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PRODUCT DATA of AA2014-T4
MaterialAA2014-T4
General InformationThis is a precipitation hardening alloy with good strength after heat treatment
PrecautionsTypical data from the Aluminium Association (AA). Not for design
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Equivalent DesignationsA-U4SG, Al Cu4SiMg, AlCuSiMn, AlCu4SiMn, 3.1255, 26S, AA 2014
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity2.8
Magnetic PropertiesNonmagnetic
ELASTIC PROPERTIES
Tensile Modulus73 GPa
Data Quality: typical data
Shear Modulus27.4 GPa
ELECTRICAL PROPERTIES
Electrical Volume Resistivity5.1e-8 ohm.m
Electrical Conductivity34 %IACS
THERMAL PROPERTIES
Thermal Conductivity134 W/m.K
Thermal Expansion Coefficient23 μstrain/°C
Melting Range507 to 638 °C
Specific Heat0.869 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusRequires specific corrosion protection
Stress Corrosion StatusLow Resistance to SCC: Table 3
Data Quality: Design Data
Bimetallic CorrosionCan be used in a non-controlled environment with: Al+alloys, Cd, Sn-Pb alloys, Sn, Pb
Can be used in a clean room environment with: as above and Mg, Ni, Monel, Inconel, Ni-Mo alloys, 300 series SS, 400 series SS, Ti and Ti alloys, Zn, Be
Needs specific measures: All others
Test: ECSS-Q-ST-70C Rev.1 table 5.1
Data Quality: Design Data
MachinabilityMachinability is good in the annealed condition, somewhat more difficult in the heat treated conditions
WeldingWelding should be done by inert gas consumable electrode arc method for best results. The alloy is subject to cracking during welding