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PRODUCT DATA of AA7050-T736
MaterialAA7050-T736
General InformationAluminium-Zinc-Copper-magnesium Alloy which has a good combination of strength, fracture toughness and corrosion resistance
Product TypeDie forging
Chemical CompositionAl-6.2Zn-2.25Mg-2.3Cu-0.12Zr
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Cost RangeLow
Equivalent DesignationsAA 7050, UNS A97050
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Magnetic PropertiesNonmagnetic
ELASTIC PROPERTIES
Tensile Modulus70.3 GPa
THERMAL PROPERTIES
Thermal Conductivity154 W/m.K
@ Room temperature
Melting Range488 to 629 °C
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion Status Moderate 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