Mil-a-12560 class 2; 6.41 +/- 0.41 tk mil spec all material responses
Mil-a-12560, armor steel, wrought. Homogeneous cl 1 mil spec all material responses
Mil-a-12560, cl 1, armor steel, wrought. Homogeneous mil spec all material responses
Mil-a-12560 mil spec 1st material response and astm a36 national spec 2nd material response
Mil-a-12560 class 1 mil spec single material response