7A09 aluminum wire is an aluminum alloy with high strength and excellent corrosion resistance. It has excellent welding performance and corrosion resistance, and can be used in the manufacture of various structural parts and high-strength parts, such as aerospace, ships, automobiles, railway vehicles and other fields.
Why choose Chalco Aluminum 7A09 T4/T6 aluminum wire?
Quality could full meet world wide aviation standard
AMS 4123
EN 485-2
Production and management comply with international aviation quality system certification
AS9100
OHSAS 18001
ISO14001
ISO 9001
NADCAP HT
NADCAP NDT
IATP16949
Specs of 7A09 T4/T6 aluminum wire
| Alloy | 7A09 |
| Temper | T4, T6, T7, T73 |
| Diameter | 0.5-12MM |
| Standard | AMS 4123, EN 485-2 |
Chemical composition of 7A09 aluminum alloy
| Element | Composition range（%） |
| （Al） | Reminder |
| （Zn） | 2.4%-2.8% |
| （Mg） | 1.8%-2.4% |
| （Cu） | 1.2%-1.8% |
| （Cr） | 0.08%-0.15% |
| （Mn） | 0.06%-0.15% |
| （Ti） | 0.05%-0.15% |
| （Si） | 0.15%-0.40% |
| （V） | 0.04%-0.12% |
| （Fe） | ＜0.30% |
| （Sn） | ＜0.10% |
| （Zr） | ＜0.10% |
| Other | ＜0.05% |
Property of 7A09 aluminum wire
| Physical properties | Value |
| Density | 2.79 g/cm3 |
| Melting point | 570°C |
| Yield strength | ＜680 MPa |
| Tensile strength | 780 MPa |
| Elongation | ＜10% |
| Hardness | 160 HB |
| Coefficient of thermal expansion | 23.8×10-6/°C（20°C） |
| Thermal conductivity | 121 W/(m·K)（20°C） |
| Conductivity | 27.6 MS/m（20°C） |
Tempers of 7A09 aluminum alloy
Solid solution temper (7A09-T4)
The 7A09 aluminum alloy that has undergone solid solution treatment forms a solid solution state after rapid cooling (water quenching or air cooling), also known as T4 temper. Alloys in solid solution state have high plasticity and toughness, but relatively low strength.
Age hardening temper (7A09-T6)
After solution treatment and then aging treatment, the age hardening state is formed, also known as T6 temper. Alloys in the age-hardening state have high strength, hardness and wear resistance, but relatively low ductility and toughness.
Other tempers
In addition, 7A09 aluminum alloy can also undergo other treatments, such as overaging treatment (T7, T73) and intermediate aging treatment (T6), to adjust its mechanical properties.
The use of 7A09 aluminum wire
The high strength and low density of 7A09 aluminum wire make it an ideal material for the aerospace field, and can be used to manufacture the following parts on the aircraft:
- aircraft structures
- aircraft engines
- aircraft propellers
- other components, such as the circuit system, information transmission system, etc.
The characteristics of 7A09 aluminum wire
High strength:7A09 aluminum wire is a high-strength aluminum alloy, which has higher yield strength and tensile strength than traditional aluminum alloys.
Good toughness:7A09 aluminum wire has good toughness and ductility at the same time of high strength, so that it has better performance when bearing shock and vibration.
Good corrosion resistance:7A09 aluminum wire has good corrosion resistance, and its performance is stable and not susceptible to corrosion in harsh environments such as air and sea water.
Good electrical conductivity:7A09 aluminum wire has good electrical and thermal conductivity, which makes it widely used in the field of power transmission.
Lightweight:7A09 aluminum wire has a lower density and is lighter in weight than steel and other materials, which helps to achieve lightweight design.
