alloy steel materials. For my money, the longer lasting edge, and slightly improved rust resistance are important factors. I understand that A2 is the harder steel, which has the benefit of holding an edge longer and the detriment of being more difficult to sharpen. :, Regular Required Shape * i.fb-icon-element.fontawesome-icon.fb-icon-element-1{ color: #000000;}i.fb-icon-element.fontawesome-icon.fb-icon-element-1:hover { color: #000000;}Stainless Steel, i.fb-icon-element.fontawesome-icon.fb-icon-element-2{ color: #000000;}i.fb-icon-element.fontawesome-icon.fb-icon-element-2:hover { color: #000000;}Carbon Steel, i.fb-icon-element.fontawesome-icon.fb-icon-element-3{ color: #000000;}i.fb-icon-element.fontawesome-icon.fb-icon-element-3:hover { color: #000000;}Stainless Steel, i.fb-icon-element.fontawesome-icon.fb-icon-element-4{ color: #000000;}i.fb-icon-element.fontawesome-icon.fb-icon-element-4:hover { color: #000000;}Carbon Steel, i.fb-icon-element.fontawesome-icon.fb-icon-element-5{ color: #000000;}i.fb-icon-element.fontawesome-icon.fb-icon-element-5:hover { color: #000000;}Stainless Steel, i.fb-icon-element.fontawesome-icon.fb-icon-element-6{ color: #000000;}i.fb-icon-element.fontawesome-icon.fb-icon-element-6:hover { color: #000000;}Carbon Steel. There are six groups of tool steels: water-hardening, cold-work, shock-resistant, high-speed, hot-work, and special purpose. 14c28n is an excellent steel. The presence of carbides in their matrix plays the dominant role in the qualities of tool steel.

Its edge retention is relatively low due to the small amount of soft iron carbides (cementite). If you don’t mind or actually enjoy(?)

A2 is a great steel that offers a real improvement in edge retention.

Supply per drawning; Cut to size service; Machined to accurate tolerance service; Special anti-rust or anti-damage packing, all those save time and money. Can you please confirm, to the degree you are able, that I am correct in my understanding here. O1 tool steel must be hardened by quenching in oil.

If someone used an O1 and A2 blade in equal ways — how much longer might the A2 last over the O1?

Check out his book: The Perfect Edge: The Ultimate Guide to Sharpening for Woodworkers. I have two planes that I use about the same amount. I also made a cart to holds my waterstones and grinder that I can be wheeled beside me when I’m working on a project to touch up my blades and chisels when need be. That pinch of Mn allows the steel to harden with an oil quench (the “O” in O1 stands for Oil.) D2 is the most stain resistant. O1 has less abrasion resistance. Key Metals. What blade should I use to make a (smoother, jack, whatever) woody. Then A2. The wear resistance properties and cost place A2 between that of O1 and D2 tool steel making it a good all purpose grade for many applications. Up to 0.20% of vanadium is used to retain fine grain sizes during heat treating. O1 steel, a simple high carbon tool steel with very little added to the iron/steel alloy other than 1.1% manganese. This extreme cold treatment (-320°F) essentially finishes the original quench, increasing the steel’s toughness without any decrease in hardness. Because of their "matched" steel matrix, it may be that Stentor/O2 had a slightly advantageous set of properties to O1 over a wider range of applications. O1 vs.D2 tool steel Looking for better abrasion resistance. : 1F, Building B, Sanfang Industrial Area, Xiansha, Gaobu Town,Dongguan City, Guangdong Province, P.R.

The O1 tool is considered low-end with high carbon and manganese, which makes it great for hardness and wear resistance.

1.11–1.30% carbon: files, small drills, lathe tools, razor blades, and other light-duty applications where more wear resistance is required without great toughness. It doesn’t state the case for M2 as clearly as Ron Hock did in this blog. A chisel or block plane blade can be even steeper; try 35° or so and see if edge retention is improved. The views and opinions expressed on this blog are purely our own. However, during heat treatment, the chromium carbides can grow quite large.

These alloys increase the steels' hardenability, and thus require a less severe quenching process and as a result are less likely to crack.

O1 has a fine microstructure of cementite. The high shock resistance and good hardenability are provided by chromium-tungsten, silicon-molybdenum, silicon-manganese alloying. The Groz blade is well suited for warm butter and not much else.

Their use in tooling is essential; injection molds for example require tool steels for their resistance to abrasion- an important criterion for mold durability which enables hundreds of thousands of moldings operations over its lifetime.

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