A2 Tool Steel Rectangular Bar Air Hardened/Annealed/Precision Ground Precisio...

Description

A2 Tool Steel Rectangular Bar, Air Hardened/Annealed/Precision Ground, Precision Tolerance, ASTM A681, 1/4" Thickness, 12" Width, 18" Length
A2 tool steel has better wear resistance than O1 and W1 tool steels, and maintains good dimensional stability when air-hardened following heat treatment
Meets ASTM A681 specifications
Ground with high precision to the specified shape and size
Annealed after shaping to modify the metal's properties
Precision tolerance
The A2 tool steel rectangular bar has been precision ground and annealed, meets American Society for Testing and Materials International ASTM A681 specifications, and has a precision tolerance. The A2 tool steel grade has better wear resistance than O1 and W1 tool steels, and maintains good dimensional stability when hardened in air following heat treatment. The bar has been ground to achieve the precise shape and size, and has been annealed, a method of heating and cooling metal to modify its properties, such as increasing its formability and toughness or decreasing its strength, after it has been shaped. 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 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.
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