High-performance alloy material for industrial engineering and critical application conditions.
Scope of supply of Aviation Group:
It can be customized non-standard, aluminum plate (whole plate/cut), aluminum rod, aluminum forgings, aluminum tubes, aluminum profiles, etc. Welcome to inquire!
3A21 is an Al-Mn-based alloy, which is an excellent rust military aluminum alloy material. 3A21 aluminum plate is a widely used anti-rust aluminum with low strength (only slightly higher than industrial pure aluminum) and cannot be strengthened by heat treatment. Therefore, cold processing methods are often used to improve its mechanical properties. It has high plasticity in annealed state, and it is still good when hardened semi-cooled work, low plasticity during hardening, good corrosion resistance, good welding, and poor cutting performance.
| Alloy Medal | Silicon Si | Iron Fe | Copper Cu | Manganese Mn | Magnesium Mg | Chromium Cr | Zinc Zn | Titanium Ti | other | Aluminum AL | ||
| New grade | Old brand | 0.60 | 0.70 | 0.20 | 1.0-1.6 | 0.05 | – | 0.10 | 0.15 | Each | total | margin |
| 3A21 | LF21 | 0.05 | 0.10 | |||||||||
| Aluminum alloy grade and status | tensile strength Rm/Mpa | Yield strength Rp0.2/Mpa | Elongation/% | Hardness/HBWα | density (20 ℃) (g / cm3) |
| 3a21-h112 | 120 | – | 16 | – | 2.75 |
3A21 is mainly used for welding parts such as aerospace, military equipment, tooling and fixtures, automobiles, transportation, propellant storage boxes, welded structural cabin skins, end frames, brackets and other welded parts, as well as conduits that work in corrosive media.
