High protection HBW 440 steel - Quardian 440
High protection HBW 440 steel includes the best properties in ballistic resistance with high strength and an average hardness of 400 HBW.
High protection HBW 440 (Quardian 440) is used for the applications such as HBW 440 secured containers, HBW 440 armoured limousines, shape floor all vehicles, ship and frigate construction, valuable transporters, protected buildings, and secured containers. This material complies withNFA 36-800-THD1, MIL DTL 12560,EN 1522, VPAM PM 2007.
High protection HBW 440 is supplied in the following range:
• Thickness: 4 - 40 mm
• Width: 1500 - 3100 mm
NLMK Clabecq carries on the extension of its dimensional program of Quardian 400 in order to propose quickly a thickness range from 3.2 to 50 mm
High protection HBW 440 is delivered as quenched and tempered
Note:Brinell hardness test, HBW according to EN ISO 6506-1, is performed 1 - 2 mm below the plate surface once per heat treatment individual
Other mechanical properties (minimum values)
- Charpy V Impact toughness according to EN 10045-1o27J (longitudinal at -40 °C)
- Tensile properties (MPa)1250-1580
Note: Average of 3 tests. Single value min 70% of specified average.Thickness sub sized Charpy V specimen have been used.