DIFENDER 600 – High‑Strength Bullet‑Resistant Steel

DIFENDER 600 is used as an add-on protection to destroy the bullet core and prevent the penetration into softer (armoured) steels. Due to its performance the steel is used by the customers for civil and military protection systems.

The material cannot be formed by cold bending, because of its high hardness. One would be exposed to a danger by a possible fracture of the work piece during the forming process.

The plates are delivered in the quenched and tempered condition.

General technical delivery requirements: Unless otherwise agreed, the general technical delivery requirements in accordance with EN 10021 apply.

If particular requirements, which are not covered in this material data sheet, are to be met by the steel due to its intended use or processing, these requirements are to be agreed before placing the order.

The information in this technical data sheet is a product description. This material data sheet is updated at irregular intervals. The current version is available from the mill or as download at www.dillinger.de.

DIFENDER 600 is delivered in a heat treatment condition which is ready for assembly. Subsequent heat treatment above 150 °C impairs its ballistic properties and is therefore not permissible.

DIFENDER 600 is suitable for machining. In view of its high delivery hardness a lower cutting speed must be anticipated.

DIFENDER 600 can be supplied in the thickness range between 6-25 mm. Dimensions are to be agreed during inquiry.

Identification of plates: Unless otherwise agreed the marking is carried out via steel stamps with at least the following information:

The entire processing and application techniques are of fundamental importance to the reliability of the products made from this steel. The user should ensure that his design, construction and processing methods are aligned with the material, correspond to the state-of-the-art that the fabricator has to comply with and are suitable for the intended use. The customer is responsible for the selection of the material. The recommendations in accordance with EN 1011 should be observed. The high tensile properties of the armoured steel can lead to a higher crack probability while processing.

The properties under ballistic impacts have to be agreed.

Unless otherwise agreed, the indications in accordance with EN 10163-2, class B3, apply. You can find more information in our brochure „Shot blasted and primer coat-ed heavy plates“ (http://www.dillinger.de/downloads)."

The heat input during welding and thermal cutting can lead to a decrease in hardness in a small area adjacent to or in the weld seam. This can have an impact on the bullet resistance properties of DIFENDER 600. The manufacturer is advised to take this into account in his design.

Unless otherwise agreed the following tolerances apply:

for the width in the range -0 / +12 mm.

For width and length tolerances EN 10029 table 2 and 3 will apply.

Flatness tolerances for instance according EN 10029 to be agreed during inquiry.