Inquiry (采购产品): Alum .Bar Hardness Change Jim Sparks Jim, Here is some info on the job we talked about on the phone. We have 743 aluminum witness plates we would like a price for changing the hardness on. At this time we are likely looking to do 200 each to see how they come out. We may be interested in using some of the 743 as material to send to you to make other parts for us. The plates are Rockwell B 55-62 now We need for them to be Rockwell B 42-56 The plate is basically bar stock cut to: 20.62 inch x 3 inches x 2 inches Some have 2 holes drilled part way through and threaded No finish just production run and deburred Crane Dwg 86WQ0516 The material at purchase was: Aluminum Alloy 6061-T6511 (Bar) Rockwell B 49 +/-7 Thanks bob bradley **** Hidden Message ***** Robert Bradley Code 4056, Bldg.143 300 Highway 361 Crane, IN 47522-5001 USA Company: Crane Division, Naval Surface Warfare Center (NSWC Crane) Title: Elec. Tech. Phone: 812-854-6279 Fax: 812.854.3930 E-mail: robert.e.bradley@navy.mil **** Hidden Message ***** robert.e.bradley@navy.mil
