Wear Resistant Steel: Material Data Sheet, Edition April 2016
Wear Resistant Steel: Material Data Sheet, Edition April 2016
Wear Resistant Steel: Material Data Sheet, Edition April 2016
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Material data sheet, edition April 2016
DILLIDUR 500 is a wear resistant steel with a nominal hardness of 500 HBW in delivery condition ex works.
DILLIDUR 500 is preferentially used by the customers where very high resistance to wear is required together
with good workability and especially good weldability.
Examples of application: earth moving and loading machines, dredgers, skip cars, conveying plants, trucks,
cutting edges, knives and breakers, waste elimination and recycling plants.
Product description
Range of application
DILLIDUR 500 can be delivered in thicknesses from 8 mm (1/3 in.)2 to 100 mm (4 in.)2, according to the
dimensional program. Other dimensions may be possible on request.
Chemical composition
For the ladle analysis, the following limiting values in % are applicable:
C Si Mn P S
0.30 0.70 1.60 0.025 0.010
Depending on thickness, the following alloying elements may be used singly or in combination:
Mo Ni Cu Cr V Nb B
0.50 1.0 0.30 1.50 0.08 0.05 0.005
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The current version of this material data sheet can be also found on http://www.dillinger.de.
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The approximately converted values in brackets are for information only.
Delivery condition
Controlled water quenched.
Hardness
Brinell surface hardness at room temperature:
470 - 530 HBW for plate thicknesses 30 mm (1.2 in.)3
450 - 530 HBW for plate thicknesses > 30 mm (1.2 in)3
In spite of their high tensile properties, DILLIDUR steels are not intended for safety relevant components. For
this purpose high strength steels DILLIMAX are available.
Charpy-V impact test on longitudinal specimens (indicative values for 20 mm plate thickness)
Charpy impact energy: 25 J at -20 C (-4 F)3
Testing
Brinell surface hardness tested once per heat and 40 t.
3
The approximately converted values in brackets are for information only.
Processing
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 1011-2 (Welding) and CEN/TR 10347 (Forming) as well as
recommendations regarding job safety in accordance with national rules should be observed while considering
the higher strength and hardenability.
Cold forming
DILLIDUR 500 can be cold formed by bending in spite of its high hardness and strength. It should be paid
attention to the fact that with increasing yield strength, the required forces for the forming operation also
increase, even if the plate thickness remains unchanged. The spring-back also increases. Grinding of the flame
cut or sheared edges in the bending area is recommended to avoid crack initiation. In order to avoid the risk of
cracking from the edges, flame cut or sheared edges should be ground in the area that is to be cold formed. It is
also advisable to round the plate edge slightly on the outside of the bend coming under tension stress during
bending.
During the processing, the necessary safety measures have to be taken, so that nobody will be exposed to a
danger by a possible fracture of the work piece during the forming process.
The following geometries can usually be achieved by cold forming without the formation of surface defects
(where t is the plate thickness):
Heat treatment
The following diagram shows the general changes in hardness or strength values in accordance with the heat
treatment temperature:
1 800
Indicative values for 20 mm plate thickness
1 600
Hardness [HBW] resp. Rm and Rp0,2 [MPa]
Tensile strength
1 400
1 200
800
600
Nominal hardness in the delivery condition
400
Hardness
200
0
0 100 200 300 400 500 600
Tempering temperature [C]
Tolerances
Unless otherwise agreed, the tolerances are in accordance with EN 10029, with class A for thickness.
Surface quality
Unless otherwise agreed, the provisions in accordance with EN 10163-2, class A2 are applicable.
General note
If special 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 data sheet is a product description. This data sheet is updated at irregular intervals. The
current version is relevant. The latest version is available from the mill or as download at www.dillinger.de.
For more information about application and processing of DILLIDUR 500, please refer to our technical
information THE CONCEPT TO COMBAT WEAR AND TEAR DILLIDUR.