Del impacto severo a la abrasión extrema: chapas AR400, AR450 y AR500 más chapa bimetálica de carburo de cromo — el grado correcto para cada zona de desgaste, entregado cortado a medida, rolado o perforado según plano.
Cucharones, tolvas, chutes, ductos, alimentadores, tolvas de camión
Disponibilidad
Listas para pedido o diseñadas a medida — Máxima productividad · Mayor vida útil · Aplicación especial
Los grados de chapa
El grado correcto para cada zona
370–430 HBW
Chapa AR 400
Alta tenacidad, excelente soldabilidad y conformabilidad — impacto moderado: cucharones, tolvas, chutes, alimentadores.
420–475 HBW
Chapa AR 450
El equilibrio dureza-tenacidad — chancado, minería pesada y excavación.
470–530 HBW
Chapa AR 500
Máxima resistencia a la abrasión — revestimientos de molinos de impacto, zonas de abrasión severa, puntos de transferencia.
58–65 HRC · Premium
Chapa bimetálica (CCO)
Recubrimiento de carburo de cromo (Cr7C3) para abrasión por deslizamiento extrema — chutes de finos, ciclones, ductos.
Material
Dureza
Impacto
Abrasión
Mecanismo dominante
Aplicación recomendada
AR 400
370 – 430 HBW
Impacto + abrasión
Equipos generales con impacto moderado
AR 450
420 – 475 HBW
Impacto + abrasión (equilibrado)
Chancado, minería pesada, excavación
AR 500
470 – 530 HBW
Abrasión severa
Minería, transporte, zonas de transferencia
Bimetálica (CCO)
58 – 65 HRC
Abrasión por deslizamiento
Finos abrasivos, chutes, ductos, ciclones
Overlay technology
Chromium carbide overlay (CCO)
A chromium carbide layer fusion-bonded to a mild-steel backing by submerged- or open-arc welding. The microstructure is primary Cr7C3 carbides in a eutectic austenite matrix: the hard carbides take the abrasion while the ductile plate absorbs impact and keeps the product weldable, formable and easy to install.
Standard CCO Plate
58–63 HRC · Cr7C3 > 35%
·Outlasts quenched & tempered 400 BHN plate by 5–6× in high-abrasion service
·Hardness evenly distributed through the overlay
·Overlay thickness tolerance under 0.5 mm · flatness within ±3 mm/m
·Cut, rolled, drilled, bolted or studded to your drawing
Soldadura
Mild-steel or low-hydrogen consumables, no preheat required
Corte
Plasma, cut from the backing-plate side for a clean edge
Smooth CCO — premium
60–64 HRC · Crack- and bead-free surface
·Automatic welding process yields a practically crack- and weld-bead-free surface
·Uniform chemistry and hardness through thickness — variation typically under 3 Rockwell points
·1.5–4× the service life of conventional overlay plate
·Smooth face means lower friction and far less build-up handling bulk material
·ASTM G65-4 mass loss: M30 < 0.15 g · M70 < 0.11 g
M70 — W, Nb, Ti, V and Mo added to the overlay for compound carbides: the strongest abrasion y impact resistance of the range.
M10 — non-magnetic wear plate for strong magnetic environments: 5× the life of 304 stainless in magnetic separators and iron removers.
Standard CCO
The as-welded overlay keeps its characteristic ribbed bead pattern — full abrasion resistance, at the lowest cost per square metre.
Smooth CCO
A flat, practically crack- and bead-free face: lower friction, less material build-up and 1.5–4× the service life.
Laminated wear blocks
700 HB / 63 HRC
High-chrome white iron metallurgically bonded to a mild-steel backing by a vacuum-welding process: extreme hardness on the working face, weldable and impact-tolerant behind it. Chocky bars, wear buttons, strips, wear plates and crusher hammer tips — standard shapes or custom sizes.