Aluminium, ASTM & FED-QQ
QQ-A-200/11 T73 Bar & Extrusion
초고강도 항공우주용 알루미늄 합금.
A very high strength aerospace aluminium alloy with, depending upon temper, yield strength of 24-68 ksi (165 – 465 MPa) and tensile strength of 40-78 ksi (275 – 540 MPa).
This alloy is used where high strength is required and where good resistance to general corrosion is NOT important.
PDF 다운로드
범위
참고 사항
원하는 내용이 표시되지 않으면 다음 연락처로 문의하세요. 지역 서비스 센터 특정 요구 사항에 따라.
QQ-A-200/11 T73 Aluminium Related Specifications
| System / Standard | Country / Region | Grade / Designation |
| AA | USA | 7075-T73 |
| UNS | International | A97075 (7075-T73) |
| EN / DIN | Europe | EN AW-7075-T73 / 3.4365 |
| EN Name | Europe | AlZn5.5MgCu-T73 |
| ASTM B221 | USA | 7075-T73 extruded bar, rod, shapes & tube |
| BS (Aerospace) | UK | L95 (7075 extruded alloy, T73 where specified) |
| AFNOR | France | A-Z5GU-T73 |
Properties
화학 성분
Alloy QQ A 200/11
SAE AMS QQ-A-200/11
| Chemical Element | % Present |
| Silicon (Si) | 0.00 - 0.40 |
| Iron (Fe) | 0.00 - 0.50 |
| 구리(Cu) | 1.20 - 2.00 |
| 망간(Mn) | 0.00 - 0.30 |
| 크롬(Cr) | 0.18 - 0.28 |
| Magnesium (Mg) | 2.10 - 2.90 |
| Zinc (Zn) | 5.10 - 6.10 |
| 티타늄(Ti) | 0.00 - 0.20 |
| Other (Each) | 0.00 - 0.05 |
| Others (Total) | 0.00 - 0.15 |
| Aluminium (Al) | Balance |
General Physical Properties
| Physical Property | 가치 |
| 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 |
애플리케이션
- Aerospace components
- High technology applications
- Defence components
Characteristics
- High strength
- Very good machinability
- Weldable using resistancce, spot & beam methods
- Poor resistance to atmospheric corrosion
Additional Information
기계적 특성
These mechanical properties are for bar in the T73 temper.
| Diameter (mm) | Proof Strength (Min) | Tensile Strength (Min) | Elongation % (Min) |
| Up to & incl. 6.3 | 400 | 469 | 7 |
| Over 6.3 up to & incl. 38 | 420 | 483 | 8 |
| Over 38 up to & incl. 76.2 | 407 | 476 | 8 |
| Over 76.2 up to & incl. 114 | 393 | 469 | 7 |
