bulk 2013. a diverse selection of materials & hardness values are available to fight against the...
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Bulk 2013
A diverse selection of materials & hardness values are available to fight against the wear phenomena
Hardness HB HV HRC
Ceramic frit - 1600 / 2500 -
Nitriding steel - 850 / 950 67
Case hardened steel - 780 62 / 64
Overlay (Cr cast iron) - 760 60 / 62
Cr (20 / 25 %) cast iron - 840 60 / 65
White cast iron 570 600 55
Wear resistant steel 500 / 540 570 54
When you have to process these options, it’s another game
Ability to:
2Flame cut?
2Weld?
2Roll & bend?
2Drill, machine & tap?
2Install and repair?
CREUSABRO DUAL 52 HRC
CREUSABRO 8000 50 HRC
CREUSABRO 4800 44 HRC
Abracorr 30 37 HRC
Abramax Mu 32 HRC
What is a water quenched steel?
Brands include:
ABRO
ABRAZO
DILLIDUR
RAEX
DURASTAT
XAR
HARDOX
Our proposal is to offer alternative grades widely used across Europe & ROW:Low carbon alloy with Mn, Si, Cr, Mo, Ni, Ti
2 Hardness intentionally limited at delivery stage
2 Hardening effect occurring under impact and/or pressure
2 Can be profiled using all standard processes
2 Can be rolled & bent
2 Easier to drill, machine, countersink…
2 Possible to fix
Working T°C
Grades Angle
< 30°
Angle
>30° - 90°
Abrasion
wet
Abrasion Corrosion PH ≤6
Workablity*
< 600 Abracorr
Cobranox 12
> 650
< 1200
< 1100
Ceramic Refractory
Aisi 310
Aisi 314
+++
+°
+°
(-)(-)°
(-)°
+++
+++
+++
1
2
2
450
< 680
Ceramic
Duretal65
Duretal45CREUSABRO DUAL
+++
+++
+++
+++
(-)
++
++
++++
++
+++
++
++
+++
+
+
+
3
4
4
2
< 500 Abracorr 30
Cobranox 12
++
++
+++
+
+++
+++
++
+
4
3
>250
< 450
CREUSABRO 8000CREUSABRO 4800
Abramax mu
Roc 250
++
++
++
++
+++
++
+
+
++
++
++
++
(-)
(-)
(-)
(-)
3
4
4
5
< 300 Cobranox 35 ++ + +++ +++ 4
< 250 Bimetal 90
Dillidur 500 V
Dillidur 400V
+++
++
++
+++
++
++
+
+
+
(-)
(-)
(-)
1
2
3
< 200 X120Mn12 ++ +++ + (-) 1
< 80 Rubber
Polyurethane
Polyethylene
++
+++
++
+++
++
+
+++
+++
+++
++
++
++
5
4
5
*rate of capacity to work with 1 up to 5(5= easiest )
°grades normally impossible to classify in the anti-abrasion rang nevertheless used as the ultimate solution at high T°. If maintained for long periods at T° 650/950°C be aware of the risk of structure degradation ( sigma phase= brittleness)
HYS according EN STANDARDquenched and tempered
Abrasion resistant grade via standard water/oilquench without tempering
Grades UTS YPE% (mini)
Grades
Indicative valueHardness (HB)
UTS YP E%
Dillimax 1100 1200 – 1500 > 1100 10
CREUSABRO 8000 1630 1250 12 540
Dillidur 500V 1600/1650 1250/1300 8 440/510
Dillimax 965 S960QL 980 – 1150 > 960 12
CREUSABRO 4800 1200 900 12 430
Dillidur 400V 1300/1350 1000/1100 12 360/440
Dillimax 890 S890QL 940 – 1100 > 890 12
Dillimax690/Imex700S690QL
770 – 940 > 690 14
Abramx Mu 920/1000 > 650 12 270/350
Roc 250 800 490 14 200/260
Dimc 460/Imex490S460ML
530 – 720 > 460 17
Imex 390 S355K2G3 450 – 610 > 355 22
* Hardness reached due to TRIP effect + 70 HB
OK, so they are the technical aspects of the various options to resist the wear phenomenon.
How is CREUSABRO successful in real life environments?
Case study N°1 in chromium quarry, Turkey:The tested CREUSABRO 8000 against the industry standard water quenched grade 450 HB
The results of the two tests show a strong wear lifetime difference, which deserves a mention
Wheel Loader N°1 Chromite stock area
CREUSABRO 8000 549 hWQ 450 HB 454 h(549 - 454) / 454 = % 21 + life time
Wheel Loader N°2 Ferrochrome stock area
CREUSABRO 8000 605 hWQ 450 HB 315 h(605 - 315) / 315 = % 92 + life time
ChromiteDensity: 4.1 - 4.9 Hardness: 5.5 mohsGrain size: 15 / 60 mm
FerrochromeDensity: 7.2 Hardness: 7 - 8 mohsGrain size: 200 / 500 mm
In both cases the lifetime differences are mainly linked to the energy of impact, which is strongly depending on the following factors:
2Material density (Stone & Alloy), which has a strong influence on the impact energy level
2Grain size, which offers a significant increase in impact energy
Case Study N°2 Coal fired power station
2 Reduction from square to round
2 Square pipe to handle coal powder
Elbows to handle coal powder just upstream burner
part N° 1 part N° 2
At present we supply:
2EON (Germany)
2ENEL (Italy)
2EDF (France)
2Various in Turkey
and others across Europe for more than 10 years with CREUSABRO 4800 heat resistance < 450 °C
WQ grade cannot work above 250 °C
Case Study N°3 LIEBHERR (OEM - ER 994 B – 771/ 14755)
Application: kit wear parts for heavy duty buckets XXL
Field test: CREUSABRO 8000 versus WQ 500 HB steel from North Europe
— Bucket Equipped with water quenched 500 HB
— Bucket Equipped with CREUSABRO 8000
(3700 - 2540) / 2540 = + 46 % in favour of CREUSABRO 8000
Maintenance needed after 2540 hours Inspected and cleared for use at 2600 hours Test stopped at 3700 hours with no issues
2 Original bucket equipped with WQ 500 HB maintenance needed after 2540 hours
Bucket equipped with CREUSABRO 8000 inspected and cleared for use at 2600 hours. Test stopped at 3700 hours with no issues
(3700 - 2540) / 2540 = + 46 % in favor of CREUSABRO 8000
Test N°4 Cement plant Holcim (GY)We have succeeded with CREUSABRO 8000 against cast Iron (Cr alloyed)
Casting piecesthickness = 50 mm
Liners for a crusher with dynamic separator
CREUSABRO 8000 thickness = 50 mm
At present we supply CREUSABRO to:
2 Cemex (UK & Germany)
2 LaFarge (Italy, France, US, etc)
2 Holcim (Germany)
2 Polysius (Germany)
Primarily for wear and heat resistance.
Changing to CREUSABRO 8000
the customer has increased
the lifetime of the cast parts
from 12 to 30 months
200 HB
500 HB
400 HB
CREUSABRO
Water Quenched Steel
Creusabro M X12O Mn12
370 HB
430 HB
540 HB
470 HB
In service
CREUSABRO Concept has found inspiration from 100 % Austenitic grade
Questions