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PRODUCT DATA of AA7049-T73
MaterialAA7049-T73
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Equivalent DesignationsAA 7049
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Magnetic PropertiesNonmagnetic
ELASTIC PROPERTIES
Tensile Modulus71.7 GPa
Shear Modulus27.6 GPa
THERMAL PROPERTIES
Temperature Range66 °C(maximum)
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusHigh Resistance to SCC: Table 1
Data Quality: Design Data
Bimetallic CorrosionCan be used in a non-controlled environment: Al alloys, Cd
Can be used in a clean room environment: Mg, Sn-Pb alloys (all), Sn, Pb, Zn, Be
Needs specific measures: All others
Test: ECSS-Q-ST-70C Rev.1 Table 5.1
Data Quality: Design Data
FLUID SYSTEMS COMPATIBILITY
Gaseous Oxygen (GOX)Meets the mechanical impact requirements. No batch test required.
Liquid Oxygen (LOX)Fails mechanical impact
Nitrogen Tetroxide (N2O4)SCC susceptibility is low and no fluid decomposition
Hydrazine (HDZE)Untested