AISI O1 tool steel is a low alloy type cold work tool steel, containing manganese, chromium and tungsten, which must be hardened by oil quenching. It is by far the most widely used tool steel and is produced by almost all tool steel mills.

Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion. These bars, also known as flat stock, are decarb-free for a uniform surface that will consistently accept heat treating.

Dec 10, 2024 · What Is O1 Tool Steel? O1 tool steel is a high-carbon, oil-hardening steel that meets international standards such as AISI Type O1 and UNS T31501. It is classified as a cold-work tool steel designed to withstand high stress and …

The O1 tool steel is commonly used for cutting tools like knives and blades. 1 % of Carbon: It improves hardness and wear/corrosion resistance, but a high amount of it decreases strength. 0.6 % of Chromium: For tensile strength and Edge retention, and enhances corrosion resistance and wear resistance.

O1 Tool Steel. O1 Tool Steel is the original oil-hardening, “non-shrinking” tool steel that can be hardened to the Rockwell C 65 range from a low austenitizing temperature. O1 is a general-purpose tool steel that is typically used in applications where alloy steels cannot provide sufficient hardness, strength, and wear resistance.

Steel O1 is a Tool Steel (High-alloy steel) that has on top of the 0.9% of carbon an additional 2.3% of manganese, chromium, nickel, tungsten (See details in the below table). Steel O1 has a machinability rating of 42%. Steel O1 belongs to the "O series" of tool steels.

O1 steels are mainly used for short run tooling for cold forming dies, blanking dies, and cutting tools operating at ambient temperature. Cold-work tool steels are high carbon steels that are further classified into three subgroups such as oil-hardening steels, high-carbon, high-chromium steels, and air-hardening steels.

May 20, 2024 · O1 steel, sometimes called oil-hardening steel, has a unique chemical structure that makes it applicable in many tool making industries. From my own experience, the major elements making up the composition include carbon, …

AISI Tool steel O1 is available in standard de-carb free rounds, flats and squares, as well as the largest size selection in O1 oil steel ground flat stock and drill rod of all the tool steel grades, or as per customized requirements.

O1 grade steel is an oil-hardening, non-deforming tool steel. It is considered to be a "non-shrinking" steel and it can be hardened to a Rockwell Range of C 65 through use of relatively low temperatures.