@smartereveryday Best graph i've found for lead:
"High Purity Lead" (99.9951%)
Page 15, WADC TR 57-695
"Determination of the Mechanical Properties of a High Purity Lead and a 0.058% Copper-Lead Alloy"
https://t.co/35ZgS3rL1D
@smartereveryday@twit_tex Looks like percent reduction of area by rolling. Graphs on page 30 and 31. Essentially the amount of cold working the material has been subjected to.
Congrats to SpaceX for completing & documented the 57 items required by the FAA for Flight 2 of Starship!
Worth noting that 6 of the 63 items refer to later flights.