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Creusabro® Advanced Impact and Abrasion Resistant Steels
Creusabro® steels are genuinely different than classical low-alloyed martensitic abrasion resistant plates.
The soft quenching rates used in the mill fabrication practice:
Creusabro® steels are designed to provide an cost effective combination of wear resistance and easy fabrication.
Creusabro® plates have good industrial experience worldwide, providing longer lifetime of mining equipment (mobile or fixed) or in many other industrial applications. Particularly, Creusabro® plates are well accepted by end-users and workshops who handle the reconditioning of worn equipment. Creusabro® helps to customize buckets, dump trays, crushers, etc to the specific service conditions of each end-user, enhancing machine’s performance and therefore increasing productivity.
The choice of Creusabro® steels during product design or maintenance repair will bring multiple benefits, including:
Longer lasting wear parts play a significant role to reach optimum operational performance and avoid costly machine downtime. Creusabro® steels have proven to exceed the wear resistance of classical water quenched plates:
Alternatively, Creusabro® steels offer substantial weight savings and increased payload potential (lower thickness is required) for the same wear life as standard water quenched plates.
Creusabro® has a guaranteed impact energy of min 32 J at -20°C. It offers the toughness and weldability necessary to perform not just as a wear liner, but as a structural material in mining and tipper truck bodies, shovel buckets, heavy-duty scrap shears, etc…
Specific chemical composition and initial microstructure result in a high resistance to softening compared to conventional water quenched, which loose their hardness above 250°C.
Creusabro® is the ideal choice for hot industrial applications e.g. in Power, Cement, Iron & Steel industries.
For many years, Creusabro® abrasion resistant steels provide optimal solutions that translate into significant reduction of total cost of ownership and improvement in operational profitability.
The minor initial cost difference in the base material is far outweighed by the direct costs of part fabrication, consumables and labor for repairs/replacements, as well as the even higher indirect costs such as inventory costs and production losses due to machine unavailability.
Creusabro® 8000 liners replacing classical 450 HB water quenched plate, Australia
450 HB : 2500 hours
C8000 : 5600 hours
+125% improvement in liner wear life.
Estimated Bucket Maintenance Cost Saving: ~ $ 96,000 / bucket / year
The minor initial cost difference in the base material is far outweighed by the direct costs of kit fabrication and installation.
Creusabro® DUAL liners replacing weld overlay plate, Australia
Original 19+12 mm weld overlay studded crusher feed liners failed due to impact load from isolated rocks.
The feed chute relined with CDUAL in 30 mm bolted liners solved the problem as the material was able to handle both the high abrasion wear and impact loads.
Wear through the full liner thickness has prolonged the overall lifetime by +250%.
Creusabro® 4800 replacing weld overlay plates, Morocco – Indonesia
Operating temperature ~ 300 °C
Original weld overlay solution provided a limited service life due to its excessive brittleness under repetitive impacts. In addition, the high operating temperatures in service up to 300°C inevitably result to an opening of existing surface cracks, thereby speeding up the erosive wear.
Creusabro® 4800 combines a higher formability required for complex part fabrication, and higher wear and heat resistance resulting to
an increase in service by 30 – 50%.
Creusabro® 8000 replacing 500 HB water quenched plate or tool steels, Germany
Homogeneous material properties (through hardened), high strength and toughness improve resistance of the cut edge surface against wear and cyclic loads.
Reduced HAZ during plasma or oxy-cutting improves edge sharpness and longevity.
As a result, +50% longer lifetime was achieved.
C8000 enables to close the gap with tool steels at a lower cost/ton of fragmentized material.
Our Creusabro® products are available through:
Our success is driven by partnerships with specialized steel service centers.
To find your nearest distributor or Industeel sales office, please visit the following links.
Germany, Austria, Switzerland, Belgium, The Netherlands, Hungary, Luxemburg
France & Overseas territories and Departments, Switzerland, Madagascar
Slovakia, Czech republic, Slovenia
Sweden, Finland, Norway
Italy, United Kingdom, Spain, Turkey
|A. Naumann Stahl AG
Australia, New Zealand
|STULZ-SICKLES STEEL CO.
|Schleisner Flame & Plasma Cutting Ltd.
|Titus Steel Co. Ltd
|Astralloy Steel Products, Inc.
|PT Tira Austenite Tbk.
|Steel Mart India Private Ltd.
|Culture Special Steel Pte Ltd.
From our 40 sales agencies
Creusabro®4800 & Creusabro®8000 can operate under temperatures up to 450°C (840°F) continuously, for all thickness between 3mm and 150mm
It depends on the holding time and the temperature, after one hour under 500°C the hardness loss will be low, and will slowly increase in the time when traditional 400 or 500Hb material will loss half of their hardness in the first hour
Datasheets are giving maximal indications, and depending on thickness all producers must adapt the composition, but for examples (in average) the Chromium content of a Creusabro® 4800 is 3 times higher than a common 400 HB, The Nickel content of a Creusabro®8000 is 3 to 20 times higher than classical 500 HB
Even if Creusabro is more alloyed than classical wear resistant steel, weldability is excellent. As a matter of proof, it is possible to compare the requested preheating temperature for combined thickness, Creusabro® is more tolerant.
Due to its composition, Creusabro® has a good resistance to corrosion in an aqueous environment, better than common water quenched material. It is not suitable to work in an acidic environment as a stainless steel.
It depends on the thickness, for example on a 100mm thickness, we identified a decarburised zone of 300 µm
As wear resistant steels, the toughness of Creusabro®4800 and Creusabro®8000 are not measured, that’s why we give conservative typical values in our datasheets
It is important to distinguish the work hardening under shocks and the plastic reaction of a TRIP steel due to residual austenite that turns to martensite and to appearance of micro carbides of chromium, molybdenum.
|Creusabro®4800||360 (as-delivered) => 430 HB (after work hardening)|
|Creusabro®8000||460 (as-delivered) => 530 HB (after work hardening)|
|Creusabro®Dual||460 (as-delivered) => 530 HB (after work hardening)|
|Creusabro®M||220 (as-delivered) => 600 HB (after work hardening)|