2A14 Aluminum alloy (LD10)
2A14 Duralumin profile:
What is 2A14 made of? In terms of chemical composition and properties, 2A14 is both duralumin and forged aluminum alloy, which can be strengthened by heat treatment. After solution treatment and artificial aging, it has high strength, good weldability and plasticity, as well as good machinability, but the corrosion resistance is average.
2A14 Aluminum alloy chemical composition:
Chemical elements Si Fe Cu Mn Mg Zn Ni Ti single total AL
Content (%) 0.6 1.2 0.7 3.9 4.8 0.4 1 0.4 0.8 0.3 0.1 0.15 0.05 0.15 allowance
2A14 Aluminum alloy physical properties:
Line ledger coefficient specific heat thermal conductivity electrical conductivity magnetic density
22.5 838J 159W without 43ρ without magnetism 2.8
Mechanical properties of 2A14 aluminum alloy -- tensile test results at room temperature are as follows:
Compressive strength Yield strength elongation shear strength torsional strength Shear modulus Poisson's ratio hardness HB elastic modulus
380-460m 245-340m 20% 290M 343M 27GPa 33μ 45-120 71GPa
2A14 aluminum alloy application:
2A14 aluminum alloy is used in the manufacture of free forgings and die forgings bearing high loads, as well as for large frames, Bridges, large shells, automobile structural parts, etc.
2A14 aluminum alloy factory status:
2 series duralumin factory status O, T4, T6, H12, H14, H18, H112, F
2A14 Aluminum alloy/aluminum plate/aluminum rod/aluminum strip/aluminum coil/aluminum foil/aluminum tube/aluminum material
Material name: Aluminum and aluminum alloy extruded bar (≤22mm,H112, T6 state)
Brand: 2 a14
Standard: GB/T 3191-1998
● Features and scope of application:
2A14 belongs to both duralumin and forged aluminum alloy in terms of composition. Compared with 2A50, due to higher copper content, the alloy has higher strength and better thermal strength, but the plasticity in hot state is not as good as 2A50. The alloy has good machinability, good performance in contact welding, spot welding and seam welding, and poor performance in arc welding and gas welding. Heat treatment can be strengthened, with extrusion effect; Corrosion resistance is not high, artificial aging has a tendency to detect corrosion. ● Chemical composition:
Aluminum Al: allowance
Silicon Si: 0.6 ~ 1.2
Cu: 3.9 ~ 4.8
Mg: 0.40 ~ 0.8
Zinc and zinc: 0.30 or less
Mn: 0.40 ~ 1.0
Ti Ti: 0.15 or less
Ni Ni: 0.10 or less
Iron Fe: 0.000 ~ 0.700
Note: Single :≤0.05; Total: 0.10 or less
● Mechanical properties:
Tensile strength σ B (MPa) : ≥440
Elongation δ5 (%) : ≥10
Note: Longitudinal mechanical properties of bar at room temperature
Sample size: bar diameter (square bar, hexagonal bar inner circle diameter)≤22
● Heat treatment specification:
1) Homogenizing annealing: heating 475 ~ 490℃; Keep warm for 12-14h; Furnace cooling. 2) Complete annealing: heating 350 ~ 400℃; The insulation time is 30 ~ 120min depending on the effective thickness of the material. At the speed of 30 ~ 50℃/h, the furnace is cooled to 300℃, and then air cooled. 3) Rapid annealing: heating 350 ~ 460℃; Holding time 30-120min; Air cooling. 4) Quenching and aging: quenching 495 ~ 505℃, water cooling; Natural aging 96h at room temperature.
Standards
2014 aluminium alloy is discussed in the following standards:[
ASTM B 209: Standard Specification for Aluminium and Aluminium-Alloy Sheet and Plate
ASTM B 210: Standard Specification for Aluminium and Aluminium-Alloy Drawn Seamless Tubes
ASTM B 211: Standard Specification for Aluminium and Aluminium-Alloy Bar, Rod, and Wire
ASTM B 221: Standard Specification for Aluminium and Aluminium-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
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