3A21
Descrizione
Ambito di fornitura del Gruppo Aviation:
Può essere personalizzato non standard, piastra di alluminio (piastra intera / taglio), asta di alluminio, forgiati di alluminio, tubi di alluminio, profili di alluminio, ecc. Benvenuti a chiedere informazioni!
1. Introduzione a 3A21 I materiali
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.
2. Chemical composition of 3A21
| Medaglia in lega | silicio
E |
ferro
Fe |
rame
Cu |
manganese
Mn |
magnesio
Mg |
cromo
Cr |
Zinco
Zn |
titanio
Di |
altro | alluminio
AL |
|||||||||||||
| Nuovo grado | Vecchio marchio | 0.60 | 0.70 | 0.20 | 1.0-1.6 | 0.05 | – | 0.10 | 0.15 | Ciascuno | totale | margine | |||||||||||
| 3A21 | LF21 | 0.05 | 0.10 | ||||||||||||||||||||
3. 3A21 proprietà fisiche
| Grado e stato della lega di alluminio | resistenza alla trazione
Rm/Mpa |
Rendimento del rendimento
Rp0,2/Mpa |
Allungamento/% | Durezza/HBWα | densità
(20 ℃) (g / cm3) |
| 3a21-h112 | 120 | – | 16 | – | 2.75 |
Four: Applicable areas
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.
