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	PRODUCT DATA of AA7001-T76

Material

AA7001-T76

Chemical Composition

0.18 - 0.35Cr, 1.6 - 2.6Cu, 2.6 - 3.4Mg, 6.8 - 8Zn, rem Al

	EXPERIENCE IN PRACTICE

Development Status

Commercial Product

Equivalent Designations

UNS A97001, AA 7001

	PHYSICAL PROPERTIES

Crystal Structure

Face centered cubic (fcc)

Specific Gravity

2.84

Magnetic Properties

Nonmagnetic

	ELASTIC PROPERTIES

Tensile Modulus

71 GPa

Shear Modulus

27 GPa

Poisson Ratio

0.33

	THERMAL PROPERTIES

Thermal Conductivity

140 W/m.K

Thermal Expansion Coefficient

23.4 μstrain/°C

Specific Heat

0.86 J/g.K

Melting Range

477 to 627 °C

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

General Corrosion Status

Requires specific corrosion protection

Stress Corrosion Status

Moderate Resistance to SCC: Table 2 Remark: Requires Stress corrosion evaluation form Data Quality: Design Data

Bimetallic Corrosion

Can be used in a non-controlled environment: Al alloys, Cd Can be used in a clean room environment: Mg, Sn-Pb alloys (all), Sn, Pb, Zn, Be Needs specific measures: All others Test: ECSS-Q-ST-70C Rev.1 Table 5.1 Data Quality: Design Data

	SPECIAL RECOMMENDATIONS

Lessons Learned

In some cases, this alloy responds poorly to black anodising.