Aluminum Square Bar

Aluminum Square Bar is most commonly produced through the process of extrusion or cold drawn. By those processes, aluminum square bar is manufactured by pushing or drawing the material (round billet or bar stock) through a die that is under pressure. And these processes elongate the aluminum billet into square shape. Square bar is widely used in fabrication of components and parts of machinery.


Standard Specification

GB/T 3191


EN 754

EN 755

Available Size Range

  • Width :

    10x10 ~ 250x250 mm
  • Length :

    1,000 ~ 6,000  mm

Surface Finish

Mill Finish, unless otherwise specified

Surface Protection

Paper interleaved for bar

Production Process

Extruded, Cold Drawn

Form & Image


Alloy and Temper

Alloy Temper
2000 Series: 2014, 2024 T4, T6, T3511, T4511
5000 Series: 5083 O, H112
6000 Series: 6005, 6060, 6061, 6063, 6082, 6463 T4, T5, T6, T66, T6511
Alloy Series Chinese Standard American Standard European Standard
2000 Series 2014 2014 EN AW-2014
2024 2024 EN AW-2024
5000 Series 5083 5083 EN AW-5083
6000 Series 6005 6005 -
6060 6060 EN AW-6060
6061 6061 EN AW-6061
6063 6063 EN AW-6063
6082 6082 EN AW-6082
6463 6463 EN AW-6463
Temper Definition
O Annealed
H112 Slightly strain harden from working at an elevated temperature or from limited amount of cold work
T4 Solution heat-treated and naturally aged
T5 Cooled from an elevated temperature shaping process and then artificially aged
T6 Solution heat-treated and then artificially aged
T66 Solution heat-treated and then artificially aged - mechanical property level higher than T6 achieved through special control of the process (6000 series alloys)
T3511 Solution heat-treated and stress-relieved by stretching to produce a normal permanent set of 1-1.5%, but not less than 1% nor more than 3%
T6511 Solution heat-treated, stress-relieved by stretching and artificially aged with minor straightening