Wholesale 2219 Aluminum 2219 aluminum rod 2219 Chinese imports of aluminum coil

2014 Aluminum Standard: AISI Features and application range: from 2014 aluminum alloy components look that belongs duralumin and belongs wrought alloy, compared with 2A50, due to higher copper content, so the higher strength, better heat resistance , but the plastic in the hot state is not as good 2A50, 2014 aluminum alloy has good machinability, contact welding, spot welding and seam welding good performance, poor arc and gas welding properties; can be heat strengthened, there is squeezing effect; Corrosion resistance is not high, there is a tendency among corrosion inspection artificial aging. Chemical composition: Al Al: margin silicon Si: 0.6 ~ 1.2 Cu Cu: 3.9 ~ 4.8 Mg Mg: 0.40 ~ 0.8 Zinc Zn: ≤0.30 Manganese Mn: 0.40 ~ 1.0 Titanium Ti: ≤0.15 Ni-Ni: ≤0.10 iron Fe: 0.000 to 0.700 Note: Single: ≤0.05; Total: ≤0.15 Mechanical Properties: Tensile strength σb (MPa): ≥440 Elongation δ5 (%): ≥10 Note: longitudinal bars at room temperature mechanical properties of the sample size: bar timber diameter (square bar, hexagonal bar inscribed circle diameter) ≤22 Heat treatment specifications: 1) homogenization: Heat 475 ~ 490 ℃; holding 12 ~ 14h; furnace cooling. 2) complete annealing: heating 350 ~ 400 ℃; with the effective thickness of different materials, holding time 30 ~ 120min; with 30 ~ 50 ℃ / h speed with furnace cooling to below 300 ℃, and then cooled. 3) rapid thermal annealing: heating 350 ~ 460 ℃; holding time 30 ~ 120min; air cooling. 4) quenching and aging: hardening 495 ~ 505 ℃, water-cooled; natural aging at room temperature for 96h. Status: aluminum and aluminum alloy extruded bars (≤22mm, H112, T6 state)