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PRODUCT DATA of AA2024-T3
MaterialAA2024-T3
Chemical Composition4.5% Cu, 1.5% Mg, 0.6% Mn, Rem. Al
Name of ManufacturerCorus
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Equivalent DesignationsAluminium-Copper Alloy (ISO AlCu4Mg1), BS L97, BS L98, AFNOR A-U4G1, DIN 1725, AA 2024
Space ExperienceGood
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity2.78
Magnetic PropertiesNonmagnetic
ELASTIC PROPERTIES
Tensile Modulus73 GPa
Data Quality: Limited Laboratory testing
Shear Modulus27.4 GPa
Data Quality: Limited Laboratory testing
Speed of Sound (longitudinal)6370 m/s
Speed of Sound (transverse)2508 m/s
Acoustic Impedance17.6 MRayl
ELECTRICAL PROPERTIES
Electrical Volume Resistivity5.7e-8 ohm.m
Electrical Conductivity30 %IACS
THERMAL PROPERTIES
Thermal Conductivity121 W/m.K
Thermal Expansion Coefficient23.1 μstrain/°C
Melting Range502 to 638 °C
Specific Heat0.874 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusNot suitable for structural applications. For high stress applications, see ECSS-Q-ST-70-36C
EMF vs SCE-0.62 V
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
Test: ECSS-Q-ST-70C Rev.1 table 5.1
Data Quality: Design Data
Machinabilitygood
WeldingEB welding: good spot & seam: good Other welding methods not recommended
FLUID SYSTEMS COMPATIBILITY
Gaseous Oxygen (GOX)Meets the mechanical impact requirements. No batch test required.
Liquid Oxygen (LOX)Meets the mechanical impact requirements. No batch test required
Nitrogen Tetroxide (N2O4)SCC susceptibility is low and no fluid decomposition
Hydrazine (HDZE)SCC susceptibility is low and no fluid decomposition
SPECIAL RECOMMENDATIONS
Special RecommendationsFor precipitation hardened parts, heating above the precipitation temperature may result in susceptibility to intergranular and stress corrosion. · The room-temperature aged conditions may become susceptible to intergranular corrosion if the alloy is heated above 65°C.