I would like to know because I\'m getting a sword with an aluminum sheathe.That would depend on The Alloy and the Condition The alloy is the elements in percent that make up that material. The Condition is the heat treat of that alloy. Reffered to as Treatment when it comes to Aluminum Examples: 2024 T4 6061 T6 6063 T6 7075 T7 Etc,etc,etc,etc.................... Saying the word Aluminum is like saying the word Wood (Which One?) Aluminum can range from..what is this stuff,so soft and bends so easy To what the hell is this stuff, so dam hard stiff,and it just won\'t bend!! Oh,and 30 year boy........sit down.......30 years,and that is all you could come up with!!!! 30 years of drinking coffee,joking with the boss,and goofing off.You may want to sit the beer down and read up on the material you have been working with for 30 Years!!!!!No, it is a very soft metal. However for a sheath it will likely be fine, unless you intend on practicing using the sheath for blocking as some Samurai used it for.Well, they make airplanes out of it so it\'s pretty strong. It has a good shearing strength. Now, over time, yes, you would wear the sheath with the steel blade, but I doubt you\'ll need to worry about it too much.Cinderblock is correct. Alloys can be made of almost anything. Aluminum is made in like 2700 different grades/alloy combinations - some pure, most less so. Aluminum is the 3rd most plentiful element in the earths crust.wouldnt advise,it might bend Aluminium is a soft, lightweight metal with appearance ranging from silvery to dull gray, depending on the surface roughness. Aluminium is nontoxic, nonmagnetic, and nonsparking. The yield strength of pure aluminium is 7–11 MPa, while aluminium alloys have yield strengths ranging from 200 MPa to 600 MPa.[1] Aluminium has about one-third the density and stiffness of steel. It is ductile, and easily machined, cast, and extruded.Other related question