7475
UNS A97475
Description
Aluminum alloy 7475 is derived from aluminum alloy 7075 to increase toughness (approximately 40% higher than alloy 7075). Although overall properties are similar to 7075, 7475 aluminum alloy offers better corrosion resistance and fatigue characteristics. This alloy offers several metalworking options that include machining, forming, and heat treating. For machining, it has good machining characteristics in the annealed condition and oil base lubricants can be used in this process. For forming, the alloy can be formed using conventional methods and easily formed in the annealed condition than in the heat treated condition. 7475 can be used in shell casings, aircrafts, and many other structures.
Chemical Component
| Al | Fe | Cu | Mg | Mn | Zn | Ti | Cr | Si |
|---|---|---|---|---|---|---|---|---|
| 88.5-91.5% | 0.12% max | 1.2-1.9% | 1.9-2.6% | 0.06% max | 5.2-6.2% | 0.06% max | 0.18-0.25% | 0.10% max |
Basic Information
| Items | 7475 |
|---|---|
| Catalog | ACAM-Al-A027 |
| Density | 2.81 g/cm3 |
| Modulus of Elasticity | 71.6 GPa |
| Poisson's Ratio | 0.33 |
| Specific Heat Capacity | 0.860 J/g-°C |
| Thermal Conductivity | 157 W/m-K |
| Melting Range | 477-635.0 °C |
Material Forms
Alfa Chemistry offers aluminum alloy 7475 in a variety of forms, including Plate, Forgings, Extrusions, etc.
Mechanical Properties
| Items | 7475 |
|---|---|
| Hardness, Brinell | 140 |
| Hardness, Knoop | 177 |
| Hardness, Rockwell A | 51.6 |
| Hardness, Rockwell B | 84 |
| Hardness, Vickers | 162 |
| Ultimate Tensile Strength | 524 Mpa (76000 psi) |
| Tensile Yield Strength | 469 Mpa (68000 psi) |
| Elongation at Break | 11% |
| Shear Modulus | 26.9 Gpa (3900 ksi) |
| Shear Strength | 303 Mpa (44000 psi) |
Specifications
AMS 4107:7050-T74 Die Forging
AMS 4108:7050-T7452 Hand Forgings
AMS 4201: 7050-T7651 Plate
AMS 4333: 7050-T7452 Forgings
AMS 4341: 7050-T73511 Extrusions
AMS 4342: 7050-T74511 Extrusions
ASTM B247
ASTM B316 AIR 9049
DMS-2233
BMS 7-323
Applications
Aluminum alloy 7475 is an ideal aircraft alloy appropriate for fuselage skins, bulkheads and wing parts for commercial, fighter and transport airplanes
* Technical data included herein should be used as a guideline only, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice.
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