Creusabro® 4800

Creusabro® 4800 Advantages

• Creusabro® Unique, best, Proven Advanced technology in wear Creusabro® 4800 is a high performance wear resistant steel, exhibiting a wear resistance 50% higher than that of conventional 400HB water quenched steel. Rather than relying exclusively on a high hardness level, properties of Creusabro® 4800 are improved as a result of the combination of an enriched alloying content (chromium, nickel, molybdenum and titanium) and specific heat treatment procedures.
• Creusabro® 4800 is designed to offer the best possible optimization of an exceptional wear resistance and very acceptable workability.
• The specific concept with controlled quenching rates used in the mill fabrication practice:
  – develop a bainite-martensite mixed microstructure

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  with retained austenite absorbing impact;
  – stimulate a fine dispersion of hard micro-alloyed carbides delaying cracking and surface peel off;
  – wear resistance in service is strongly improved by a surface hardening effect of +70 HB under the action of local plastic deformations. This is known as TRIP-effect.

• Longer service life by +50 to 100%
  Creusabro® 4800 outlasts classical 400HB-class plates by 50 -100%
  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.
• Structural capacity within a wear plate
  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 potentially as a structural material.
• Workshop-friendly,
  – no residual stresses within the plate, thus no deformation during and after cutting, thanks to soft quenching process
  – excellent flatness < 5 mm/m achieved without cold-deformation
  – softer material in the as-delivery condition facilitate smooth and easy processing of complex parts at the workshop, without compromising on the wear resistance.
• Heat and wear resistance
  Specific chemical composition and initial microstructure result in a high resistance to softening compared to conventional water quenched, which lose their hardness above 250°C.
  – in-service temperature up to 450°C
  – reduced Heat Affected Zone, e.g. after flame cutting or welding
  – if required, Creusabro plates can be hot formed at without any further heat treatment.

Creusabro® 4800 Chemical analysis:

Max values (weight %)

Creusabro® 4800 Mechanical properties:

Typical values

Guaranteed values (as supplied) Hardness 340 – 400 HBW

Service:

Creusabro^® 4800 metallurgical concept improves its wear resistance compared to other anti – abrasion grades available in the market, and in all service conditions.