China · GB

2014

GB/T 6892:2015 — Wrought aluminium and aluminium alloys--Extruded profiles for commercial usage

Chemical composition

wt% · log scale
0.010.1110Cr0.1Cu3.9 – 5Fe0.7Mg0.2 – 0.8Mn0.4 – 1.2Others Total0.05Si0.5 – 1.2Ti0.15Total Others0.15Zn0.25
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≤250 MPaTensile strength Rm≤135 MPaElongation A≥10 %Elongation A≥12 %HardnessHBsections, O, H111Yield strength Rp0.2≥270 MPaTensile strength Rm≥410 MPaElongation A≥10 %HardnessHBsections, T4, T4510, T4511, 25 < t <= 75mm, tYield strength Rp0.2≥230 MPaTensile strength Rm≥370 MPaElongation A≥11 %Elongation A≥10 %HardnessHBsections, T4, T4510, T4511, t <= 25mm, tYield strength Rp0.2≥415 MPaTensile strength Rm≥460 MPaElongation A≥7 %HardnessHBsections, T6, T6510, T6511, 25 < t <= 75mm, t

Chemical composition

ElementminmaxSimilarRemarks
Al​​Bal​​​​Bal​​
Cr0.1
Cu3.95
Fe0.7
Mg0.20.8
Mn0.41.2
Others Total0.05
Si0.51.2
Ti0.15
Total Others0.15
Zn0.25

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
sections, O, H111≤250≤135≥10 Lo = 50mm；≥12HB ≥45
sections, T4, T4510, T4511, 25 < t <= 75mm, t≥270≥410≥10HB ≥110
sections, T4, T4510, T4511, t <= 25mm, t≥230≥370≥11；≥10 Lo = 50mmHB ≥110
sections, T6, T6510, T6511, 25 < t <= 75mm, t≥415≥460≥7HB ≥140
sections, T6, T6510, T6511, t <= 25mm, t≥370≥415≥5 Lo = 50mm；≥7HB ≥140