3A21 H112 extruded aluminum bar rod is mainly used for propellant tanks, welded parts such as skins, end frames, brackets, etc., and ducts that work in corrosive media.
Chemical composition of 3A21 H112 extruded aluminum bar rod
| Element | SI | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Zr | Al |
| 3A21 | ≤0.6 | ≤0.7 | ≤0.2 | 1.0-1.6 | ≤0.05 | _ | ≤0.1 | ≤0.15 | _ | Rem |
Mechanical property of 3A21 H112 extruded aluminum bar rod
|
Temper |
Rm(Mpa) |
Rp0.2（Mpa） |
Elongation A（%） |
Hardness HBW |
| H112 | ≤167 | _ | 20 | _ |
