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A320 Mechanical Properties

Grade Diameter Tensile,
ksi, min		 Yield,
ksi, min		 Charpy Impact
20-ft-lbf
@ temp		 Elong,
%, min		 RA, %, min
L7 Up to 21⁄2 125 105 -150° F 16 50
L43 Up to 4 125 105 -150° F 16 50
Class 1: B8, B8C, B8M, B8P, B8F, B8T, B8LN, B8MLN All 75 30 N/A 30 50
Class 1A: B8A, B8CA, B8MA, B8PA, B8FA, B8TA, B8LNA, B8MLNA All 75 30 N/A 30 50
Class 2: B8, B8C, B8P, B8F, B8T Up to 3⁄4 125 100 N/A 12 35
7⁄8 – 1 115 80 N/A 15 35
11⁄8 – 11⁄4 105 65 N/A 20 35
13⁄8 – 11⁄2 100 50 N/A 28 45
Class 2: B8M Up to 3⁄4 110 95 N/A 15 45
7⁄8 – 1 100 80 N/A 20 45
11⁄8 – 11⁄4 95 65 N/A 25 45
13⁄8 – 11⁄2 90 50 N/A 30 45