The common temper of 6061 aluminum plate include O , T4 , T6 and T651 . The alloy in T651 state is formed after stretching on the basis of T6 state to eliminate the internal stress, so that it is more suitable for processing and forming.
The 6061 T6 aluminum sheet and 6061 t651 aluminum plate are both made of the same alloy.
Both the sheet and the plate can be processed and welded. The main difference between the two lies in the tempering process. The 6061 T6 aluminum sheet is in the T6 temper, meaning that it has been solution heat treated, artificially aged, and then cooled. The 6061 t651 aluminum plate is in the t651 temper, meaning that it has been strain hardened, stress relieved, and then stabilized.
6061-T6 alumium sheet: Cooling after solid solution heat treatment to achieve high strength, no cold processing;
6061-T651 alumium sheet : cooling after solid solution heat treatment to achieve high strength, and then cold stretching machine to eliminate the residual internal stress after heat treatment, to achieve no deformation after deep processing to ensure the precision of machined products.
As 6061-T651 is a high quality aluminum alloy product produced by heat treatment and predrawing process, although its strength can not be compared with 2XXX series or 7XXX series, it has more magnesium and silicon alloy characteristics.
It has good machining performance, excellent welding characteristics and electroplating properties, good corrosion resistance, high toughness and no deformation after processing, dense material without defects and easy polishing, easy color film, oxidation effect and other excellent characteristics.
6061-T651 represents the use of aerospace fixed device, electrical fixed device, communication field, is also widely used in automatic mechanical parts, precision machining, mold manufacturing, electronic and precision instruments, SMT, PC board solder carrier and so on.
The price difference between the two depends on the specific size and quantity of the material. Generally, 6061 t651 aluminum plate is more expensive because it has gone through more processes.