All data is for information only------(Home)
PRODUCT DATA of AA2124-T8
MaterialAA2124-T8
PrecautionsTypical T851 data from the Aluminium Association (AA). Not for design
Chemical CompositionAl-4.5Cu-1.6Mg-0.6Mn
EXPERIENCE IN PRACTICE
Equivalent DesignationsUNS A92124; 2124-T851
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity2.78
Magnetic PropertiesNonmagnetic
ELASTIC PROPERTIES
Shear Modulus27 GPa
Data Quality:Typical data
Poisson Ratio0.33
Data Quality:Typical data
ELECTRICAL PROPERTIES
Electrical Volume Resistivity4.49e-8 ohm.m
THERMAL PROPERTIES
Temperature Range121 °C(maximum)
Thermal Conductivity151 W/m.K
Thermal Expansion Coefficient22.9 µstrain/°C
Melting Range502 to 638 °C
Specific Heat0.882 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusModerate Resistance to SCC: Table 2
Remark: Requires Stress Corrosion Evaluation Form
Data Quality: Design Data
Bimetallic CorrosionCan be used in a non-controlled environment with: Al+alloys, Cd, Sn-Pb alloys, Sn, Pb
Can be used in a clean room environment with: as above and Mg, Ni, Monel, Inconel, Ni-Mo alloys, 300 series SS, 400 series SS, Ti and Ti alloys, Zn, Be
Needs specific measures: All others
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)SCC susceptibility is low and no fluid decomposition