SPACE 2009
Quality Policy
AS 9120
Dalle
Tôle
Barre ronde
Tube / Extrusion / Profil
7149
AMS 4343 / AlZn8Mg2Cu / 7149 / T73511
| Chemical Properties | % Value |
| Silicon (Si) | 0,00 - 0,40 |
| Chromium (Cr) | 0,18 - 0,28 |
| Manganese (Mn) | 0,00 - 0,30 |
| Magnesium (Mg) | 2,10 - 2,90 |
| Copper (Cu) | 1,20 - 2,00 |
| Titanium (Ti) | 0,00 - 0,20 |
| Iron (Fe) | 0,00 - 0,50 |
| Zinc (Zn) | 5,10 - 6,10 |
| Aluminium (Al) | Balance |
| Physical Properties | Value |
| Density | 2.81 g/cm³ |
| Melting Point | 635 °C |
| Thermal Expansion | 23.5 x 10^-6 /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 134-160 W/m.K |
| Electrical Resistivity | %40 IACS |
7178 aluminum is a strong, high strength material having moderate temperature applications. This alloy was intended primarily for advanced subsonic aircraft applications.
ALLOY DESIGNATIONS
AMS QQ-A-250/21, 7178 has similarities to the following standard designations and specifications ;
Alloy 7178, UNS A97178, ASTM B209
AlZn7MgCu
TEMPER TYPES
7178 is supplied in a wide range of tempers:
- O - Soft
- T6 - Solution heat-treated and then artificially aged.
- T6510 - Solution heat-treated, stress-relieved by controlled stretching (permanent set 1% to 3% for extruded rod, bar, shapes and tube, 0.5% to 3% for drawn tube) and then artificially aged. The products receive no further straightening after stretching.
- T6511 - Same as T6510 except that minor straightening is allowed after stretching to comply with standard tolerances
- T76 - Solution heat-treated and then artificially overaged in order to achieve a good exfoliation corrosion resistance.
- T7651 - Solution heat-treated, stress-relieved by controlled stretching (permanent set 1% to 3% for extruded rod, bar, shapes and tube, 0.5% to 3% for drawn tube) and then artificially overaged in order to achieve a good exfoli-ation corrosion resistance. The products receive no further straightening after stretching.
- T76510 - Solution heat-treated, stress-relieved by controlled stretching and then artificially overaged in order to achieve a good exfoli-ation corrosion resistance. The products receive no further straightening after stretching.
- T76511 - Solution heat-treated, stress-relieved by controlled stretching and then artificially overaged in order to achieve a good exfoli-ation corrosion resistance. The products receive no further straightening after stretching except that minor straightening is allowed after stretching to comply with standard tolerances.
SUPPLIED FORMS
7178 is supplied in plate, sheet and extrusions.
- Plate
- Sheet
- Tube / Extrusions
DELIVERY:
| Mechanical Properties | |||
| Thickness (mm) | Proof Strength (Min.) | Yield Strength (Min.) | Elongation A50 mm % |
| Over 6.3 up to & incl. 12.6 | 462 MPa | 538 MPa | %9 |
| Over 12,7 up to & incl. 25,4 | 469 MPa | 538 MPa | %7 |
| Over 25,4 up to & incl. 50,8 | 462 MPa | 531 MPa | %6 |
| Over 50,8 up to & incl. 63,5 | 441 MPa | 524 MPa | %6 |
| Over 63,5 up to & incl. 76,2 | 421 MPa | 496 MPa | %5 |
| Over 76,2 up to & incl. 88,9 | 400 MPa | 490 MPa | %5 |
| Over 88,9 up to & incl. 101,6 | 372 MPa | 462 MPa | %3 |
Calculateur de Poids