7175 aluminum alloy is an aluminum alloy with high strength and good corrosion resistance. It is composed of elements such as aluminum, zinc, magnesium, copper and chromium.
7175 aerospace aluminum forgings are usually used in the manufacture of aircraft structural parts, engine parts, missile casings, body components and other parts that need to withstand high strength and high temperature.
Why choose Chalco
The quality fully complies with world aviation standards
AMS 4122
AMS 2722
AMS-QQ-A-367
AMS 4148 7175-T6 Die Forgings
AMS 4149 7175-T74 Forgings
AMS 4179 7175-T7452 Forgings
MIL-DTL-46192
The production and management conform to the international aviation quality system
certification
AS9100
OHSAS 18001
ISO14001
ISO9001
FAA
EASA
NADCAP
Our production capabilities
Free forging
Closed die forging
Production requirements of 7075 aerospace aluminum forgings
Selection of raw materials: 7175 aluminum alloy raw materials with high purity and meeting the standard requirements should be selected to ensure uniform composition, low impurity content, and compliance with relevant standards and specifications.
Forging process: 7175 aluminum alloy forgings should adopt a suitable forging process, such as uniform heating, control of forging temperature, forging ratio, etc., to ensure that the internal structure of the forging is uniform and there are no defects.
Heat treatment: 7175 aluminum alloy forgings usually require heat treatment to further improve their performance and strength. Heat treatment, such as quenching, aging, etc., should be carried out according to the requirements of standards and specifications.
Inspection and testing: multiple inspections and tests should be carried out during the production process, such as material composition analysis, mechanical performance testing, ultrasonic flaw detection, magnetic particle flaw detection, etc., to ensure that the forgings meet the requirements of relevant standards and specifications.
Quality control: strict quality control measures should be taken to ensure that each link meets the requirements of standards and specifications to prevent product quality problems.
Environmental protection: the production process should comply with environmental protection requirements, such as the treatment of waste water and waste gas, to ensure that the production process does not pollute the environment.
7175 aviation aluminum forging specifications
| 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 Forg-ings | - | PVA≤1.5 ㎡（Diameter≤1400mm） |
Precautions for purchasing 7175 aviation aluminum forgings
Choose the right supplier: choose a reputable supplier with relevant certifications to ensure that the purchased 7175 aluminum forgings meet the requirements of relevant standards and specifications.
Understand product quality: before purchasing, you should understand the quality of the product, such as composition, heat treatment process, inspection and testing, etc., to ensure that it meets the requirements.
Determining the delivery date and transportation method: negotiate with the supplier to determine the delivery date and transportation method to ensure that the product arrives on time and is not damaged during transportation.
Inspection and acceptance: after receiving the product, inspection and acceptance should be carried out to ensure that the product meets the requirements.
Chemical composition of 7175 aviation aluminum forgings
| Element | Value (%) |
| Si | 0.12 |
| Fe | 0.15 |
| Cu | 1.6-2.4 |
| Mn | 0.10 |
| Mg | 2.1-2.9 |
| Cr | 0.18-0.28 |
| Zn | 5.1-6.1 |
| Ti | 0.06 |
| Al | Remainder |
7175 aviation aluminum forging physical or mechanical properties
| Performance | Value |
| Density | 2.81 g/cm3 |
| Melting point | 463°C |
| Hardness | 120-140 HB |
| Yield Strength | 530-580 MPa |
| Tensile strength | 630-680 MPa |
| Elongation | 7-8% |
| Fracture toughness | 22-30 J/cm2 |
Chalco hot selling 7175 aerospace aluminum forgings
7175 aluminum forgings usually have several tempers, including T6, T74 and T7452, etc. These tempers refer to different heating and cooling treatments, which affect the mechanical properties and corrosion resistance of the material.
7175-T6 aerospace aluminum forgings
7175 aluminum forgings undergo artificial aging treatment in T6 temper to obtain higher strength and hardness.
7175-T74 aerospace aluminum forgings
7175 aluminum forgings undergo multi-step heating and cooling treatment in T74 temper, which can obtain excellent high temperature performance and good crack resistance.
7175-T7452 aerospace aluminum forgings
7175 aluminum forgings undergo two-step heating and cooling treatment in T7452 temper, which can obtain good strength and hardness, and maintain good ductility, suitable for applications that require high strength and good ductility, such as aircraft Structural parts such as fuselage and wings.
Application of 7175 aviation aluminum forgings
175 aluminum forgings are widely used in the aerospace field due to their high strength, corrosion resistance and good weldability. The following are several common applications of 7175 aluminum forgings in aerospace:
Wing and fuselage structure: 7175 aluminum forgings can produce high-strength, lightweight wing and fuselage structures, such as the fuselage shells and wing structures of large passenger aircraft such as 747 and A380.
Landing gear: 7175 aluminum forgings are widely used in aircraft landing gear due to its high strength and fatigue performance.
Engine parts: 7175 aluminum forgings can produce high-strength, corrosion-resistant engine parts, such as turbine blades and turbine disks.
