2A11 aluminum alloy round bar

2A11 aluminum alloy round bar is the earliest hard aluminum used, generally known as standard hard aluminum. It has medium strength, good plasticity in annealing, rigid quenching and thermal state, and can be strengthened by heat treatment. It can be used in quenching and natural aging state. It has good spot welding performance, and tends to crack during gas welding and argon arc welding; Machinability is good in quenching and aging state and bad in annealing state.

Al: allowance
Silicon Si: ≤ 0.7
Copper Cu: 3.8 ~ 4.8
Mg: 0.40 ~ 0.8
Zinc Zn: ≤ 0.30
Mn: 0.40 ~ 0.8
Titanium Ti: ≤ 0.15
Nickel: Ni ≤ 0.10
Fe: 0.000 ~ 0.700
Fe + Ni Fe + Ni: 0.000 ~ 0.700
Note: single: ≤ 0.05; Total: ≤ 0.10
Mechanical properties of 2A11 aluminum alloy rod
Tensile strength σ b (MPA)：≥370
Conditional yield strength σ 0.2 (MPA)：≥215
Elongation δ 5 (％)：≥12
Note: longitudinal mechanical properties of bar at room temperature
Sample size: bar diameter (inscribed circle diameter of square bar and hexagonal bar) ≤ 150
Heat treatment process of 2A11 aluminum alloy round bar
1) Homogenization annealing: heating 480 ~ 495 ℃; Heat preservation for 12 ~ 14h; The furnace is cold.
2) Complete annealing: heating 390 ~ 430 ℃; Holding time: 30 ~ 120min; Air cooling.
3) Rapid annealing: heating 350 ~ 370 ℃; The holding time is 30 ~ 120min; Air cooling.
4) Quenching and aging: quenching at 495 ~ 510 ℃, water cooling; Artificial aging 155 ~ 165 ℃, 6 ~ 10h, air cooling; Natural aging: 96h at room temperature.
2A11 aluminum alloy round bar status: aluminum and aluminum alloy extruded bar (≤ 150mm, h112, T4 status)
The products supplied by Henan Chalco aluminum are produced in strict accordance with various national standards such as GB / t3191-2010, GB / t6892-2006 and GB / t3190-2008, so as to ensure the excellent quality of products. Products can be customized according to customers' special requirements.

2A11 aluminum alloy bar rod

2A11 aluminum alloy is a kind of hard aluminum used earliest, which is generally called standard hard aluminum. It has medium strength, good plasticity in annealing, rigid quenching and thermal state, and can be strengthened by heat treatment. It can ...