- O1 tool steel has better machinability than A2 tool steel, and must be hardened in oil
- Meets ASTM A681 specifications
- Ground with high precision to the specified shape and size
- Standard tolerance
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O1 Tool Steel Sheet, Precision Ground, Standard Tolerance, Inch, ASTM A681
|Price:||$14.16 - $2,273.80|
|Material Type||Tool Steel|
|System of Measurement||Inch|
|Specification Met||ASTM A681|
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The O1 tool steel sheet has been precision ground and polished, meets American Society for Testing and Materials International ASTM A681 specifications, and has a standard tolerance. The O1 tool steel grade has better machinability than A2 tool steel. It must be hardened in oil, which can be done at relatively low temperatures for good dimensional stability. The sheet has been ground to achieve the precise shape and size.
Steel is an iron alloy with carbon and other elements that modify the steel to achieve specific properties. In general, steels with higher carbon content have greater strength, hardness, and wear resistance, while those with lower carbon content have more formability, weldability, and toughness. Carbon steels, which include most AISI-SAE grades in the 1000 range, are classified by their level of carbon content as low (below 0.3%), medium (0.3% to 0.6%) and high (0.6% and above). Alloy steels, which include AISI-SAE grades in the 1300 and 4000 ranges and above, incorporate elements such as chromium, molybdenum, and nickel to modify properties like machinability and corrosion resistance. Tool steels, which include most grades with a letter and number grade designation, have high carbide content for wear resistance, high hardness, and the ability to hold a cutting edge. Some tool steels are designed to resist deformation when used in elevated temperatures.
Tensile strength, used to indicate a material’s overall strength, is the peak stress it can withstand before it breaks. Wear resistance indicates the ability to prevent surface damage caused by contact with other surfaces. Toughness describes the material's ability to absorb energy before breaking, while hardness (commonly measured as indentation hardness) describes its resistance to permanent surface deformation. Formability indicates how easily the material can be permanently shaped. Machinability describes how easily it can be cut, shaped, finished, or otherwise machined, while weldability characterizes the ability to be welded.
Top Customer Reviews
Do observe the manufacturers' warnings not to temper this steel at temperatures above 450F as the steel can become brittle at tempering temperatures between 450-600F. I've tempered all the blades I've made in the kitchen oven at a nominal temerature of 375F (an oven thermometer registers 360F), keeping them at this temperature for a minimum of 1 hour and then quenching in water. The resulting blades are quite hard and hold an edge very well.
Next up a set of wood chisels and a couple of plane irons. No point in firing up the forge just for one item!
1. Thin enough you can use a propane torch to harden/anneal.
2. Ground flat on both sides means less work lapping later (though you need to lap).
3. Good quality steel.
1. A bit pricey, a drawback when you only need small quantity.
If you have a better/cheaper supply go for it by all means, but I'm very satisfied with this purchase.
I will be ordering my metal from this distributor again~
Most Recent Customer Reviews
great steel great pice flat with no chipped or major scratches some oil stains but easily sanded of and just great steel all aroundPublished 21 days ago by Amazon Customer
I purchased the steel and received it about a week ago and I've just made two knives with it; one for my friend and I for a camping trip. Read morePublished 25 days ago by Kyle
I bought a 3ft section of this steel and managed to get 2 knives and a shortsword forged from it. They all hardened well and no cracks/warps. Also retains a great edgePublished 26 days ago by Hank Blevins