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	PRODUCT DATA of AA2024-T81 Clad

Material	AA2024-T81 Clad
Product Type	Plate
Chemical Composition	4.5% Cu, 1.5% Mg, 0.6% Mn, Rem. Al
Name of Manufacturer	Corus Postbus 10000, 1970 CA IJmuiden, The Netherlands +31 (0) 251 499111 +31 (0) 251 470000 feedback@ corusgroup.com www.corusgroup.com

	EXPERIENCE IN PRACTICE

Development Status	Commercial Product
Cost Range	Very Low
Equivalent Designations	Aluminium-Copper Alloy (ISO AlCu4Mg1), BS L97, BS L98, AFNOR A-U4G1, DIN 1725, AA 2024
Space Experience	Good

	PHYSICAL PROPERTIES

Crystal Structure	Face centered cubic (fcc)
Specific Gravity	2.77
Magnetic Properties	Nonmagnetic

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

General Corrosion Status	Requires specific corrosion protection
Stress Corrosion Status	Moderate Resistance to SCC: Table 2 Remark: acc. to ECSS-Q-ST-70-36C Data Quality: Design Data
EMF vs SCE	-0.71 V
Bimetallic Corrosion	Can 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 Recommendations

For 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.