Presentation on theme: "Bulk 2013. A diverse selection of materials & hardness values are available to fight against the wear phenomena HardnessHBHVHRC Ceramic frit-1600 / 2500-"— Presentation transcript:
A diverse selection of materials & hardness values are available to fight against the wear phenomena HardnessHBHVHRC Ceramic frit-1600 / Nitriding steel-850 / Case hardened steel / 64 Overlay (Cr cast iron) / 62 Cr (20 / 25 %) cast iron / 65 White cast iron Wear resistant steel500 /
When you have to process these options, its another game Ability to: ̶ Flame cut? ̶ Weld? ̶ Roll & bend? ̶ Drill, machine & tap? ̶ Install and repair?
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 ̶ Hardness intentionally limited at delivery stage ̶ Hardening effect occurring under impact and/or pressure ̶ Can be profiled using all standard processes ̶ Can be rolled & bent ̶ Easier to drill, machine, countersink… ̶ Possible to fix
Working T°C GradesAng le < 30° Angle >30° - 90° Abrasion wet Abrasion Corrosion PH 6 Workablity * < 600Abracorr Cobranox 12 > 650 < 1200 < 1100 Ceramic Refractory Aisi 310 Aisi ° (-) (-)° < 680 Ceramic Duretal65 Duretal45 CREUSABRO DUAL +++ (-) < 500Abracorr 30 Cobranox >250 < 450 CREUSABRO 8000 CREUSABRO 4800 Abramax mu Roc (-) < 300Cobranox < 250Bimetal 90 Dillidur 500 V Dillidur 400V (-) < 200X120Mn (-)1 < 80Rubber Polyurethane Polyethylene *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 STANDARD quenched and tempered Abrasion resistant grade via standard water/oil quench without tempering GradesUTSYP E% (mini) Grades Indicative value Hardnes s (HB) UTSYPE% Dillimax – 1500> CREUSABRO Dillidur 500V1600/ / /510 Dillimax 965 S960QL980 – 1150> CREUSABRO Dillidur 400V1300/ / /440 Dillimax 890 S890QL940 – 1100> Dillimax690/Imex700 S690QL 770 – 940> Abramx Mu920/1000> /350 Roc /260 Dimc 460/Imex490 S460ML 530 – 720> Imex 390 S355K2G3450 – 610> * 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 h WQ 450 HB454 h ( ) / 454 =% 21 + life time Wheel Loader N°2 Ferrochrome stock area CREUSABRO h WQ 450 HB 315 h ( ) / 315 =% 92 + life time Chromite Density: Hardness: 5.5 mohs Grain size: 15 / 60 mm Ferrochrome Density: 7.2 Hardness: mohs Grain 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: ̶ Material density (Stone & Alloy), which has a strong influence on the impact energy level ̶ Grain size, which offers a significant increase in impact energy
Case Study N°2 Coal fired power station
̶ Reduction from square to round ̶ Square pipe to handle coal powder
Elbows to handle coal powder just upstream burner part N° 1 part N° 2
At present we supply: ̶ EON (Germany) ̶ ENEL (Italy) ̶ EDF (France) ̶ Various 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 ( ) / 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
̶ 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 ( ) / 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 pieces thickness = 50 mm Liners for a crusher with dynamic separator CREUSABRO 8000 thickness = 50 mm
At present we supply CREUSABRO to: ̶ Cemex (UK & Germany) ̶ LaFarge (Italy, France, US, etc) ̶ Holcim (Germany) ̶ 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 Mn HB 430 HB 540 HB 470 HB In service CREUSABRO Concept has found inspiration from 100 % Austenitic grade