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PRODUCT DATA of AA5086-H38
MaterialAA5086-H38
Processing and AssemblyStrain hardened and stabilized to a fully hard condition.
Chemical CompositionAl-4Mg-0.5Mn-0.2Cr
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Cost RangeLow
Lot ReproducibilityGood
Equivalent DesignationsAlMg4Mn;AlMg4;A-G4MC; A95086;3.3545; L-3322, AA 5086
Space ExperienceGood
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity2.67
Magnetic PropertiesNonmagnetic
ELASTIC PROPERTIES
Tensile Modulus71 GPa
Shear Modulus26.7 GPa
ELECTRICAL PROPERTIES
Electrical Volume Resistivity5.6e-8 ohm.m
Electrical Conductivity31 %IACS
THERMAL PROPERTIES
Temperature Range66 °C(maximum)
Thermal Conductivity126 W/m.K
Thermal Expansion Coefficient23.8 μstrain/°C
Melting Range585 to 640 °C
Specific Heat0.9 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusNo specific corrosion protection required
Stress Corrosion StatusModerate Resistance to SCC: Table 2
Remark: acc. to ECSS-Q-ST-70-36C
Data Quality: Design Data
EMF vs SCE-0.77 V
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
Remark: ECSS-Q-ST-70C Rev.1 table 5.1
Data Quality: Design Data
SPECIAL RECOMMENDATIONS
Lessons LearnedThe alloy is prohibited for continuous service at temperatures above 66°C because of accelerated aging at elevated temperatures which may increase the susceptibility of the alloy to stress corrosion cracking