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PRODUCT DATA of AA7001-T6
MaterialAA7001-T6
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-T6 and AA 7001-T651
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 Resistivity5.6e-8 ohm.m
THERMAL PROPERTIES
Thermal Conductivity126 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 StatusLow Resistance to SCC: Table 3
Remark:Not suitable for structural applications. For high stress applications, see ECSS-Q-70-36A
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