Aluminum Al: balance; Silicon Si: 0.25; Copper Cu: 0.10; Magnesium Mg: 2.2～2.8; Zinc Zn: 0.10; Manganese Mn: 0.10; Chromium Cr: 0.15～0.35; Iron Fe: 0.40.
Mechanical properties
Tensile strength (σb): 170～305MPa Conditional yield strength σ0.2 (MPa)≥65 Elastic modulus (E): 69.3～70.7Gpa Annealing temperature: 345℃.
Related product standards
The national standard for aluminum pipes and strips (GB/T 3880-2006) is a unified standard for aluminum alloy pipe and strip materials.