2024 T4 T351 aluminum flat bar is a kind of high-strength hard aluminum bar, which can be strengthened by heat treatment; 2024 aluminum alloy has good spot weldability, and tends to form intergranular cracks when using gas welding and argon arc welding; 2024 T4 T351 aluminum flat bar can be cut after cold work hardening Performance is good. Corrosion resistance is not high. Anodizing treatment and painting methods are often used or the surface is coated with aluminum to improve corrosion resistance.
2024 T4 T351 aluminum flat bar applications: It is mainly used to make various high-load parts and components (but not including stamping parts and forgings) such as skeleton parts, skins, bulkheads, ribs, spar, rivets and other working parts below 150 ℃ on aircraft.
| Element | Si | Fe | Cu | Mn | Cr | Mg | Zn | Ti | Al |
| 2024 | ≤0.5 | ≤0.5 | 3.8-4.9 | 0.3-0.9 | ≤0.1 | 1.2-1.8 | ≤0.25 | ≤0.15 | Rem |
|
Processing |
Temper |
Mpa Tensile Strength |
Mpa Yield Strength |
Elongation |
HB Hardness |
| Extruded | T4 | ≥425 | ≥275 | ≥12 | 120 |
