precision-drawn aluminum rod, diameter 6.5 mm; 2024 hard aluminum rod, diameter 380 mm; aluminum rod, diameter 400 mm. 精抽铝棒直径6.5mm 2024硬铝棒直径380mm 铝圆棒直径400mm

2024 aluminum alloy is a high-strength hard aluminum that can be strengthened through heat treatment; the 2024 aluminum alloy has good spot welding properties, but tends to develop intergranular cracks during gas welding and TIG welding; after cold working and hardening, the 2024 aluminum alloy still retains decent machinability. Its corrosion resistance is not high, so anodic oxidation treatment, painting, or applying an aluminum coating on the surface is commonly used to enhance its corrosion resistance.

●Chemical Composition:

Aluminum Al: Remainder

Silicon Si :≤0.50

Copper Cu :3.8~4.9

Magnesium Mg: 1.2~1.8

Zinc Zn: ≤0.30

Manganese Mn: 0.30~0.9

Titanium Ti :≤0.15

Nickel Ni: ≤0.10

Iron Fe: 0.000~ 0.500

Iron + Nickel Fe+Ni: 0.000~ 0.500

Note: Individual: ≤0.05; Total: ≤0.10

The forming properties are good under all three states—status, annealing, and post-quenching—and the heat treatment enhancement effect is significant, though the heat treatment process requires strict adherence to specifications. Corrosion resistance is poor, but effective protection can be achieved through pure aluminum coating; cracks are likely to occur during welding, but welding or riveting can be performed using specialized techniques.