SPACE 2009
Quality Policy
板/板
钣金
棒条/金属板
管道/型材
7178
ASTM B221 / AlZn7MgCu / 7178 / T6511
| 化学性质 | % 值 |
| Silicon (Si) | 0,00 - 0,40 |
| Chromium (Cr) | 0,18 - 0,28 |
| Manganese (Mn) | 0,00 - 0,30 |
| Magnesium (Mg) | 2,40 - 3,10 |
| Copper (Cu) | 1,60 - 2,40 |
| Titanium (Ti) | 0,00 - 0,20 |
| Iron (Fe) | 0,00 - 0,50 |
| Zinc (Zn) | 6,30 - 7,30 |
| Aluminium (Al) | Balance |
| 物理特性 | 值 |
| Density | 2,83 g/cm³ |
| Melting Point | 479 °C |
| Thermal Expansion | 23.5 x 10^-6 /K |
| Modulus of Elasticity | 71 GPa |
| Thermal Conductivity | 130 W/m.K |
| Electrical Resistivity | 31% IACS |
| 机械性能 | 值 |
| Proof Strength | 560 MPa |
| Yield Strength | 630 MPa |
| Shear Strength | 370 MPa |
| Elongation A50 mm | 5% |
| Hardness | 160 HB |
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
交货:
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