2a16 name of the aluminum introductory material: aluminum alloy LY16 
 Standard: the GB/T3190-1996 main characteristics and range of application: This is a heat-resistant hard aluminum, which is characterized by: at room temperature, the intensity is not too high, there is a high creep strength at high temperatures, the alloy strength of the plastic in the hot state, squeeze effect can handle strengthen, spot welding, roll welding performance, the formation of a tendency to crack less significant weld tightness is still a good weld corrosion stability of the lower clad aluminum sheet corrosion stability is still good, extruded semi-finished products of corrosion resistance is not high, in order to prevent corrosion, should be anodized or painted to protect: cutting performance is still good. The purpose is mainly used for parts in 250-350 ℃, as a normal and high temperature welding parts such as bearings to the compressor blades, discs, plates, such as container, airtight position 
 Chemical composition 
 Chemical composition: 
 Silicon of Si: 0.30 
 Iron of Fe: 0.30 
 Copper Cu :6.0-7 .0 
 Manganese of Mn :0.40-0 .8 
 Magnesium of Mg: 0.05 
 Zinc of Zn: 0 .. 10 
 Titanium of Ti :0.10-0 .20 
 Al of Al: margin 
 Mechanical properties 
 Mechanical properties: 
 Tensile strength σb (MPa)) ≥ 355 
 Conditions yield the the strength σ0.2 (MPa)) ≥ 235 
 Sample size: all wall thickness 
 Note: The tubes at room temperature longitudinal mechanical properties