7050 is known as the "flying aluminum" due to its outstanding resistance to stress corrosion cracking and excellent peel resistance. Additionally, 7050 exhibits improved toughness, corrosion resistance, and excellent anodizing performance.
Its low sensitivity to quenching allows 7050 to maintain high-strength performance for extended periods, especially in thicknesses ranging from 3 to 6 inches, surpassing other high-strength alloys.
It is advisable to avoid conventional welding with 7050, as the welding process can compromise the strength of the alloy.Quick Quote
Why Chalco 7050 aluminum forgings?
Quality could full meet world wide aviation standard
AMS 4107 7050-T74 die forgings, AMS 4108 7050-T7452 hand forgings, AMS 4201 7050-T7452 die forgings
We meet international aviation certification
AS9100, OHSAS 18001, ISO14001, ISO 9001, NADCAP HT, NADCAP NDT, IATP16949
Meet military standards
MIL-DTL-32341、MIL-DTL-45225、MIL-DTL-46027、MIL-DTL-46083E、MIL-DTL-32375B、GJB 9614-2019、GJB 1540-2021Quick Quote
Specification of 7050 T74 T7452 T736 aluminum forgings
| FORGING | TYPE | MAX. WEIGHT | MAX. DIMENSION |
| Open Die Forging | Cube | ≤9T |
Length≤7000mm， Width≤2000mm， Height≤500mm |
| Disk | ≤5T | Diameter≤2500mm | |
| Ring | ≤5T |
Outer diameter of quenching parts≤2500mm， Outer diameter of non-quenching parts≤4000mm， Height≤500mm |
|
| Cylinder | ≤5T |
Outer diameter 200- 800mm，Length≤2000mm; Outer diameter 801- 2000mm，Length≤1500mm; |
|
| Axle | ≤8T |
Length≤7000mm， Diameter≤800mm |
|
| Backward Extrusion | Forged Pipe |
Outer diameter≤830mm， Inner diameter≤650mm， Length≤1800mm |
|
| Closed Die Forging | Common Closed Die Forgings | - | PVA≤3.0 ㎡（Diameter≤1950mm） |
| Complex Closed Die Forgings | - | PVA≤1.5 ㎡（Diameter≤1400mm） |
7050 Aerospace Grade Aluminum Machining
Performance of 7050 Aluminum Forgings
| Mechanical behavior | Metric | imperial |
| Hardness, Brinell | 140 | 140 |
| Hardness, Knoop | 177 | 177 |
| Tensile Strength, Ultimate | 524 MPa | 76000 psi |
| Tensile Strength, Yield | 469 MPa | 68000 psi |
| Elongation at Break | 11% | 11% |
| Modulus of Elasticity | 71.7 GPa | 10400 ksi |
| Poissons Ratio | 0.33 | 0.33 |
| Shear Modulus | 26.9 GPa | 3900 ksi |
| Shear Strength | 303 MPa | 44000 psi |
Chemical composition of 7050 aluminum forgings
| Element | Mass Fraction % |
| Aluminum | 86.4-90.0 |
| Zinc | 6.0-7.0 |
| Magnesium | 2.1-2.9 |
| Copper | 1.4-2.0 |
| Manganese | ≤0.10 |
| Chromium | ≤0.04 |
| Titanium | ≤0.06 |
| Germanium | ≤0.06 |
| Strontium | ≤0.03 |
| Any other single impurity | ≤0.05 |
| Total impurities | ≤0.15 |
Physical property for 7050 aluminium forgings
| Physical Property | value |
| Melting Point, °F(°C) | 1060-1180 (571-638) |
| Thermal Expansion, in/in/°F(µm/m/°C) | 13.1*10-6 (23.6*10-6) |
| Electrical Resistivity, µohm-cm | 3.5 |
| Thermal Conductivity, Btu/(ft * h * °F) (W/m * K) | 79.4 (137) |
| Specific Heat, Btu/(lb * °F) (J/kg * K) | 0.24 (1005) |
| Density, lb/in^3 (g/cm3) | 0.101 (2.81) |
| Elastic Modulus, ksi (GPa) | 10.8*10-6 (74.5) |
| Poisson's Ratio | 0.33 |
Melting property requirements for 7050 forgings
| Melting Property | value |
| Solidus Temperature, °F(°C) | 1010 (544) |
| Liquidus Temperature, °F(°C) | 1090 (588) |
| Brazing Temperature Range, °F (°C) | 1125-1175 (607-635) |
Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.
Get a quote
Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.
Get a quoteGuarantee of Chalco promise
- Surface Quality: no scratches, pits, cracks, or other surface defects that affect the serviceability of the product.
- Workability: good formability and machinability.
- Fracture Toughness: minimum KIC of 28 ksi√in (31 MPa√m).
Application of 7050 aluminum forgings
Application of 7050 T74 aluminum forgings
This type of aerospace aluminum forgings has high strength, excellent corrosion resistance and fatigue performance, and is commonly used to manufacture aircraft fuselages, wing-fuselage structures, wing frames, as well as spacecraft and missiles.
Application of 7050 T7452 aluminum forgings
Compared to T74 type, this type of aerospace aluminum forgings has better plasticity and toughness, and is usually used to manufacture structural components that require high strength, corrosion resistance and fatigue performance, such as aircraft wings, flaps, control surfaces, etc.
To reduce heat treatment stress and prevent quenching deformation
pre-compression should be applied to free forgings after solution treatment and before artificial aging, with a permanent deformation of 1.5%-5.0% to eliminate internal stresses.
The formability of this alloy is similar to that of 7075 aluminum alloy. If the initial forging temperature is too high, hot forging is prone to occur, which is unfavorable for the hammer forging process.Quick Quote