Plates made of armour steels are manufactured in several degrees of hardness, or shooting resistance. Armours of middle hardness are used mostly for armouring heavy vehicles; armours of high hardness are used for lightweight military vehicles, resistant mailny against infantry weapons. Armour plates made of martenzitic steels can be welded utilizing usually manual arc welding or automatic submerged-arc welding methods. An advantageous method is shielded welding.

Grade	Min. Yield Strength ReH 1) [MPa]	Tensile Strength Rm 1) [MPa]	Min. Elongation 1) [%]	CEV 2)	HB Hardness	Condition after heat treatment	Dimension table No.
43 PSM (A) 49 S (A) 42 SM (A) 52 S (A)	400	600	25	0,95	180-250	soft annealed	table 2
	850	1 050	7		280-340	heat treated
2 P (A) V 2-9	450	650	25	0,65	200-250	soft annealed	table 2
	1 200	1 400	10		370-430	heat treated

1) approximate values
2) CEV values for information only