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	PRODUCT DATA of AA2024-T8 plate, extrusions

Material

AA2024-T8 plate, extrusions

Product Type

plate, extrusions

Chemical Composition

4.5% Cu, 1.5% Mg, 0.6% Mn, Rem. Al

Name of Manufacturer

Corus

	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

	THERMAL PROPERTIES

Temperature Range

121 °C(maximum)

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

General Corrosion Status

Requires specific corrosion protection

Stress Corrosion Status

Moderate 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 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

	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 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.