General
Property | Value | Comment | |
---|---|---|---|
Carbon equivalent (CET) | 0.3 [-] Show Supplier Material materials with Carbon equivalent (CET) of 0.3 [-] | indicative values for thickness 10 mm | |
0.32 [-] Show Supplier Material materials with Carbon equivalent (CET) of 0.32 [-] | indicative values for thickness 25 mm | ||
0.35 [-] Show Supplier Material materials with Carbon equivalent (CET) of 0.35 [-] | indicative values for thickness 40 mm | ||
0.36 [-] Show Supplier Material materials with Carbon equivalent (CET) of 0.36 [-] | indicative values for thickness 80 mm | ||
0.37 [-] Show Supplier Material materials with Carbon equivalent (CET) of 0.37 [-] | indicative values for thickness 120 mm | ||
Carbon equivalent (CEV) | 0.45 [-] Show Supplier Material materials with Carbon equivalent (CEV) of 0.45 [-] | indicative values for thickness 10 mm | |
0.49 [-] Show Supplier Material materials with Carbon equivalent (CEV) of 0.49 [-] | indicative values for thickness 25 mm | ||
0.56 [-] Show Supplier Material materials with Carbon equivalent (CEV) of 0.56 [-] | indicative values for thickness 40 mm | ||
0.63 [-] Show Supplier Material materials with Carbon equivalent (CEV) of 0.63 [-] | indicative values for thickness 80 mm | ||
0.67 [-] Show Supplier Material materials with Carbon equivalent (CEV) of 0.67 [-] | indicative values for thickness 120 mm | ||
Carbon equivalent note | CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/15 and CET = C + (Mn+Mo)/10 + (Cr+Cu)/20 + Ni/40 |
Mechanical
Property | Temperature | Value | Comment |
---|---|---|---|
Charpy impact energy, V-notch | -40 °C | 30 J Show Supplier Material materials with Charpy impact energy, V-notch of 30 J | indicative values for 20 mm plate thickness |
Elongation | 12 % Show Supplier Material materials with Elongation of 12 % | indicative values for 20 mm plate thickness | transverse specimens at room temperature, A5 | |
Hardness, Brinell | 370 - 430 [-] Show Supplier Material materials with Hardness, Brinell of 370 - 430 [-] | HBW | |
Tensile strength | 1200 MPa Show Supplier Material materials with Tensile strength of 1200 MPa | indicative values for 20 mm plate thickness | transverse specimens at room temperature | |
Yield strength | 800 MPa Show Supplier Material materials with Yield strength of 800 MPa | indicative values for 20 mm plate thickness | transverse specimens at room temperature |
Chemical properties
Property | Value | Comment | |
---|---|---|---|
Boron | 0.005 % Show Supplier Material materials with Boron of 0.005 % | max. | |
Carbon | 0.2 % Show Supplier Material materials with Carbon of 0.2 % | max. | |
Chromium | 1.5 % Show Supplier Material materials with Chromium of 1.5 % | max. | |
Copper | 0.3 % Show Supplier Material materials with Copper of 0.3 % | max. | |
Iron | Balance | ||
Manganese | 1.8 % Show Supplier Material materials with Manganese of 1.8 % | max. | |
Molybdenum | 0.5 % Show Supplier Material materials with Molybdenum of 0.5 % | max. | |
Nickel | 0.8 % Show Supplier Material materials with Nickel of 0.8 % | max. | |
Niobium | 0.05 % Show Supplier Material materials with Niobium of 0.05 % | max. | |
Phosphorus | 0.025 % Show Supplier Material materials with Phosphorus of 0.025 % | max. | |
Silicon | 0.7 % Show Supplier Material materials with Silicon of 0.7 % | max. | |
Sulfur | 0.01 % Show Supplier Material materials with Sulfur of 0.01 % | max. | |
Vanadium | 0.08 % Show Supplier Material materials with Vanadium of 0.08 % | max. |
Technological properties
Property | ||
---|---|---|
Application areas | Examples of application: earth moving and loading machines, dredgers, skip cars, conveying plants, trucks, cutting edges, knives and breakers, waste elimination and recycling plants. | |
Chemical composition | Depending on thickness, the following alloying elements may be used singly or in combination: Mo, Ni, Cu, Cr, V, Nb and B | |
Cold Forming | DILLIDUR 400 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 grow, even if the plate thickness remains unchanged. The spring-back also increases. 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): | |
Delivery condtion | Controlled water quenched. Unless otherwise agreed, the general technical requirements in accordance with EN 10021 are applicable. | |
Flame cutting and welding | For flame cutting, the following minimum temperatures should be observed: 75 °C (170 °F) for plate thicknesses from 30 up to 50 mm, 100 °C (212 °F) for plate thicknesses from 50 up to 100 mm and 150 °C (302 °F) for thicker plates. For manual arc welding, basic coated rods having a very low residual moisture should be used (if necessary, drying according to the instruction of the manufacturer should be carried out). Additionally the following reco mmendations are to be considered: | |
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. For more information about application and processing of DILLIDUR 500, please refer to our technical information “THE CONCEPT TO COMBAT WEAR AND TEAR – DILLIDUR”. The current version is available from the mill or as download at www.dillinger.de. | |
Heat Treatment | The diagram above in the picture part of the datasheet shows the general changes in hardness or strength values in accordance with the heat treatment temperature. | |
Hot forming | DILLIDUR 400 obtains its hardness by accelerated cooling from the austenitizing temperature. After hot forming, the same hardness can only be obtained if the steel is quenched again after forming. It is to be expected that the hardness achieved through such a treatment differs from that measured in the delivery condition, because the cooling capacity available during plate manufacturing differs from that available at the fabricator’s works. The steel may be heated to about 250 °C (482 °F) without a substantial drop in hardness. | |
Machining | DILLIDUR 400 can be machined with HSS-drills and especially with HSS-Co-alloyed drills with a satisfactory service life if the drill advance and cutting speed are correspondingly accommodated. | |
Other | DILLIDUR 400 can be delivered in thicknesses from 6 mm (1/4 in.) to 150 mm (6 in.), according to the dimensional program. Other dimensions may be possible on request. Identification of plates Unless otherwise agreed the marking is carried out via steel stamps with at least the following information: | |
Processing history | The steel is fully killed and fine grain treated. | |
Processing methods | 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. | |
Surface condition | Surface quality: Unless otherwise agreed, the provisions in accordance with EN 10163-2, class A2 are applicable. | |
Testings | Brinell surface hardness tested once per heat and 40 t. | |
Tolerances | Unless otherwise agreed, the tolerances are in accordance with EN 10029, with class A for thickness. |