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PRODUCT DATA of AA7001-T75
MaterialAA7001-T75
General InformationObsolete alloy
Chemical Composition0.18 - 0.35Cr, 1.6 - 2.6Cu, 2.6 - 3.4Mg, 6.8 - 8Zn, rem Al
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Equivalent DesignationsUNS A97001, AA 7001
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity2.84
Magnetic PropertiesNonmagnetic
ELASTIC PROPERTIES
Tensile Modulus71 GPa
Shear Modulus27 GPa
Poisson Ratio0.33
ELECTRICAL PROPERTIES
Electrical Volume Resistivity5e-8 ohm.m
THERMAL PROPERTIES
Thermal Conductivity140 W/m.K
Thermal Expansion Coefficient23.4 µstrain/°C
Melting Range477 to 627 °C
Specific Heat0.86 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusModerate Resistance to SCC: Table 2
Remark: Requires Stress corrosion evaluation form
Data Quality: Design Data
Bimetallic CorrosionCan 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 LearnedIn some cases, this alloy responds poorly to black anodising