Creusabro® 4800 Description

Creusabro® 4800 can be hot formed at a temperature of 450 – 500°C (840 – 930°F) without any further heat treatment. At this temperature the force necessary to deform the plate will be lower than at room temperature, and the deformation capability of the steel will be higher (smaller forming radius).
It is possible to hot form a Creusabro® 4800 plate of thickness ≤ 20 mm (.78”) within temperature range 870 – 1000°C (1600 – 1830°F) followed by air cooling without affecting steel properties. This process is particularly interesting to reduce bending / rolling forces and to increase the deformation capability of the steel.


Creusabro® 4800 (ISO/TR 15608 class 3.3) can be welded by all traditional welding processes: manual, semi – automatic under gas, automatic under fluxes. For welds non exposed to wear, the following welding products can be used.


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
  • 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 %)

≤ 0.20≤ 0.005≤ .018≤ 1.6≤ 1.0≤ 1.9≤ 0.40

Creusabro® 4800 Mechanical properties:

Typical values

Hardness (HB)YS MPa (ksi)UTS MPa (ksi)Elongation 5.65 %KCVL – 20°C (-4°F) J ( modulus GPa
370900 (130)1200 (174)1236 (27)205

Guaranteed values (as supplied) Hardness 340 – 400 HBW


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