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PRODUCT DATA of AA2024-T4
MaterialAA2024-T4
Chemical Composition4.5% Cu, 1.5% Mg, 0.6% Mn, Rem. Al
Name of ManufacturerCorus
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Cost RangeVery Low
Equivalent DesignationsAluminium-Copper Alloy (ISO AlCu4Mg1), BS L97, BS L98, AFNOR A-U4G1, DIN 1725, AA 2024, UNS A92024
Space ExperienceGood
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity2.77
Magnetic PropertiesNonmagnetic
THERMAL PROPERTIES
Temperature Range121 °C(maximum)
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusLow Resistance to SCC: Table 3
Not suitable for structural applications. For high stress applications, see ECSS-Q-ST-70-36C
Test: ECSS-Q-ST-70-37C
Data Quality: Design Data
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 othersData Quality: Design Data
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.