Mars 240: High hardness steel (500 HB) for ballistic protection

Mars 240 is a high-hardness steel (500HB) with optimal compromise ballistic resistance properties and workability for applications:
• very light weight vehicle structures to medium vehicles
• add on armour, removable all thicknesses and all applications
• boxes, containers, shelters, storage tanks, door frames…

Standard
Bozhong: Mars 240
Mars 240 satisfies requirements of following specifications:
• France : NF A 36-800-TDH 2
• Germany : TL 2350-000 Quality Z
• U.K. : DEF STAN 95-24 Class 3
• USA : MIL DTL 46100 RevE

Chemical Analysis

C	S	P	Si	Mn	Ni	Cr	Mo
≤ .30	≤ .002	≤ .010	≤ .4	≤ 1	≤ 1.8	≤ 1.6	≤ .6

Chemical composition depends on thickness range (particularly on Ni and Cr contents) and, possibly, on customer’s specification

Mechanical Properties

As supplied	Hardness	Yield Strength		UTS		Elongation	Charpy V -40°Transversal to rolling direction
	HB	MPa	ksi	MPa	ksi	5d(%)	J	ft.lbs
Minimum values	477-534	≥1100	≥ 160	≥ 1600	≥ 232	≥ 9	≥16	≥ 12
Typical values	495	1300	195	1700	250	12	28	21