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Maximum Allowable Material Thickness to be Punched
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Hot Rolled C-1095 = 0.32 inches Hot Rolled C-1095 Annealed = 0.40 inches Mild A-7 = 0.56 inches Boiler Plate = 0.56 inches Structural A-36 = 0.56 inches Struct Corten (ASTM A242) = 0.50 inches Cold Rolled C-1018 = 0.56 inches Hot Rolled C-1050 = 0.51 inches Stainless Annealed = 0.51 inches Stainless 304 Hot Rolled = 0.51 inches Stainless 316 Cold Rolled = 0.51 inches
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