DILLIDUR400V
DILLIDUR400V
Water quenched steel wear
DILLIDUR400V wear-resistant steel factory delivery average hardness of 400 HBW, the mechanical properties obtained by quenching.
DILLIDUR400V in high-wear environments has been successfully applied, but it also has excellent workability, especially welding performance.
DILLIDUR400V application examples include: loaders, excavators, dump trucks, conveyors, trucks, knife and breaking tool, waste cleaning and recycling plants.
Product Description
Supply size
DILLIDUR400V available thickness from 6mm (1 / 4 inch) to 150mm (6 inches), please see delivery program. Other dimensional requirements can be discussed separately.
Chemical composition (melting analysis),%
C
Si
Mn
P
S
<= 0.20
<= 0.50
<= 1.80
<= 0.025
<= 0.010
With the thickness of the different choice of one or several alloying elements to control the material hardenability:
Mo
Ni
Cr
V
Nb
B
<= 0.50
<= 0.80
<= 1.50
<= 0.08
<= 0.05
<= 0.005
Steel fully killed and fine grain after processing.
Typical carbon equivalent values:
Plate thickness (mm)
<= 25
> 25 <= 30
> 30 <= 50
> 50 <= 90
> 90 <= 150
CEV1)
0.37
0.44
0.54
0.64
0.72
CET2)
0.27
0.30
0.33
0.36
0.38
1) CEV = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15
2) CET = C + (Mn + Mo) / 10 + (Cr + Cu) / 20 + Ni/40
Delivery status
Temperature water quenching
Mechanical properties of the delivery status
Hardness
Room temperature hardness :370-430HBW
Transverse tensile test specimens at room temperature (20MM (0.8 inch) thick steel plate typical values):
Tensile strength: 1300MPa (190ksi)
Yield point: 1000 MPa (145ksi)
Elongation: 12% (1o = 5.65 √ So)
Longitudinal V notch impact test specimens (20MM (0.8 inch) thick steel plate typical values):
Toughness: -40 ° C (-40 ° F), 30J (22ft · lbf)
Lateral bending test specimens (30MM (1.2 inch) thick steel plate typical values):
Formability: bend radius of the core> = 2.0x the thickness of the specimen bending angle of 180 °
Test
Surface of the Brinell hardness test for each furnace once (40t).
Identification plate
Identify at least include: steel factory mark (DILLIDUR 400V) · furnace No. plate No.
Words printed on DILLIDUR400V plate.
Processing performance
Can I use the steel processed products from the trusted root depends on the processing technology and processing techniques used. Process should ensure that the calculation, design and processing methods are in line with the requirements of the material itself, in line with the requirements of the latest processing technology, in line with the requirements of the actual use of the product in the future. Customers should choose appropriate materials, in considering the strength and hardenability of high taking into account the recommendation of EN 1011.
Cold forming
DILLIDUR400V although very hard, but still cold forming. Note, however, with the yield strength increased, the thickness of steel required for the same deformation force and resilience are also rising. Suggested to play Mo edge or cold-formed shear zone cutting edge of the flame to prevent cracking.
Minimum bend radius
The smallest die size opening
Horizontal
3t
10t
Longitudinal
4t
12t
Thermoforming:
Benxi Iron and Steel types by accelerated cooling from the austenitizing temperature to obtain hardness. In hot forming, only to re-hardening is possible to restore hardness. Can be expected, re-quenched hardness obtained with different hardness measured at the factory, this is because when quenching steel production equipment and processing equipment owned by the quenching ability of a difference. Steel plate heated to 200 ° C (390 ° F) so the hardness is not significantly decreased.
Flame cutting and welding:
Flame cutting should follow the following minimum preheating temperature: thickness 30 ~ 50mm, 75 ° C (170 ° F); thickness 50mm or more, 100 ° C (215 ° F).
Should be used in manual arc welding coated electrodes in alkaline residue moisture (if necessary, should be the requirements of welding rod manufacturers drying).
In addition, the following recommendations should also be considered:
In general, 20mm (0.8 inch) thick steel plate for welding without preheating the following. Higher rigidity in the structure to prevent weld cracking is generally recommended for 20mm (0.8 inches) thick steel plate to 125 ~ 175 ° C (255 ~ 344 ° F) preheat temperature. Must avoid 200 ° C (390 ° F) above pre-heating, because it will reduce the hardness (see below).
Weld filler should be in the structure to withstand the loads and the weld as possible within the scope permitted use soft.
Heat treatment:
The following figure shows the hardness or strength with heat treatment temperature of the general changes:
It should be noted, 300 ~ 400 ° C (570 ~ 750 ° F) heat treatment may reduce the room temperature toughness of steel.
Machining
DILLIDUR400V processing using high-speed steel drill bit, especially cobalt alloy high speed steel drill bit. If the use of appropriate speed and penetration rate into the drill, the drill can be satisfied with life.
General technical delivery requirements
Unless otherwise agreed, the general technical delivery requirements applicable to EN 10021 standards.
Tolerance
Unless otherwise agreed, tolerances apply to EN 10029, the thickness of the use of A-level.
Surface quality
Unless otherwise agreed, the application of EN 10163.
General Note:
If the specific use and processing of steel made of this information does not involve other special requirements, please consult with us before ordering. The information on the content of the product description, it will from time to time later.
About DILLIDUR400V application and processing, more detailed information please refer to Technical Manual "DILLIDUR - wear concept."
