Specification Brand : Online Metals BulletPoint1 : 304 stainless steel is the most commonly used grade of stainless steel due to its combination of corrosion resistance, weldability, and formability BulletPoint2 : Unpolished (mill) surface has no finish BulletPoint3 : Meets ASTM A276 specifications BulletPoint4 : Annealed after shaping to modify the metal's properties BulletPoint5 : Standard tolerance GradeRating : 304 ItemForm : Bar ItemName : 304 Stainless Steel Rectangular Bar, Unpolished (Mill) Finish, Annealed, 0 (Annealed) Temper, ASTM A276, 3/8" Thickness, 3" Width, 12" Length ItemPackageDimensions_Height : 30.48 centimeters ItemPackageDimensions_Length : 7.366 centimeters ItemPackageDimensions_Width : 1.016 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular Bar ItemTypeKeyword : stainless-steel-bars Manufacturer : OnlineMetals Material : Stainless Steel ModelNumber : B000H9JTME NumberOfItems : 1 PartNumber : 4426 ProductDescription : Alloy: 416 | Material: Stainless Steel | Shape: Bar-Round | Production Method: Cold Finish | Diameter: 1.5 Inches | Item Length: 36 Inches Stainless Round Bar 416 provides exceptional machinability and good strength and hardness post heat treatment. The corrosion resistance of 416 is lower than other stainless steel alloys. It is typically used in concrete footings, piers, walls, beams, columns, supports, braces, railings, and handles. 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. UNS S41600, AISI 416, Alloy 416, martensitic stainless steel This product weighs 18.25 pounds and meets the following specs: AMS-5610, ASTM-A582 ProductSiteLaunchDate : 2006-08-05T15:00:00-00:00 Size : 0.375\" Thk | 3\" width SpecificationMet : Astm A276 Style : 12\" length UnitCount : 1 UnspscCode : 30264500