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PRODUCT DATA of AA2024-T8 plate, extrusions
MaterialAA2024-T8 plate, extrusions
Product Typeplate, extrusions
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
THERMAL PROPERTIES
Temperature Range121 °C(maximum)
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusModerate Resistance to SCC: Table 2
acc. to ECSS-Q-ST-70-36C. Requires Stress corrosion avaluation form
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
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
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.