http://www.howardprecision.com/types-of-6061-aluminum-plate-available-from-howard-precision - 6061 Aluminum is the most commonly specified Aluminum for general purpose applications. We stock 6061 Aluminum plate in thicknesses from .250" to 10.00". Since precision plate is a wrought product, it's mechanical and physical properties are superior to cast products. We typically carry Hulamin's M-61 and Kaiser's Select Precision Plate. For more information on the 6061-T651 precision plate, you can download brochure from our website. Contact Us: Howard Precision Metals Inc. 8058 North 87th Street Milwaukee, WI 53224 Phone: (414) 355-9611 http://www.howardprecision.com