6063 aluminum rods are the only Al-Mg-Si alloys for which no stress corrosion cracking has been detected in heat-treatable aluminium alloys. However, quenching can adversely affect strength if left at room temperature for a period of time before ageing (parking effect).

Hardness:

The hardness of 6063 aluminum bars can vary depending on the treatment.

Generally, the hardness of 6063 aluminum alloy ranges from about 75-120 HB. if heat treated, Rockwell hardness may reach 20-40 HRB or 40-60 HRC. in addition, if the aluminium alloy is strengthened by cold working, the hardness may be even higher due to the effects of cold work hardening.

Applications:

Often used in construction profiles, irrigation tubing, extrusions for vehicles, pedestals, furniture, lifts, railings, etc., and decorative components of different colours for aircraft, ships, light industrial sectors, buildings, etc.