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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
MECHANICAL PROPERTIES
Ultimate Tensile Strength675 MPa
Proof Stress (0.2%)625 MPa
Elongation9 %
Fatigue Limit150 MPa
Hardness189 Hv
Shear Strength400 MPa
ELECTRICAL PROPERTIES
Electrical Volume Resistivity5.6e-8 ohm.m
THERMAL PROPERTIES
Thermal Conductivity126 W/m.K
Thermal Expansion Coefficient23.4 µstrain/°C
Specific Heat0.86 J/g.K
Melting Range477 to 627 °C
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