Semi-finished products in the form of aluminum sheets D16AT, D16AM D16 and D16 are made of wrought aluminum alloy brand. to the chemical composition of the alloy requirements are set GOST 4784. The aluminum content of the alloy D16 is 90,90-94,70%, copper - 3,80-4,90%, magnesium - 1.20-1.80%. alloy Weight - 2.77 kg / l. Sheets D16AT, D16AM and D16 differ in the method of manufacturing and material:
D16 - clad, without heat treatment;
D16AM - with normal plating annealed;
D16AT - with normal plating, hardened, naturally aged. Specification for aluminum sheets mounted GOST 21631-76. According to the specifications of the aluminum sheet can have the following dimensions:
sheets with a thickness of 0.5-0.7 mm allowable width is 1000, 1200, 1400, 1500 and 1600 mm, length - 2000-5000 mm;
sheets with a thickness in excess of 0.7 mm to 10.5 mm allowable width - 1000, 1200, 1400, 1500, 1600, 1800 and 2000 mm, length - 2000-7200 mm. For cladding sheets and D16AM D16AT on each side of the cladding material is applied on the basis of aluminum (not less than 99,30% by weight). The thickness of the cladding layer depends on the thickness of the sheet and is in normal plating not less than 2% of its value. Mechanical properties of the sheets under tension due to their too thick. D16AT sheets with thickness up to 1.9 mm have a strength of 405 MPa, a yield strength of 270 MPa and elongation of 13%. In thicker sheets, the figures are 425 MPa, 275 MPa and 10-11% respectively. Marking is applied to the aluminum sheet D16 paint or distracting. Marking includes:
aluminum brand;
state of the material;
sheet thickness;
batch number;
OTC stamp.

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