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PRODUCT DATA of AA2024-T81
MaterialAA2024-T81
Product TypePlate
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
Space ExperienceGood
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity2.77
Magnetic PropertiesNonmagnetic
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusModerate Resistance to SCC: Table 2
Remark: acc. to ECSS-Q-ST-70-36C
Data Quality: Design Data
EMF vs SCE-0.71 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
SPECIAL RECOMMENDATIONS
Special RecommendationsFor precipitation hardened parts, heating above the precipitation temperature may result in susceptibility to intergranular and stress corrosion. · The room-temperatureaged conditions may become susceptible to intergranular corrosion if the alloy is heated above 65°C.