Designation

C₁₁

C₁₂

C₁₃

C₁₄

C₂₁

C₂₂

C₂₃

C₂₄

C₃₁

C₃₂

C₃₃

C₃₄

C₉₀

Impact Toughness (J)

8.3

8.3

8.4

9.1

8.7

8.7

9.0

10

9.1

9

10

11

9.6