Alloy: 4130 | Material: Alloy Steel | Shape: Sheet/Plate | Thickness: 0.09 Inch | Item Width: 12 Inches | Item Length: 36 Inches Alloy Steel Sheet 4130 Annealed offers good strength and weldability without compromising steel abrasion or impact resistance. 4130 can also be made even stronger through heat treatment. It is typically used in structural applications, gears, fasteners, and aircraft exteriors. Alloy steels are made by combining carbon steel with one or several alloying elements, such as manganese, silicon, nickel, titanium, copper, chromium and aluminum. These metals are added to produce specific properties that are not found in regular carbon steel. The elements are added in varying proportions (or combinations) making the material take on different aspects such as increased hardness, increased corrosion resistance, increased strength, improved formability (ductility); the weldability can also change. UNS G41300, AISI 4130, C4130, Alloy Steel, Chrome-Moly, Chromoly This product weighs 11.16 pounds and meets the following specs: AMS-6350, AMS-6351, ASTM-A505