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302 Series Stainless Steel Shim Stock, Unpolished (Mill) Finish, Full Hard Temper, ASTM A666, 0.015" Thickness, 6" Width, 25" Length (Pack of 2)
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About 302 Series Stainless Steel Shim Stock, Unpolished
The 302 stainless steel shim stock has an unpolished (mill) surface, a full hard temper, and a standard tolerance, and meets American Society for Testing and Materials International ASTM A666 specifications. The 302 stainless steel grade has higher carbon content than general-purpose 304 stainless steel, providing greater strength and better toughness. An austenitic stainless steel that is one of the 18-8 grades, 302 is typically nonmagnetic and can be cold worked to increase its hardness and strength while maintaining most of its formability. The full hard temper is harder and has a higher yield strength than 1/2 hard temper to better resist deformation.Stainless steel is an iron alloy with resistance to staining and rusting in many environments where steel would typically degrade. The chemical composition of each grade creates a grain structure that falls into one of five classes: austenitic, duplex, ferritic, martensitic, and precipitation hardening. The austenitic class contains the most formable, weldable, and corrosion-resistant stainless steel grades, but they cannot be heat treated. The duplex class offers high resistance to pitting and chloride stress corrosion cracking. Duplex grades are heat treatable and roughly twice as strong as austenitic grades. The ferritic class contains moderately formable and corrosion-resistant grades compared to other stainless steel classes, but they cannot be heat treated. The martensitic class includes some of the hardest and strongest stainless steel grades that also offer mild corrosion resistance, high hardness, and good formability. Martensitic grades can be heat treated. The precipitation-hardening (PH) class can be heat treated after fabrication to achieve some of the highest hardness ratings in stainless steel. Tensile strength, used to indicate the material’s overall strength, is the peak stress it can withstand before it breaks. Corrosion resistance describes the material's abilit
